| growth performance, haematology, serum biochemistry and meat quality characteristics of japanese quail (coturnix coturnix japonica) fed canola meal-based diets. | the present study investigated the effect of partial replacement of soybean meal (glycine max) with canola meal (cm) (brassica napus) on the growth performance, haematology, serum biochemistry and meat quality characteristics of female japanese quails in a 35-day feeding trial. one hundred and forty 6-week-old quails 158.28 ± 11.919 g were randomly allocated to 5 isonitrogenous and isoenergetic experimental diets: control diet (cm0; with no cm inclusion); cm0 with 2.5% (cm25), 5.0% (cm50), 12.5% ... | 2018 | 30167482 |
| growth performance, serum biochemical profile, oxidative status, and fertility traits in male japanese quail fed on ginger (zingiber officinale, roscoe) essential oil. | this study was designed to evaluate the effect of ginger (zingiber officinale, rosc.) essential oil on growth performance, serum biochemical profile, oxidative stress, and histological structure of testes and fertility traits in japanese quail (coturnix coturnix japonica). 96 three-week-old male japanese quail weighing between 120 and 130 g were randomly assigned to 4 dietary treatment groups in a completely randomized design. each group was divided into 4 replicates of 6 quails. quails in contr ... | 2018 | 30050674 |
| are there facial indicators of positive emotions in birds? a first exploration in japanese quail. | the positive aspect of emotions, like pleasure, remains overlooked in birds. our aim was to contribute to the exploration of facial indicators of positive emotions. to observe contrasting emotional expressions, we used two lines of japanese quail divergently selected on their inherent fearfulness: a fearful line (long tonic immobility duration: lti) and a less fearful line (short tonic immobility duration: sti). to induce positive emotions, we gave individual quail the opportunity to perform a r ... | 2018 | 29969647 |
| behavioral changes in japanese quails exposed to predicted environmentally relevant abamectin concentrations. | abamectin (aba) toxicity in fish, amphibian and mammals was already proven, but its effect on birds is almost unknown. thus, the aim of our study is to assess the impact of exposure to water with aba for 40 days at predicted environmentally relevant concentrations on the behavior of female japanese quails (coturnix coturnix japonica). the three following experimental groups (n = 10 each) were set: "control", quails exposed to drinking water, without aba, "ec1x" and "ec1000x" (0.31 mg a.i./l and ... | 2018 | 29913616 |
| dietary supplemented effects of mannan-oligosaccharides on biochemical parameters of 4 close-bred flocks of japanese quail breeders. | the current study was carried out to investigate the consequences of mannan-oligosaccharides (mos), a prebiotic, as feed supplement on biochemical parameters of japanese quail breeders (coturnix coturnix japonica). twelve-week-old, 960 birds, belonging to 4 close-bred flocks (cbf), were randomly selected and divided into 4 treatment groups with 3 replicates according to pattern (4 strains × 4 treatment groups × 3 replicates). birds were fed corn-based basal diet or the same diet supplemented wit ... | 2018 | 29897547 |
| neurotrophins and trk receptors in the developing and adult ovary of coturnix coturnix japonica. | ngf, bdnf, nt-3 and their specific receptors trka, trkb and trkc are known to be involved in the development and maintenance of vertebrates' nervous system. however, these molecules play a role also in non-neuronal tissue, such as in the reproductive system. in this study we investigated the presence and localization of neurotrophins and trk receptors to unravel their potential role in the developing and adult ovary of japanese quail, a model species well suited for reproduction studies. western ... | 2018 | 29842992 |
| evaluation of propolis extract as a disinfectant of japanese quail (coturnix coturnix japonica) hatching eggs. | this study was carried out to evaluate the effectiveness of an alcoholic propolis extract (15%) as a disinfectant for japanese quail (coturnix coturnix japonica) hatching eggs. a total of 600 eggs were randomly divided into four experimental groups: 1) negative control (nc), without disinfection, 2) control (c), fumigated with formaldehyde gas, 3) (a), sprayed with 96% alcohol, and 4) (p), sprayed with 15% alcoholic propolis extract. the eggs were incubated artificially in a bios hatching appara ... | 2018 | 29672738 |
| erratum to "neurotrophins and specific receptors in the oviduct tracts of japanese quail (coturnix coturnix japonica)" [aanat 210c (2017) 112-120]. | | 2018 | 29653601 |
| a life in science with the avian embryo. | my career in research was a second thought. i first (during 8 years) worked as a secondary school teacher and after 4-5 years, during which my two daughters were born, i found a way to escape from what was to be a lifetime job. for two years, my initiation to research was limited to the free time left by my teaching duties. this period of time was a bit "complicated" but not enough to prevent me to realize that research was really what i wanted to do for the rest of my life… and this was when i ... | 2018 | 29616728 |
| age dependent variations in the deep brain photoreceptors (dbps), gnrh-gnih system and testicular steroidogenesis in japanese quail, coturnix coturnix japonica. | the complex physiology of aging involves a number of molecular and biochemical events, manifested as signs of senescence. japanese quail is a very unique and advantageous model to study the signs and symptoms of senescence in the central and peripheral modules of hpg axis. in the present study, we have investigated the age dependent variations in hypothalamic deep brain photoreceptors (dbps), central gnrh-i/ii-gnih-mel1cr system, testicular gnrh-gnih system, testicular steroidogenic genes and pr ... | 2018 | 29580815 |
| insights into thermal stress in japanese quail (coturnix coturnix): dynamics of immunoendocrine and biochemical responses during and after chronic exposure. | avian require comfortable temperatures for optimal development and heat stress is a high concern in warm weather countries. we aimed to assess the dynamics of immunoendocrine and biochemical variables responses of birds exposed to a heat stressor applied during daylight hours, during the chronic stress and the recovery periods. we hypothesize that variables involved in the birds response will be differentially and gradually modified during those periods. female quail (n = 210) were housed in six ... | 2018 | 29478357 |
| effect of probiotic supplementation on organic feed to alternative antibiotic growth promoter on production performance and economics analysis of quail. | the purpose of this study was to know the production performance and economic analysis in quail which use probiotic supplementation to alternate antibiotic growth promoter (agp) to feed consumption, water consumption, egg production, egg mass, feed conversion, and feed efficiency. | 2017 | 29391694 |
| effect of different levels of dietary vitamin e on reproductive and productive performances in japanese quails (coturnix coturnix japonica). | the aim of this study was to evaluate the effects of dietary vitamin e on reproductive and productive parameters in japanese quails. a total number of 240 female and 80 male japanese quail were divided into five treatments with four replications in a completely randomized design. experimental diets were zero control, 30, 60, 120 and 240 mg kg-1 of vitamin e. fertility and total hatchability were not affected by treatments. but, the lowest hatch of fertile eggs and the highest embryonic death wer ... | 2017 | 29326796 |
| acute heat stress alters the expression of orexin system in quail muscle. | accumulating evidences indicate that the hypothalamic neuropeptide orexins or hypocretins are involved in stress-induced responses in mammals. recently, we found that orexin is expressed and secreted from avian muscle cells, however its regulation is still unknown. in this study, we investigated the effect of heat and oxidative stress, the most challenging stressors in poultry production, on the expression of orexin system in quail muscle tissues and myoblast cell lines. four week-old geneticall ... | 2017 | 29311994 |
| effects of phytosterols as food additives on adrenal and reproductive endocrine function during sexual maturation in male japanese quail (coturnix coturnix japonica). | varying amounts of phytosterols (ps) occur naturally in several foods of plant origin. ps, which are structurally and functionally similar to cholesterol, have been shown to reduce plasma total cholesterol (tc) and low-density lipoprotein-cholesterol (ldl-c) levels. moreover, ps disrupts endocrine function in certain animals. in the present study, we investigated the effects of high doses of ps on adrenal and reproductive endocrine function during sexual maturation in japanese male quails. two e ... | 2018 | 32055169 |
| accumulation of steroid hormones in the eggshells of japanese quail (coturnix coturnix japonica). | oviparous mother transfer significant amounts of steroid to egg yolk during oviposition and the amounts may vary throughout the embryonic development. eggshell may contain steroid hormones and the amounts could be different during embryonic development inside the egg. this study was designed to quantify the steroid concentrations in the eggshells of japanese quail. we hypothesized that the steroids would be accumulated in the eggshells in a sex-dependent manner. eggshells were obtained from thre ... | 2018 | 29174486 |
| antouka super® induced oxidative stress and reproductive toxicity in male japanese quail (coturnix coturnix japonica). | antouka super® (as), a combination of insecticide (pirimiphos-methyl 16% and permethrin 3%), is one of the most widely used pesticides in agriculture, public health, home and garden, with high potential for human and animal exposure. | 2017 | 29057334 |
| the importance of propolis in alleviating the negative physiological effects of heat stress in quail chicks. | heat stress is one of the most detrimental confrontations in tropical and subtropical regions of the world, causing considerable economic losses in poultry production. propolis, a resinous product of worker honeybees, possesses several biological activities that could be used to alleviate the deleterious effects of high environmental temperature on poultry production. the current study was aimed at evaluating the effects of propolis supplementation to japanese quail (coturnix coturnix japonica) ... | 2017 | 29053741 |
| apoptotic mechanism behind the testicular atrophy in photorefractory and scotosensitive quail: involvement of gnih induced p-53 dependent bax-caspase-3 mediated pathway. | in most of the avian species, daylength or photoperiod is the main environmental factor regulating reproduction. during their annual gonadal cycle, birds once sensitive to short or long day effect develop refractoriness to the same daylength and gonad develop or regress accordingly. the present study investigated the effects of photoperiodic alterations on apoptosis mediated testicular responses of photosensitive/photorefractory and scotosensitive/scotorefractory quail, coturnix coturnix japonic ... | 2017 | 28992606 |
| coccidia of japanese quail: from identification, prevalence, infection, and immunization. | a systematic study was undertaken to identify the species, characterize the pathogenicity, and assess the immunization of eimeria bateri in japanese quail ( coturnix coturnix japonica). in total, 107 japanese quail farms were examined. the samples were processed and oocyst shape indices of sporulated oocysts were determined. out of 107 examined farms, 34 (31.78%) farms were positive. four eimeria spp. were morphologically identified. for characterization of the pathogenicity, japanese quail were ... | 2018 | 28937852 |
| testicular atrophy and reproductive quiescence in photorefractory and scotosensitive quail: involvement of hypothalamic deep brain photoreceptors and gnrh-gnih system. | birds time their daily and seasonal activities in synchronization with circadian and annual periodicities in the environment, which is mainly provided by changes in photoperiod/day length conditions. photoperiod appears to act at the level of eye, pineal and encephalic/deep brain photoperception and thus entrain the hypothalamic clock as well as reproductive circuitry in different avian species. in this article our focus of study is to elucidate out the underlying molecular mechanism of modulati ... | 2017 | 28923598 |
| effects of multi-trait selection on phenotypic and genetic changes in japanese quail (coturnix coturnix japonica). | the present study in japanese quail was aimed to develop multi-trait genetic selection program for a meat type sire line utilizing the mixed-model methodology. in total, 2000 pedigreed quail were formed the basis of the research where a multi-trait animal model was performed. a flock consisting of a total of 160 families (1 male: 3 female) was developed from the initial flock (base population of sire line), so as to obtain a selection flock sire line. body weight at 5 weeks of age was chosen as ... | 2016 | 32908371 |
| effects of early-life stage exposure of double-crested cormorant embryos to 4 environmental chemicals on apical outcomes of regulatory relevance. | environmental risk assessment is often challenged by a lack of toxicity data for ecological species. the overall goal of this research project was to employ an avian early-life stage toxicity test to determine the effects of four chemicals (benzo[a]pyrene [bap], chlorpyrifos [cpf], fluoxetine hydrochloride [flx], ethinylestradiol [ee2]) in an ecologically relevant avian species, the double-crested cormorant (dcco; phalacrocorax auritus), and to compare our results with those we previously report ... | 2020 | 33136306 |
| proposed indoor test procedure to quantify pesticide treatment effects on seed consumption by birds. | pesticides used in seed coatings can influence seed consumption by birds and, therefore, actual exposure risk for them. a quantification of such effects on consumption is currently not regarded as a refinement factor in environmental risk assessments, although it is a possible option and should be considered, for example, for comparing exposure risk of different pesticides. it can highlight avoidance behavior, preventing birds from taking up lethal or sublethal pesticide doses. to formulate a st ... | 2020 | 31634978 |
| [patterns of bird nocturnal migration at shenyang taoxian international airport, northeast china]. | the high frequency of bird strikes at night during the migration season is a remarkable characteristic of bird strikes at airports. understanding the nocturnal migration patterns of birds is important for improving the methods to prevent bird strikes at night. in this study, we combined the methods of mist-net capture and sound recording to examine the composition of bird species and the patterns of nocturnal migration at taoxian airport. we found that 56 species of birds (88.9% of the total) mi ... | 2019 | 30907552 |
| skeletal development in blue-breasted quail embryos. | the blue-breasted quail (coturnix chinensis), the smallest species of quail with short generation interval and excellent reproductive performance, is a potential avian research model. a normal series of skeletal development of avian embryos could be served as a reference standard in the fields of developmental biology and teratological testing as well as in the investigation of mutation with skeletal abnormalities and in the study of the molecular mechanisms of skeletal development through genom ... | 2019 | 30654411 |
| mc1r polymorphism associated with plumage color variations in coturnix chinensis. | the melanocortin 1 receptor (mc1r) gene was investigated as a candidate for plumage variations in chinese painted quail, coturnix chinensis. four silent and two missense nucleotide polymorphisms were identified. the correspondent amino acid changes, p.glu92lys and p.pro292leu, were found in blue face and red breasted animals respectively. blue face is a melanic phenotype similar to the co-dominant extended brown of japanese quail, and both share the p.glu92lys mutation. the association of p.pro2 ... | 2018 | 29974967 |
| quail (coturnix japonica) egg attenuated 2-butoxyethanol-induced enzymatic dysregulation, disseminated thrombosis and hemolytic impairment in female wistar rats. | influence of quail egg on pathologies has increased research interests and series of investigations are currently being done on its influence against these pathologies. the influence of quail egg against 2-butoxyethanol induced hemolysis and disseminated thrombosis was investigated to determine the enzymatic regulations that ensue in the amelioration of deleterious hemolytic and disseminated thrombosis displayed in female wistar rats. quail egg was separated into three (3) components (extracts)- ... | 2020 | 33169693 |
| antimicrobial interventions to reduce salmonella and campylobacter populations and improve shelf life of quail carcasses. | quail (coturnix japonica) is processed and marketed as fresh meat, with limited shelf life. the objective of this study was to evaluate the efficacy of antimicrobial interventions during slaughter on reducing salmonella and campylobacter contamination and to determine the microbiological shelf life of quail during refrigerated (4°c) storage. three antimicrobials, peracetic acid (400 ppm; paa), citrilow (ph 1.2), and cecure (cetylpyridinium chloride [cpc], 450 ppm), along with a water and no-trea ... | 2020 | 33142515 |
| effects of tryptophan and probiotic supplementation on growth and behavior in quail. | in laying hens, a diet supplemented with tryptophan (trp) has been shown to affect their pecking behavior. however, unlike this positive effect, trp is also involved in negative effects on behavior and stress through indolic pathways. indole production can be reduced by probiotics (pro), thus we hypothesized that pro may prevent negative effects of trp and increase beneficial effects on behavior in birds. combined effects of pro and trp were also expected. to investigate the effects on behavior ... | 2020 | 33142436 |
| mapping genes for phosphorus utilization and correlated traits using a 4k snp linkage map in japanese quail (coturnix japonica). | a large f2 cross with 920 japanese quail was used to map qtl for phosphorus utilization, calcium utilization, feed per gain and body weight gain. in addition, four bone ash traits were included, because it is known that they are genetically correlated with the focal trait of phosphorus utilization. trait recording was done at the juvenile stage of the birds. the individuals were genotyped genome-wide for about 4k snps and a linkage map constructed, which agreed well with the reference genome. qt ... | 2020 | 33140443 |
| photoperiod dependent expression of estrogen receptor alpha in testes of japanese quail: involvement of withania somnifera in apoptosis amelioration. | light plays important function in the regulation of reproduction in vertebrates including birds. the prolonged long day length exposure causes reproductively inactive state or photorefractoriness in many avian species including japanese quail. withania somnifera (ws) is a medicinal plant known to have beneficial effects on stress and infertility. the study investigates the physiological effect of ws on the light-induced stress in quail mediated by estrogen receptor alpha. quails were exposed to ... | 2020 | 33129445 |
| immediate and transgenerational effects of thymol supplementation, inactivated salmonella and chronic heat stress on representative immune variables of japanese quail. | environmental challenges are integrated in the inmunoneuroendocrine interplay, impacting the immune system of the challenged individuals, and potentially implying transgenerational effects on their offspring. this study addressed whether dietary supplementation with thymol can modulate the immune response of adult japanese quail when simultaneously exposed to an inoculum of inactivated salmonella enteritidis and a chronic heat stress (chs). we also evaluated whether the experienced situations by ... | 2020 | 33097768 |
| the use of cold pressed oils as eco-friendly alternatives for antibiotics in high and low-cp diets of laying japanese quail. | a trial was conducted to access the impact of varying levels of dietary protein (cp) and cold-pressed oil on hematological parameters, liver and kidney function, antioxidant and immunoglobulin indices and lipid profile of japanese quail at the laying period. a number of 324 mature ten-week of age japanese quails (216 females and 108 males) were selected. the red blood cells were increased in response to marjoram and thyme oil applied separately or together when comparing with control group (p < ... | 2020 | 33095104 |
| influence of dietary graded levels of lycopene on the growth performance, muscle cholesterol level and oxidative status of japanese quail fed high-fat diet. | this study investigated the impact of supplementing normal and high-fat diets with graded levels of lycopene on the growth performance, cholesterol level of the muscle, and antioxidant markers in japanese quail. a total of 192, 14 day-old unsexed japanese quail were part of a 2 x 4 factorial arrangement consisting of a control group; birds that were fed a normal fat diet (nfd), another control group; birds that were fed a high-fat diet (hfd) with four levels of lycopene for nfd and hfd (0, 100, ... | 2020 | 33084757 |
| effects of varying dietary dl-methionine levels on productive and reproductive performance, egg quality, and blood biochemical parameters of quail breeders. | the present study was carried out to study the effects of varying dietary dl-methionine (0, 0.5, 1.5, 2.5, and 3.5 g/kg) levels on the productive and reproductive performance, egg quality and blood biochemical parameters of quail breeders. in total, 150 mature japanese quails at eight weeks of age were randomly allotted to five groups of 30 for each group. each group included five replicates, each of six quails (four females and two males). the results showed that egg number, egg weight and egg ... | 2020 | 33050290 |
| effects of betaine and ascorbic acid supplementation on serum gonadotropin, testicular histological analysis and sperm quality in male japanese quails during the dry season. | the study investigated the effects of betaine and ascorbic acid supplementation on serum gonadotropin, testicular histological features and sperm quality in male japanese quails reared during the dry season. two hundred and forty 14 day-old male japanese quails, obtained commercially and housed in cages, were assigned randomly to four dietary treatments for 56 days. each treatment comprised of 3 replicates (20 birds per replicate). birds in control group were fed only basal diet, while those in ... | 2020 | 33038825 |
| effect of essential oil supplementation to diet on meat quality, fatty acid composition, performance parameters and intestinal microbiota of japanese quails. | the effect of essential oil (eo) supplementation on carcass characteristics of japanese quails and interactions between ingredients and intestinal morphology were investigated in this study. a total of 250 quails were fed different diet: d1, basal diet (bd); d2, bd plus palmarosa oil (po; 100 µg/kg diet); d3, bd plus lemon myrtle oil (lmo; 100 µg/kg diet); d4, bd plus α-tops (mixture of α-terpineol, cineole and terpinene-4-ol; 100 µg/kg diet); and d5, bd plus cyclodextrin. overall growth perform ... | 2020 | 32969077 |
| impact of dietary zinc oxide nanoparticles on selected serum biomarkers, lipid peroxidation and tissue gene expression of antioxidant enzymes and cytokines in japanese quail. | the use of zinc oxide in the form of nanoparticles (zno-nps) is of great benefit due to its potent effectiveness and higher bioavailability compared to zinc oxide. this study aimed to investigate the impact of dietary inclusion of different doses of zno-nps on selected serum biomarkers, lipid peroxidation and tissue gene expression of antioxidant enzymes and cytokines in japanese quail. eighty japanese quails (coturnix japonica) (45 days old) were randomly divided into four groups (20 birds for ... | 2020 | 32967666 |
| assessment of dietary selenium and vitamin e on laying performance and quality parameters of fresh and stored eggs in japanese quails. | the effect of dietary supplementation with ve and se on the laying productive performance, immunity, and the quality parameters of fresh and stored eggs was assessed. for this study, five treatments, namely control (basal diet), control plus 30 mg of ve and 0.4 mg kg-1 sodium selenite (ve30ss), control plus 30 mg of ve and 0.4 mg kg-1 of sel-plex® (ve30sp), control plus 120 mg ve and 0.4 mg kg-1 sodium selenite (ve120ss), and control plus 120 mg ve and 0.4 mg kg-1 sel-plex (ve120sp), were examin ... | 2020 | 32962208 |
| estrogen-dependent sex difference in microglia in the developing brain of japanese quail (coturnix japonica). | brain sexual differentiation is a developmental process leading to the establishment of stable neural sex differences. in birds and rodents, this process is largely driven by estrogens during a critical period. in rodents, estrogens drive the masculinization of the brain, a process that partly depends on microglia. in contrast, in birds, estrogens produced by females induce demasculinization, but whether microglia are involved in this process is unknown. this study assessed whether microglial nu ... | 2020 | 32961623 |
| the effects of chronic lead exposure on the ovaries of female juvenile japanese quails (coturnix japonica): developmental delay, histopathological alterations, hormone release disruption and gene expression disorder. | lead (pb) is well-recognized for its great hazards to human and wildlife health. it has negative influences on multiple organs and systems of birds. especially, lead exposure caused adverse impacts on bird reproduction. in this study, one week old female japanese quails were randomly allocated into four groups and each group was respectively fed with 0, 50 ppm, 500 ppm and 1000 ppm pb in drinking water for 36 days to determine the effects of chronic lead exposure on ovarian development and funct ... | 2020 | 32956867 |
| morphometric evaluation of japanese quail embryos and their extraembryonic vascular networks exposed to low-frequency magnetic field with two different intensities. | animals developed or in an embryonic stage, are constantly subjected to magnetic pollution generated by electrical and electronic devices. several researches have used the bird embryo as an experimental model to evaluate the action of magnetic field (mf) and electromagnetic field (emf). this study proposed to perform a morphometric evaluation in the embryos and in the blood vascular network of the yolk sac membranes (ysm) of japanese quail (coturnix japonica) exposed to the 60 hz mf with two dif ... | 2020 | 32954862 |
| anti-mycotoxigenic properties of probiotic bacillus spp. in japanese quails. | the current study was conducted to evaluate the anti-mycotoxigenic effects of previously isolated bacillus spp. in japanese quails. a total of 240-day-old japanese quails were assigned in to six treatments and four replicates. dietary treatments included the following: negative control (basal diet), positive control (basal diet + 2.5 ppm afltatoxin b1), probiotic treatments (basal diet + 2.5 ppm afltatoxin b1), and 108 cfu/ml of different bacillus spp. (b. megaterium, b. subtilis, or b. laterosp ... | 2020 | 32946023 |
| morphology of the avian yolk sac. | the avian yolk sac is a multifunctional extraembryonic organ that serves not only as a site of nutrient (yolk) absorption, but also for early hemopoiesis, and formation of blood vessels. although the yolk sac membrane being specialized to function as an extraembryonic absorptive organ, it is neither morphologically nor functionally part of the embryonic gut. yolk absorption is by the phagocytic activity of the extraembryonic endoderm. i used cryohistology and resin embedding histology of complet ... | 2020 | 32930439 |
| the impact of differential expression of the pectoral muscle proteome in two groups of japanese quail with different growth rates on meat quality. | 1. in this study, the proteomics method was applied to genetically evaluate the performance and carcase characteristics of japanese quail and their molecular mechanisms, and to further determine and analyse the meat quality and muscle proteins. 2. ten japanese quail were selected from among 400 quail from the seventh generation of a population. various traits were recorded and multivariate analysis was applied using wombat software. 3. differential expression of pectoral muscle proteins was perf ... | 2020 | 32902318 |
| emotionality modulates the impact of chronic stress on memory and neurogenesis in birds. | chronic stress is a strong modulator of cognitive processes, such as learning and memory. there is, however, great within-individual variation in how an animal perceives and reacts to stressors. these differences in coping with stress modulate the development of stress-induced memory alterations. the present study investigated whether and how chronic stress and individual emotionality interrelate and influence memory performances and brain neurogenesis in birds. for that, we used two lines of ja ... | 2020 | 32884096 |
| fiber levels in laying quail diets. | the objective of this work was to determine the effect of inclusion levels of dietary fiber in the japanese quail diets. 480 japanese quail were distributed in a completely randomized design, with 5 treatments and 12 replicates composed of 8 birds each. the treatments were constituted by five increasing levels of fiber in the diet: 2.78; 3.08; 3.38; 3.68; 3.98%. the parameters of productive performance, water consumption, egg quality, total lipids in the egg, excreta humidity, weight of digestiv ... | 2020 | 32876139 |
| the relation between liver damage and reproduction in female japanese quail (coturnix japonica) exposed to high ambient temperature. | reproductive failure associated with heat stress is a well-known phenomenon in poultry. high temperatures also induce various metabolic disturbances in many animals. because the liver plays a central role in metabolism, the present study aimed to clarify the relationship between liver and reproduction in japanese quails exposed to high temperatures. in the consecutive 20-d experimental period, quails were treated with 25°c (control) or 34°c (heat) from 12:00 to 16:00. eggs were collected for hat ... | 2020 | 32868003 |
| association of lepr polymorphisms with egg production and growth performance in female japanese quails. | this study aimed to screen intron 8 of the leptin receptor (lepr) gene for polymorphisms in female japanese quails. two adjacent novel snps (a277g and a304g) were detected using pcr-sscp and sequencing. these snps produced three haplotypes (aa/aa, ag/ag, and gg/gg) that were significantly (p ≤ 0.05) associated with growth and egg production traits. gg/gg haplotype-quails had significantly (p ≤ 0.05) lower egg production, feed intake, growth performance, lipid profile, serum levels of sex hormone ... | 2020 | 32865111 |
| the anorexigenic effect of vasoactive intestinal polypeptide in japanese quail is associated with molecular changes in the arcuate and dorsomedial hypothalamic nuclei. | vasoactive intestinal polypeptide (vip) is involved in gastric smooth muscle relaxation, vasodilation, and gastric secretions. it is also associated with appetite regulation, eliciting an anorexigenic response in mammals, birds, and fish; however, the molecular mechanism mediating this response is not well understood. the aim of the present study was thus to investigate hypothalamic mechanisms mediating vip-induced satiety in 7-d old japanese quail. in experiment 1, chicks that received intracer ... | 2020 | 32858465 |
| warmer, faster, stronger: ca2+ cycling in avian myocardium. | birds occupy a unique position in the evolution of cardiac design. their hearts are capable of cardiac performance on par with, or exceeding that of mammals, and yet the structure of their cardiomyocytes resembles those of reptiles. it has been suggested that birds use intracellular ca2+ stored within the sarcoplasmic reticulum (sr) to power contractile function, but neither sr ca2+ content nor the cross-talk between channels underlying ca2+-induced ca2+ release (cicr) have been studied in adult ... | 2020 | 32843363 |
| pace and stability of embryonic development affect telomere dynamics: an experimental study in a precocial bird model. | prenatal effects on telomere length are increasingly recognized as a potential contributor to the developmental origin of health and adult disease. while it is becoming clear that telomere length is influenced by prenatal conditions, the factors affecting telomere dynamics during embryogenesis remain poorly understood. we manipulated both the pace and stability of embryonic development through varying incubation temperature and its stability in japanese quail. we investigated the impact on telom ... | 2020 | 32842933 |
| defense of bombardier beetles against avian predators. | bombardier beetles (coleoptera, carabidae, brachininae) possess a remarkable defense mechanism where a hot chemical spray is released from the tip of their abdomen, with an audible explosive sound. to date, the repellent properties of these chemicals have been tested against a limited number of taxa, such as amphibians and insects. to investigate the impact of bombardier beetle defenses on avian predators, feeding trials were conducted using the bombardier beetle (pheropsophus jessoensis) and th ... | 2020 | 32833096 |
| the protective effect of xanthohumol on the content of selected elements in the bone tissue for exposed japanese quails to tcdd. | dioxins (including 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) are highly toxic and persistent chemicals widely distributed in the environment in trace amounts, and are side products of industrial and chemical processes. exposure to dioxins leads to multiorgan morphological and functional abnormalities, including within the bone tissue, disrupting its microarchitecture and mechanical properties. xanthohumol (xn) is a chemical compound classified as a prenylated flavonoid, distinguished by multidi ... | 2020 | 32823692 |
| selection for divergent reproductive investment affects neuron size and foliation in the cerebellum. | the cerebellum has a highly conserved internal circuitry, but varies greatly in size and morphology within and across species. despite this variation, the underlying volumetric changes among the layers of the cerebellar cortex or their association with purkinje cell numbers and sizes is poorly understood. here, we examine intraspecific scaling relationships and variation in the quantitative neuroanatomy of the cerebellum in japanese quail (coturnix japonica) selected for high or low reproductive ... | 2020 | 32784306 |
| pharmacokinetics of thiamphenicol in japanese quails (coturnix japonica) after single intravenous and oral administrations. | thiamphenicol (tp) pharmacokinetics were studied in japanese quails (coturnix japonica) following a single intravenous (iv) and oral (po) administration at 30 mg/kg bw. concentrations of tp were determined with hplc and were analyzed by a noncompartmental method. after iv injection, elimination half-life (t1/2λz ), total body clearance (cltot ) volume of distribution at steady state (vdss ), and mean residence time (mrt) of tp were 3.83 hr, 0.19 l/hr/kg, 0.84 l/kg, and 4.37 hr, respectively. aft ... | 2020 | 32779236 |
| glyphosate-based herbicides influence antioxidants, reproductive hormones and gut microbiome but not reproduction: a long-term experiment in an avian model. | controversial glyphosate-based herbicides (gbhs) are the most frequently used herbicides globally. gbh residues in the wild, in animal and human food may expose non-target organisms to health risks, yet the developmental and cumulative effects of gbhs on physiology and reproduction remain poorly understood. we present the first long-term study on the effects of subtoxic gbh exposure (160 mg/kg) on multiple key physiological biomarkers (cellular oxidative status and neurotransmitters), gut microb ... | 2020 | 32768925 |
| performance, metabolic efficiency and egg quality in japanese quails fed with acidulated soybean soapstock and lecithin for a prolonged period. | this study aimed to evaluate the use of acidulated soybean soapstock in association with lecithin on productive performance, metabolic efficiency in the utilization of nutrientes, and the egg quality of japanese quails. a total of 192 quails were used, distributed randomly in a 2×2×2 factorial scheme that included two types of oils, two levels of supplementation (4% and 8%) and two levels of lecithin (1% or 0%). at the end of the six-month experimental period, some double significant interaction ... | 2020 | 32756836 |
| key role of estrogen receptor β in the organization of brain and behavior of the japanese quail. | estrogens play a key role in the sexual differentiation of the brain and behavior. while early estrogen actions exert masculinizing effects on the brain of male rodents, a diametrically opposite effect is observed in birds where estrogens demasculinize the brain of females. yet, the two vertebrate classes express similar sex differences in the brain and behavior. although erα is thought to play a major role in these processes in rodents, the role of erβ is still controversial. in birds, the iden ... | 2020 | 32735801 |
| the effect of dietary marula nut meal on the physical properties, proximate and fatty acid content of japanese quail meat. | soyabean meal (sbm) is the major dietary protein source for the poultry industry in sub-saharan africa. due to inadequate local soyabean production, alternative protein sources are required. two hundred 9-day old japanese quail chicks were randomly allocated to grower diets wherein marula nut meal (mnm) substituted sbm on a crude protein (cp) basis at 0%, 25%, 50%, 75% and 100% and fed for 4 weeks, followed by being fed on similarly formulated finisher diets for 2 weeks, and thereafter they were ... | 2020 | 32734106 |
| use of yellow mealworm (tenebrio molitor) as a protein source on growth performance, carcass traits, meat quality and intestinal morphology of japanese quails (coturnix japonica). | this experiment was conducted to examine the effects of tenebrio molitor (tm) larvae meal inclusion in diets as a replacement for fish meal and soybean oil on growth performance, carcass traits, meat quality, and intestinal morphology of japanese quails (coturnix japonica).a total of 160 mixed sex quails at seven-day of age were weighed and allocated to 20 cages. the dietary treatments were as follows: control (c) group containing 370 g soybean meal (sbm)/kg of diet and 30 g fish meal (fm)/kg of ... | 2019 | 32734084 |
| red milkwood (mimusops zeyheri) seed meal can replace maize meal in japanese quail finisher diets without compromising growth performance, feed economy and carcass yield. | mimusops zeyheri is widely distributed in sub-saharan africa and its seed meal (mzsm) has a higher energy content than maize meal (mm). we evaluated the potential of mzsm to substitute mm in japanese quail finisher diets by determining its effects on growth performance, feed intake (fi) and feed utilisation efficiency, abdominal fat deposition and carcass yield. in a completely randomised design thirty-two 5-weeks old male japanese quail were allocated to four diets wherein mzsm replaced mm at 0 ... | 2020 | 32734028 |
| effect of bacillus cereus and phytase on the expression of musculoskeletal strength and gut health in japanese quail (coturnix japonica). | we conducted a 28-day trial to evaluate the influence of bacillus cereus and phytase supplementation on the expression of musculoskeletal strength and intestinal histological features in japanese quail. two-hundred day-old quail chicks were divided into four groups with five replicates (n=10): the first group served as a control and was fed only a basal diet (bd); the second group was fed bd + 0.1% b. cereus; the third group was fed bd + 0.01% microbial phytase; and the fourth group was fed bd + ... | 2020 | 32733153 |
| assessment of genetic diversity and genetic relationships of farm and laboratory quail populations in japan using microsatellite dna markers. | the japanese quail (coturnix japonica) is an important poultry species owing to their high economic efficiency and biological advantages. the genetic diversity of farm quail populations has rarely been studied. | 2020 | 32706180 |
| modulating offspring responses: concerted effects of stress and immunogenic challenge in the parental generation. | the perception, processing and response to environmental challenges involves the activation of the immuno-neuroendocrine (ine) interplay. concerted environmental challenges might induce trade-off when resource allocation to one trait occurs at the expense of another, also producing potential transgenerational effects in the offspring. we evaluated whether concerted challenges, in the form of an immune inoculum against inactivated salmonella enteritidis (immune challenge, ich) and a chronic heat ... | 2020 | 32680897 |
| production of quail (coturnix japonica) germline chimeras by transfer of ficoll-enriched spermatogonial stem cells. | due to the absence of long-term in vitro germline competent stem cell maintenance systems and efficient methods for germline transmission, efforts to develop an effective transgenic system in quail has remained limited. to overcome this limitation, here we produced germline chimeric quails through transplantation of spermatogonial stem cells (sscs) enriched by density gradient methods utilizing ficoll-paque plus (ficoll), percoll and sucrose solution as a practical strategy for germline transmis ... | 2020 | 32679354 |
| the formation of multiple pituitary pouches from the oral ectoderm causes ectopic lens development in hedgehog signaling-defective avian embryos. | hedgehog signaling has various regulatory functions in tissue morphogenesis and differentiation. to investigate its involvement in anterior pituitary precursor development and the lens precursor potential for anterior pituitary precursors, we investigated talpid mutant japanese quail embryos, in which hedgehog signaling is defective. | 2020 | 32633438 |
| does the use of different oil sources in quail diets impact their productive and reproductive performance, egg quality, and blood constituents? | the present study investigated the impact of dietary oil sources (soybean, corn, peanut, flaxseed, olive, and sunflower oils as sources of omega 3, 6, and 9 fatty acids) on productive and reproductive traits, egg quality, hematological and biochemical blood parameters of laying japanese quail. a total of 360 eight-week mature japanese quail were randomly divided into 6 groups fed for 8 wk on a basal diet included with 1.5% of different oil sources. results showed that the highest egg weights and ... | 2020 | 32616246 |
| di-(2-ethylhexyl) phthalate induced developmental abnormalities of the ovary in quail (coturnix japonica) via disruption of the hypothalamic-pituitary-ovarian axis. | an increasing number of epidemiologic studies show that women have a special exposure profile to phthalates, and the exposures have attracted attention regarding their potential health hazards. here, we developed a model for studying the ovarian action of di-(2-ethylhexyl) phthalate (dehp) and its major metabolite monoethylhexyl phthalate (mehp). in vivo, treatment with dehp (250, 500, and 1000 mg kg^-1) induced decreased thickness of ovarian granulosa cell layer and mitochondrial damage in quai ... | 2020 | 32610232 |
| effect of se sources and concentrations on performance, antioxidant defense, and functional egg quality of laying japanese quail (coturnix japonica). | the study aimed to investigate the effect of se sources and concentrations on performance, thyroid activity, antioxidant defense, and functional egg quality of japanese quail. one hundred and twenty, 8-week-old birds were randomly assigned to 1 of 4 dietary treatments in 3 replicates (10 birds/replicate). the treatments contained inorganic sodium selenite (ss) at 0.2 mg/kg diet (ss1 = control) or 0.4 mg/kg diet (ss2) or selenomethionine (sm) at 0.2 mg/kg diet (sm1) or 0.4 mg/kg diet (sm2). egg p ... | 2020 | 32608001 |
| lead exposure influences serum biomarkers, hepatocyte survival, bone marrow hematopoiesis, and the reproductive cycle in japanese quails. | lead toxicity has been a hallmark issue of toxicology over the last decades. however, predictive and non-robust models did not provide complete data on low-dose lead interaction with the organism at different functional levels (e.g., blood-serum-liver-bone marrow-bursa fabricii-reproductive system axis). japanese quails are an animal model with a strong immune system, making them suitable for the thorough assessment of in vivo chronic lead toxicity. in this study, we have exposed japanese quails ... | 2020 | 32602051 |
| metabolisable energy partition for japanese quails. | knowing how energy intake is partitioned between maintenance, growth and egg production (ep) of birds makes it possible to structure models and recommend energy intakes based on differences in the bw, weight gain (wg) and ep on commercial quail farms. this research was a dose-response study to re-evaluate the energy partition for japanese quails in the ep phase, based on the dilution technique to modify the retained energy (re) of the birds. a total of 300 vicami® japanese quail, housed in clima ... | 2020 | 32594949 |
| artificial selection reveals the role of transcriptional constraints in the maintenance of life history variation. | the trade-off between reproduction and self-maintenance is a cornerstone of life history theory, yet its proximate underpinnings are elusive. here, we used an artificial selection approach to create replicated lines of japanese quail (coturnix japonica) that differ genetically in their reproductive investment. whole transcriptome sequencing revealed that females from lines selected for high reproductive output show a consistent upregulation of genes associated with reproduction but a simultaneou ... | 2020 | 32547781 |
| baseline corticosterone is associated with parental care in virgin japanese quail (coturnix japonica). | glucocorticoids (gcs) are thought to impact reproductive success, and ultimately fitness. in this study we focus specifically on the relationship between gcs and parental care. captive bred japanese quail (coturnix japonica) do not show spontaneous parental care behavior, however this behavior can be induced through a sensitization procedure. we investigated how the gc status of japanese quail relates to parental care in animals of both sexes exposed or not to a chick sensitization treatment. to ... | 2020 | 32511968 |
| modulation of angiogenesis by topical application of leptin and high and low molecular heparin using the japanese quail chorioallantoic membrane model. | pathological angiogenesis characterized by uncontrollable vessel growth is an accompanying feature of many diseases. the avian embryo chorioallantoic membrane (cam) is an excellent model for angiogenesis research. in our study we used a less common japanese quail cam model for the testing of angiogenic potential of leptin, high-molecular (heparin sodium) andlow-molecular (nadroparin calcium) heparins. heparins play a significant role in vascular endothelial cell function, and they are able to mo ... | 2020 | 32489285 |
| molecular and pathogenicity of infectious bronchitis virus (gammacoronavirus) in japanese quail (coturnix japonica). | infectious bronchitis virus (ibv) infection is highly infectious respiratory disease in poultry industry with significant economic importance. the prevalence of ibv in quail industry in malaysia was not well documented; therefore, its actual role in the epidemiology of the disease is relatively unknown. this study was to determine the susceptibility of japanese quail, as one of the species in commercial poultry industry, toward ibv. in addition, it will also give a potential impact on the overal ... | 2020 | 32475428 |
| research note: association of temporal expression of myostatin with hypertrophic muscle growth in different japanese quail lines. | myostatin (mstn) negatively regulates in muscle growth and development. among alternative splicing isoforms of avian mstn, mstn-a has antimyogenic activities and mstn-b functions as a promyogenic factor. in this study, different lines of japanese quail were used: a random bred control (rbc) and a heavy weight (hw) quail line with muscle hypertrophy. the objectives of the current study are to compare temporal expression of the mstn isoforms in pectoralis major muscle (pm) between 2 quail lines an ... | 2020 | 32475426 |
| the gut microbial architecture of efficiency traits in the domestic poultry model species japanese quail (coturnix japonica) assessed by mixed linear models. | it is well known that mammals and avian gut microbiota compositions are shaped by the host genomes and affect quantitative traits. the microbial architecture describes the impact of the microbiota composition on quantitative trait variation and the number and effect distribution of microbiota features. in the present study the gut microbial architecture of feed-related traits phosphorus and calcium utilization, daily gain, feed intake and feed per gain ratio in the domestic poultry model species ... | 2020 | 32471941 |
| dietary cold-pressed red and black pepper oil mixture enhances growth, carcass, blood chemistry, antioxidant, immunity and caecal pathogens of quails. | this study was carried out to explore the influence of black and red pepper oils (brpo) as a natural antibacterial agent on growth, carcass, liver and kidney functions, lipid profile, immunity and antioxidant indices of growing quails. a total of 225 japanese quails (1-week-old) were haphazardly divided into 5 groups, each group consists of 45 unsexed birds with 5 replications (9 birds each). the first group was fed basal diet (control), and the 2nd, 3rd, 4th and 5th groups fed rations containin ... | 2020 | 32445246 |
| effects on the ileal microbiota of phosphorus and calcium utilization, bird performance, and gender in japanese quail. | in this study, we aimed to investigate the ileum digesta of a large cohort of japanese quail fed the same diet, with similar environmental conditions. we also address how p utilization (pu), ca utilization (cau), and bird performance (feed intake (fi), feed conversion (fc), and body weight gain (bwg)) modify intestinal microbiota of male and female quail. despite the great number of samples analyzed (760), a core microbiome was composed of five bacteria. the unc. lactobacillus, unc. clostridacea ... | 2020 | 32438715 |
| research note: role of the hippocampus in spatial memory in japanese quail. | the japanese quail is a powerful model to characterize behavioral, physiological, and neurobiological processes in galliformes. behavioral tests have already been adapted for quail to assess memory systems, but despite the pivotal role of the hippocampus in this cognitive process, its involvement in spatial memory has not been demonstrated in this species. in this study, lesions were created in the hippocampus of japanese quail, and both lesioned and control quail were tested for spatial and cue ... | 2020 | 32416848 |
| architecture and cellular composition of the spleen in the japanese quail (coturnix japonica). | the spleen is considered a key player in birds' immunity. the stroma and the parenchyma of the spleen of the adult quail were demonstrated histologically, histochemically, and ultrastructurally. a thin capsule and the absence of trabeculae were the most characteristics of spleen stroma. the demarcation between white pulp and red pulp was not observed in the quail. white pulp formed from the periarterial lymphatic sheath and the periellipsoidal lymphatic sheath, both of which were surrounded by a ... | 2020 | 32393414 |
| effect of a diet supplemented with the moringa oleifera seed powder on the performance, egg quality, and gene expression in japanese laying quail under heat-stress. | this study was conducted to evaluate the effect of three concentrations of the moringa oleifera seed powder as a feed supplement on the productive performance and egg quality traits of laying japanese quail (coturnix japonica) exposed to heat stress. the expression patterns of the genes estrogen receptors (esr2), follicle-stimulating hormone receptor (fshr), prolactin receptor (prlr), and steroidogenic acute regulatory protein (star) were estimated in ovaries, using a quantitative real-time poly ... | 2020 | 32392810 |
| use of reactive oxygen species (ozone, hydrogen peroxide) for disinfection of hatching eggs. | the sample consisted of 480 hatching eggs of japanese quails and was divided into 4 groups. before the transfer to the incubator, the first group was not disinfected (negative control). in the second group, eggs were disinfected by means of formaldehyde fumigation (positive control). in the third and fourth group, reactive oxygen forms were used for disinfection- perhydrol (h2o2) and ozone (o3), respectively. eggs were incubated under standard conditions. on the 14th d, eggs were candled, and pr ... | 2020 | 32359583 |
| effect of dietary supplementation of biological curcumin nanoparticles on growth and carcass traits, antioxidant status, immunity and caecal microbiota of japanese quails. | this study was planned to evaluate the impact of different nano-curcumin levels on the growth rate, carcass, blood chemistry and caecal microbes of growing quail. a total of 270 japanese quails at one-week-old were distributed to six equal groups; each group consisted of 45 unsexed birds with five replications (nine quails each). the 1st group was fed a basal diet, whereas the 2nd, 3rd, 4th, 5th and 6th groups were fed diets containing nano-curcumin (0.1, 0.2, 0.3, 0.4 and 0.5 g/kg diet, respect ... | 2020 | 32357410 |
| sexually differentiated and neuroanatomically specific co-expression of aromatase neurons and gad67 in the male and female quail brain. | testosterone aromatization into estrogens in the preoptic area (poa) is critical for the activation of male sexual behavior in many vertebrates. yet, the cellular mechanisms mediating actions of neuroestrogens on sexual behavior remain largely unknown. we investigated in male and female japanese quail by dual-label fluorescent in situ hybridization (fish) whether aromatase-positive (aro) neurons express glutamic acid decarboxylase 67 (gad67), the rate-limiting enzyme in gaba biosynthesis. aro ce ... | 2020 | 32349174 |
| toxicity evaluation of pesticide chlorpyrifos in male japanese quails (coturnix japonica). | in the current study, chlorpyrifos was used as a test chemical to evaluate its possible toxicological effect on birds. a total of 45 adult male japanese quails were divided into five groups (a to e). each group, containing 9 birds was further divided into 3 sub-groups (containing 3 birds each). group a served as control, while all other groups and sub-groups were exposed to selected pesticide for different trial periods. chlorpyrifos sub-lethal doses were orally administered daily at the rate of ... | 2020 | 32347497 |
| influence of a 1000 times weakened magnetic field on embryogenesis and ontogenesis of the japanese quail in several generations. | the paper presents experimental data on the influence of a 1000-fold weakening of the earth's magnetic field on the embryonic and postembryonic development of the japanese quail in three generations. it has been shown that the weakening of the earth's magnetic field by a factor of 1000 affects the formation of blood vessels in japanese quail embryos, in particular, causing a decrease in angiogenesis in seven-day-old embryos of both the first generation (f1) and the next two ones (f2 and f3). pat ... | 2020 | 32342321 |
| identification of the key molecular drivers of phosphorus utilization based on host mirna-mrna and gut microbiome interactions. | phosphorus is an essential mineral for all living organisms and a limited resource worldwide. variation and heritability of phosphorus utilization (pu) traits were observed, indicating the general possibility of improvement. molecular mechanisms of pu, including host and microbial effects, are still poorly understood. the most promising molecules that interact between the microbiome and host are micrornas. japanese quail representing extremes for pu were selected from an f2 population for mirna ... | 2020 | 32316683 |
| ileal transcriptome profiles of japanese quail divergent in phosphorus utilization. | phosphorus (p) is an essential component for all living beings. low p diets prompt phenotypic and molecular adaptations to maintain p homeostasis and increase p utilization (pu). knowledge of the molecular mechanisms of pu is needed to enable targeted approaches to improve pu efficiency and thus lower p excretion in animal husbandry. in a previous population study, japanese quail were subjected to a low p diet lacking mineral p and exogenous phytase. individual pu was determined based on total p ... | 2020 | 32316159 |
| prolactin-releasing peptide increases food intake and affects hypothalamic physiology in japanese quail (coturnix japonica). | prolactin-releasing peptide (prrp) increases food intake in birds, whereas it is a potent satiety factor in rodents and fish. the aim of this study was to determine the effects of central injection of prrp on feeding behaviors and hypothalamic physiology in juvenile japanese quail (coturnix japonica). intracerebroventricular injection of 1,692 pmol of prrp increased food intake for the first 90 min after injection but did not affect water intake. quail treated with prrp displayed more food and d ... | 2020 | 32279041 |
| anorexigenic effects of substance p in coturnix japonica. | substance p (sp) is an 11-amino acid tachykinin-related peptide that has anorexigenic effects in birds and mammals although the central mechanism is not well understood. hence, the objective was to identify appetite-associated hypothalamic mechanisms in japanese quail (coturnix japonica). seven days post-hatch, quail were intracerebroventricularly injected with 0, 0.25, 0.5 or 1.0 nmol of sp and monitored for 180 min. on a cumulative basis, quail that received 0.5 and 1.0 nmol of sp consumed les ... | 2020 | 32220396 |
| the effect of bee pollen on bone biomechanical strength and trabecular bone histomorphometry in tibia of young japanese quail (coturnix japonica). | it has been demonstrated in numerous studies that bee pollen supplementation shows numerous positive effects on health. however, its impact on bones is largely unknown. the purpose of this study was to investigate the effect of bee pollen supplementation on the tibia biomechanical properties and bone morphometric measures using japanese quail as an animal model. the experiment was arranged in a 2x2x2 factorial design, with sex, quail line (meat-type or egg-lying type), and bee pollen inclusion ( ... | 2020 | 32187215 |
| expression of transferrin and albumin in the sperm-storage tubules of japanese quail and their possible involvement in long-term sperm storage. | because of the presence of sperm storage tubules (ssts) in the utero-vaginal junction (uvj) in the oviduct, once ejaculated sperm enter the female reproductive tract, they can survive for a prolonged period in domestic birds; however, the specific mechanisms involved in sperm maintenance within the sst remain to be elucidated. in this study, we showed that transferrin (tf) and albumin (alb) are expressed in ssts. when uvj extracts were subjected to size-exclusion column chromatography, we obtain ... | 2020 | 32174770 |
| supplementation of various zinc sources modify sexual development and testicular igf family gene expression in pre-pubertal male japanese quail. | zinc plays an important role in the regulation of insulin-like growth factor-i (igf-i). igf system, in turn, has a key role in the development and functions of the reproductive organs. this research was performed to investigate the effects of different sources of zinc on igf-i gene expression and testicular development in pre-pubertal male japanese quail. a total of 512 unsexed day-old japanese quail chicks were randomly divided into 16 groups (4 dietary treatments × 4 replicates) and kept for 3 ... | 2020 | 32155471 |
| secretome of senescent adipose-derived mesenchymal stem cells negatively regulates angiogenesis. | nowadays, paracrine regulation is considered as a major tool of mesenchymal stem cell (msc) involvement in tissue repair and renewal in adults. aging results in alteration of tissue homeostasis including neovascularization. in this study, we examined the influence of replicative senescence on the angiogenic potential of adipose-derived mscs (ascs). angiogenic activity of conditioned medium (cm) from senescent and "young" ascs was evaluated in chorioallantoic membrane (cam) assay in ovo using jap ... | 2020 | 32151085 |
| effects of yeast (saccharomyces cerevisiae) probiotics supplementation on bone quality characteristics in young japanese quail (coturnix japonica): the role of sex on the action of the gut-bone axis. | the aim of the study was to investigate the changes in bone geometry, histological structure, and selected mechanical characteristics in young male and female japanese quails supplemented with saccharomyces cerevisiae. quails were fed a basal diet containing no yeast or a basal diet supplemented with 1.5% (15 g per 1 kg of diet) of inactive s. cerevisiae, for a period of 42 days. s. cerevisiae inclusion had no effect on bone weight, length, and density, diaphysis geometry (cross-sectional area, ... | 2020 | 32150981 |
| avian eggshell thinning caused by transovarian exposure to o,p'-ddt: changes in histology and calcium-binding protein production in the oviduct uterus. | reproductive disorders in birds are the most characteristic effects of ddt contamination of wildlife. experimental exposure of avian eggs to the estrogenic substance o,p'-ddt causes abnormal development of the reproductive tract (shortening of the left oviduct and aberrant development of the right oviduct) and eggshell thinning in mature birds, but it is still not known how eggshell thinning occurs in the abnormal oviduct. to fill this information gap, we examined the histology of the uterine pa ... | 2020 | 32147636 |
| prediction and optimization of slaughter weight in meat-type quails using artificial neural network modeling. | carcass yield of meat-type quails is strongly correlated with the weight of the birds at slaughter (slaughter weight [sw]; body weight at 45 d of age). moreover, prediction of superior animals for sw at the earlier stages of the rearing period is favorable for producers. therefore, the aim of the present study was to predict and optimize sw of japanese quails based on their early growth performances, sex, and egg weight as predictors through artificial neural network (ann) modeling. to construct ... | 2020 | 32115026 |