Publications

TitleAbstractYear(sorted ascending)
Filter
PMID
Filter
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 ...202032359583
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 ...202032357410
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 ...202032349174
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 ...202032347497
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 ...202032342321
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 ...202032316683
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 ...202032316159
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 ...202032279041
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 ...202032220396
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 ( ...202032187215
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 ...202032174770
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 ...202032155471
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 ...202032151085
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, ...202032150981
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 ...202032147636
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 ...202032115026
detoxification impacts of ascorbic acid and clay on laying japanese quail fed diets polluted by various levels of cadmium.a total number of 360 laying japanese quail (8 weeks of age) were randomly divided into 12 groups. birds in all groups had nearly the same average initial body weight. a factorial arrangement (4 × 3) was performed including four levels of dietary cadmium (cd) as cadmium chloride (0, 50, 100, and 150 mg/kg diet) and three levels of feed additives (without, 300 mg/kg ascorbic acid and 1.50% natural clay). results revealed that cd contaminated feed caused significant (p < 0.01) retardation in body ...202032106604
normative ocular data for juvenile and adult japanese quail (coturnix japonica).to obtain normative ocular data for japanese quail as they mature from juveniles to adults.202032100929
muscle hyperplasia in japanese quail by single amino acid deletion in mstn propeptide.mutation in myostatin (mstn), a negative regulator of muscle growth in skeletal muscle, resulted in increased muscle mass in mammals and fishes. however, mstn mutation in avian species has not been reported. the objective of this study was to generate mstn mutation in quail and investigate the effect of mstn mutation in avian muscle growth. recently, a new targeted gene knockout approach for the avian species has been developed using an adenoviral crispr/cas9 system. by injecting the recombinant ...202032098368
morpho-functional alterations in lymphocytes and erythrocytes of japanese quail due to prolonged in vivo exposure to heavy metal complexes.lead and cadmium are significant environmental pollutants that cause pathophysiological responses in many organs. heavy metal absorption into many tissues is very fast due to a pronounced affinity for metallothioneins.202032088554
di-(2-ethylhexyl) phthalate induced nephrotoxicity in quail (coturnix japonica) by triggering nuclear xenobiotic receptors and modulating the cytochrome p450 system.di-(2-ethylhexyl) phthalate (dehp), a plasticizer that is mainly used in the production of polyvinyl alcohol-containing chloride products, has attracted attention due to potential threats to human health and the environment. nevertheless, knowledge of dehp-induced nephrotoxicity is still limited. to explore the mechanism of dehp-induced nephrotoxicity, quail were treated with 0, 250, 500 and 1000 mg/kg dehp by oral gavage for 45 days. based on the results of histopathological analysis, dehp expo ...202032078881
effect of dietary supplementation of whey powder and bacillus subtilis on growth performance, gut and hepatic function, and muscle antioxidant capacity of japanese quail.this experiment was conducted to evaluate the effects of dietary supplementation of whey powder (wp), bacillus subtilis (bas), and their combination (mix) on growth performance, intestinal morphology, caecal microflora, hepatic gene expression, blood metabolites, and skeletal muscle antioxidant capacity in japanese quails. a total of 400 one-day-old japanese quails were randomly distributed to 20-floor pens (4 dietary treatments, 5 replications per treatment, 20 birds per pen). the birds were fe ...202032072684
the subacute toxicity of perfluorooctane sulfonate and/or perfluorooctanoic acid and legacy aqueous film-forming foams to japanese quail (coturnix japonica) chicks.as part of an effort to develop avian ecotoxicity information for poly- and perfluoroalkyl substances (pfas) including perfluorooctane sulfonate (pfos) and perfluorooctanoic acid (pfoa) associated with aqueous film-forming foam (afff) used by the department of defense, the subacute toxicity of pfos, pfoa, pfos + pfoa, 3m afff, and ansul afff to japanese quail (coturnix japonica) chicks was determined. ten-day-old japanese quail were administered treated feed for 5 d and then fed untreated feed f ...202032060944
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)- ...202033169693
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 ...202033142515
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 ...202033142436
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 ...202033140443
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 ...202033129445
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 ...202033097768
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 <  ...202033095104
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, ...202033084757
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 ...202033050290
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 ...202033038825
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 ...202032969077
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 ...202032967666
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 ...202032962208
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 ...202032961623
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 ...202032956867
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 ...202032954862
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 ...202032946023
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 ...202032930439
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 ...202032902318
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 ...202032884096
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 ...202032876139
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 ...202032868003
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 ...202032865111
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 ...202032858465
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 ...202032843363
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 ...202032842933
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 ...202032833096
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 ...202032823692
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 ...202032784306
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 ...202032779236
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 ...202032768925
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 ...202032756836
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 ...202032735801
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 ...202032734106
heritability of advertisement call properties of the japanese quail.the objective of this study was to investigate genetic variances and covariances among features of the male japanese quail advertisement call. duration of the first, second and third syllable, the length of interval 1 (between the first and the second syllable), interval 2 (between the second and the third syllable) and damping (extension of the third syllable) were measured as temporal properties of the call. spectral properties were peak frequencies of each syllable and the damping component. ...202031166371
age-related declines in ejaculate quality and sperm kinematics vary among strains of japanese quail (coturnix japonica).for successful breeding programs, it is important to quantify the useful period of a male's reproductive life and it is often done simply by measurement of semen quality. this information is lacking for japanese quail so we tested whether there is a decline in ejaculate quality and sperm kinematics with age, and whether the decline varies among strains. nine males (n = 9) from each of 5 strains (a, b, c, d and e) were subjected to 4 semen collections (n = 16 per male) at 8, 16, 26 and 36 weeks o ...202031693756
sterol-o acyltransferase 1 is inhibited by gga-mir-181a-5p and gga-mir-429-3p through the tgfβ pathway in endodermal epithelial cells of japanese quail.nutrients are utilized and re-constructed by endodermal epithelial cells (eecs) of yolk sac membrane (ysm) in avian species during embryonic development. sterol o-acyltransferase 1 (soat1) is the key enzyme to convert cholesterol to cholesteryl ester for delivery to growing embryos. during embryonic development, yolk absorption is concomitant with significant changes of soat1 mrna concentration and enzyme activity in ysm. presence of micrornas (mirnas) are observed in the embryonic liver and mus ...202031678270
effects of phytogenic feed additives, probiotic and mannan-oligosaccharides on performance, blood metabolites, meat quality, intestinal morphology, and microbial population of japanese quail.1. the aim of this experiment was to investigate the effects of ajwain (trachyspermum ammi) and dill (anethum graveolens) essential oils (aeo and deo, respectively), probiotic (pro) and mannan-oligosaccharides (mos) on the growth performance, serum metabolites, meat quality, intestinal morphology and microbial populations of japanese quail.2. a total of 375 one-day-old japanese quail were randomly allocated into five treatment groups with five replicates of 15 birds each for a 42 d feeding exper ...202031661976
uptake, deposition, and metabolism of triphenyl phosphate in embryonated eggs and chicks of japanese quail (coturnix japonica).the toxicokinetics of triphenyl phosphate (tphp) in vivo including the uptake, deposition, and biotransformation into the metabolite diphenyl phosphate (dphp) is presently reported in embryonated eggs and chicks of japanese quail. quail were dosed with tphp at 3 concentrations by air cell egg injection on embryonic day 0, followed by daily oral dosing after chicks hatched (5 d). vehicle-only exposed controls were also used. in dosed eggs, only 33% of the tphp remained 2 d after injection (no hep ...202031756765
assessment of the effects of early life exposure to triphenyl phosphate on fear, boldness, aggression, and activity in japanese quail (coturnix japonica) chicks.triphenyl phosphate (tphp) is an organophosphate ester (ope) used as a flame retardant (fr) and plasticizer. tphp has previously been shown to disrupt behaviour in fish and mammals, but to our knowledge, this is the first study on the behavioural effects of tphp in birds. early life stage japanese quail (coturnix japonica) were exposed to nominal doses of 0 ng/g (vehicle-control), 5 ng/g (low dose), 50 ng/g (mid dose), and 100 ng/g (high dose) tphp, both as embryos (via air cell injection prior ...202031841763
the effects of chronic lead exposure on the liver of female japanese quail (coturnix japonica): histopathological damages, oxidative stress and amp-activated protein kinase based lipid metabolism disorder.lead (pb) is one of the most toxic metals to human and wildlife. it also had multiple negative influences on birds with physical, neurological and hematological clinical signs. however, the impacts of lead on bird liver lipid metabolism are still unclear. in this study, female japanese quails were used to examine the effects of chronic lead exposure on liver histology, oxidative stress and ampk (amp-activated protein kinase) based lipid metabolism. quails were randomly divided into 5 groups and ...202031838232
atypical gene expression of neuroinflammatory and steroid related genes following injury in the photoperiodic japanese quail. 202031830471
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 ...202033136306
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 ...202031634978
effect of a diet containing date pits on growth performance, diet digestibility, and economic evaluation of japanese quail (coturnix coturnix japonica).this study was performed to investigate the effect of feeding different levels of date pits (dp) to growing japanese quails on growth performance, diet digestibility, blood parameters, carcass traits, and economical value of the farm production. a total of 204 1-day-old quail chicks were randomly divided into 4 groups (three replicates each). dp was chemically analyzed and used as 0%, 2%, 4%, and 6% to formulate 4 balanced experimental diets (control, dp-2, dp-4, and dp-6, respectively). the fee ...202031359353
effect of omega-3 rich diet on the response of japanese quails (coturnix coturnix japonica) infected with newcastle disease virus or avian influenza virus h9n2.this study was performed to evaluate the effects of omega-3 supplementation on growth performance, clinical signs, post-mortem lesions, haemagglutination inhibition (hi) antibody titres, gene expression and histopathology in quails (coturnix coturnix japonica) infected with newcastle disease virus (ndv) and avian influenza virus (aiv) h9n2. one hundred, 40-day-old male quails were divided into 5 groups: g1, fed a control basal diet; g2a, infected with ndv; g2b, infected with h9n2; g3a, infected ...202031712184
dietary supplementation of eucalyptus leaves enhances eggshell quality and immune response in two varieties of japanese quails under tropical condition.the effect of dietary supplementation of eucalyptus leaves (el) powder on productive performance and immune response in 2 varieties of japanese quail was investigated. a total of 180 twelve-week-old laying japanese quails from 2 color varieties (gray and white) were randomly assigned and distributed according to a completely randomized design in a 3 × 2 factorial arrangement (dietary treatment × variety) forming 6 subgroups (30 each). el were mixed with the diet in 3 levels (0, 0.1, and 0.2%). e ...202032036983
uptake, metabolism, and elimination of fungicides from coated wheat seeds in japanese quail (coturnix japonica).pesticides coated to the seed surface potentially pose an ecological risk to granivorous birds that consume incompletely buried or spilled seeds. to assess the toxicokinetics of seeds treated with current-use fungicides, japanese quail (coturnix japonica) were orally dosed with commercially coated wheat seeds. quail were exposed to metalaxyl, tebuconazole, and fludioxonil at either a low dose (0.0655, 0.0308, and 0.0328 mg/kg of body weight, respectively) or a high dose (0.196, 0.0925, and 0.098 ...202031977218
reduced environmental bacterial load during early development and gut colonisation has detrimental health consequences in japanese quail.gastrointestinal colonisation by commensal microbiota is essential for the health and well-being of the host. we aimed to evaluate the influence of a reduced bacterial load environment on microbiota development and maturation, and the possibility of targeted colonisation via at-hatch administration of a selected bacterial strain. japanese quail (coturnix japonica) were inoculated within 1 h of hatch with a freshly grown culture of a lactobacillus agilis isolate derived from a healthy adult quail ...202031970305
growth performance, hemato-biochemical indices, thyroid activity, antioxidant status, and immune response of growing japanese quail fed diet with full-fat canola seeds.dietary supplementation of full-fat canola seeds (ffcs) can be part of the global solution to the problem of incessant raise in feed cost. genetic improvement via plant breeding constantly introduces varieties of canola with higher content of unsaturated fatty acids and lower content of anti-nutritional factors. this experiment was conducted to evaluate the dietary inclusion effect of new mutant of ffcs on growth performance, carcass traits, blood metabolites, thyroid activity, antioxidant statu ...202031942694
negative effect of feeding with high energy diets on testes and metabolic blood parameters of male japanese quails, and positive role of milk thistle seed.in this study, it was aimed to investigate the changes in testicular tissue and cell count, testicular oxidative stress and some metabolic blood parameters of male broiler japanese quails fed with high energy diet and milk thistle (silybum marianum) seed. one hundred-twenty male 15-day-old japanese quail chicks were divided into 4 equal groups with 30 each. the applications in each group were repeated 3 times with 10 animals each. control group was fed with basal diet. milk thistle seed group wa ...202031927417
long term conjugated linoleic acid supplementation modestly improved growth performance but induced testicular tissue apoptosis and reduced sperm quality in male rabbit.conjugated linoleic acid (cla) is known for its multiple benefits including improvement of growth, increasing lean mass, and anti-carcinogenic effects. however, when used in long-term supplementations cla does not improve semen parameters in boar and bull and reduces fertility in japanese quails. the content of unsaturated fatty acids in dietary lipids plays a significant role in spermatogenesis owning the high proportion of unsaturated fatty acids in plasma membrane of sperms. whether cla plays ...202031923252
carcass characteristics, physicochemical attributes, and fatty acid and amino acid compositions of meat obtained from different japanese quail strains.the objective of the current study was to assess the carcass traits and meat quality in three different japanese quail strains. a total of 90 1-day-old japanese quail chicks of three different strains; 30 of each of white, black, and brown were used. quails were slaughtered at 10 weeks of age. carcass traits such as carcass weight and carcass yield were recorded. at 24 h postmortem, breast and leg meat samples were detached, vacuum packaged and stored at - 20 °c until meat quality, nutritional c ...202031301038
chronic cadmium exposure in japanese quails perturbs serum biochemical parameters and enzyme activity.cadmium is a heavy metal, toxic even in trace amounts and its biological function in the human body has not been described to date. it is assumed that cadmium manifests in dose-dependent genotoxic and cytotoxic effects on many organs and tissue types. in this study, we have analyzed the biochemical parameters in the serum of japanese quails (coturnix japonica) after chronic in vivo exposure to cadmium. adult animals were exposed to cadmium in the form of cdcl2 dissolved in water (0.20 mg/l) for ...202031111748
effect of dietary supplementation of bacillus subtilis spores on growth performance, oxidative status, and digestive enzyme activities in japanese quail birds.the present trial investigated the feeding effect of b. subtilis spores on growth performance, blood metabolites, antioxidative status, and digestive enzyme activities in growing quails. a total of 750 1-day-old japanese quail chicks were randomly allotted equally into five experimental groups: control (bs0) fed a maize-soybean basal diet with no additives, the others were supplemented with: b. subtilis spores with the levels of 1 × 103 (bs3), 1 × 105 (bs5), 1 × 107 (bs7), and 1 × 109 (bs9)/kg d ...202031485898
an early-life stage alternative testing strategy for assessing the impacts of environmental chemicals in birds.early-life stage (els) toxicity tests are recognized as an advancement over current testing methodologies in terms of cost, animal use, and biological relevance. however, standardized els tests are not presently available for some vertebrate taxa, including birds. the present study describes a japanese quail (coturnix japonica) els test that is a promising candidate for standardization and applies it to test 8 environmental chemicals (ethinylestradiol, benzo[a]pyrene, chlorpyrifos, fluoxetine, l ...202031449668
viral metagenomic analysis of japanese quail (coturnix japonica) with enteritis in the republic of korea.we performed viral metagenomics analysis of japanese quail affected with enteritis to elucidate the viral etiology. metagenomics generated 21,066,442 sequence reads via high-throughput sequencing, with a mean length of 136 nt. enrichment in viral sequences suggested that at least three viruses were present in quail samples. coronavirus and picornavirus were identified and are known as pathogens causing quail enteritis that match the observed morphology. abundant reads of coronavirus from quail s ...202134339120
Refresh
firstprev
...4142
nextlast
Displaying items 4101 - 4180 of 4180