| the metabolic rate of cultured muscle cells from hybrid coturnix quail is intermediate to that of muscle cells from fast-growing and slow-growing coturnix quail. | growth rate is a fundamental parameter of an organism's life history and varies 30-fold across bird species. to explore how whole-organism growth rate and the metabolic rate of cultured muscle cells are connected, two lines of japanese quail (coturnix coturnix japonica), one that had been artificially selected for fast growth for over 60 generations and a control line were used to culture myoblasts. in line with previous work, myoblasts from the fast growth line had significantly higher rates of ... | 2015 | 26002518 |
| effects of preincubation application of low and high frequency ultrasound on eggshell microbial activity, hatchability, supply organ weights at hatch, and chick performance in japanese quail (coturnix coturnix japonica) hatching eggs. | the aim of the current study was to establish the effects of preincubation application of low and high frequency ultrasound on egg weight loss, hatchability, supply organ weights, chick performance, and eggshell microbial activity in japanese quail (coturnix coturnix japonica). a total of 630 fresh eggs were randomly divided into 3 groups. treatments were no ultrasound but eggs were sprayed with benzalkonium chloride solution (b), 35 khz ultrasound applied for 30 min (u35), and 130 khz ultrasoun ... | 2015 | 25971949 |
| biochemical parameters in japanese quails coturnix coturnix japonica infected with coccidia and treated with toltrazuril. | the activity of aspartate aminotransferase, alanine aminotransferase and lactate dehydrogenase, total protein, albumin and cholesterol levels were determined in the blood serum of japanese quails infected with coccidia and treated with baycox (active ingredient: toltrazuril). lower levels of ast and alt activity were noted in treated birds regardless of the applied baycox dose. the biochemical changes observed in the blood serum of japanese quails point to coccidia-induced damage of digestive sy ... | 2015 | 25928913 |
| morinda citrifolia l. leaf extract as antibacterial salmonella typhimurium to increase productivity of quail (coturnix coturnix japonica). | the objective of this study was to apply effect of morinda citrifolia l. citrifolia l. leaf extract as antibacterial of salmonella typhimurium on mortality of day old quail (doq), egg production and hen day, hatchability of layer quail. this research was conducted at laboratory of microbiology and laboratory of poultry nutrition, faculty of animal science, bogor agricultural university and slamet quail farms cilangkap, sukabumi, west java, indonesia on march-july 2012. two hundred and forty head ... | 2014 | 25911847 |
| effect of in ovo injection of threonine on mucin2 gene expression and digestive enzyme activity in japanese quail (coturnix japonica). | a total of 540 japanese quail eggs were assigned to 9 treatments of 4 replicates to investigate the effect of in ovo injection of threonine (thr) on mucin2 (muc2) mrna expression and digestive enzyme activity. treatments were (non-injected) eggs and those in ovo injected with saline (0.05 or 0.1 ml) with or without thr (5 mg/ml) in two sites (in or under the air sac). on hatch day, 0.05 ml in ovo injected (under the air sac: tuas) hatchlings were divided into three groups based on nrc recommenda ... | 2015 | 25840843 |
| assessment of toxicity and coagulopathy of brodifacoum in japanese quail and testing in wild owls. | based on detection of hepatic residues, scavenging and predatory non-target raptors are widely exposed to second generation anticoagulant rodenticides (sgars). a small proportion, generally <10%, of tested birds are diagnosed as acutely poisoned. little is known, however, of sub-lethal effects of sgars, such as interaction of clotting capacity with traumatic injury. assessment of coagulation function of birds submitted live to wildlife rehabilitators or veterinarians may provide a means of estab ... | 2015 | 25827684 |
| interaction of specific temporal phase relations of circadian neural oscillations and long term photoperiodic responses in japanese quail, coturnix coturnix japonica. | specific temporal phase relations of neural oscillations are reported to regulate gonadal activity in many avian species but their interaction with photo-sexual response are still unclear. hence in the present study, 3week old japanese quail maintained in short days (experiment 1) received normal saline (sd control) or serotonin precursor 5-htp and dopamine precursor l-dopa injections at the interval of 12h (sd 12-h) for 13days. at 37week of age, one subgroup of sd 12-h received these drugs at t ... | 2015 | 25801549 |
| biology and pathology of caecal nematode subulura brumpti in japanese quails (coturnix coturnix japonica). | the occurrence of caecal nematode, subulura brumpti has become more common in quails being maintained in commercial farms in tamil nadu, india. two trials were carried out to study the biology and pathology of s. brumpti in quails. in the first trial, eight grower quails were divided into two groups (t1 and t2) comprising of four birds each. the birds belonged to the group t1 was infected with 20 cysts collected from beetle and birds of t2 group were kept as control. the beetle was identified as ... | 2015 | 25801262 |
| suppressive effects of long-term exposure to p-nitrophenol on gonadal development, hormonal profile with disruption of tissue integrity, and activation of caspase-3 in male japanese quail (coturnix japonica). | p-nitrophenol (pnp) is considered to be one of nitrophenol derivatives of diesel exhaust particles. pnp is a major metabolite of some organophosphorus compounds. pnp is a persistent organic pollutant as well as one of endocrine-disrupting compounds. consequently, bioaccumulation of pnp potentiates toxicity. the objectives of the current study were to assess in vivo adverse effects of long-term low doses of pnp exposure on reproductive system during development stage. twenty-eight-day-old male ja ... | 2015 | 25772865 |
| multifractal dimension and lacunarity of yolk sac vasculature after exposure to magnetic field. | several studies have reported about the effects of magnetic fields (mfs) on vascular tissue. extremely low frequency magnetic fields (elf-mfs) can promote either inhibition or stimulation of vasculogenesis and angiogenesis, depending upon the intensity and time of exposure to the mf. to investigate the possible effects of elf-mf on vascular processes, it is necessary to employ methods that allow parameterization of the vascular network. vascular network is a structure with fractal geometry; ther ... | 2015 | 25711525 |
| [the estimation of age-related sensitivity of the retinal pigment epithelium of japanese quail (coturnix japonica) to the light damage]. | the effect of blue light damage (445-455 nm, 4 j/cm2) to retinal pigment epithelium (rpe) subcellular structures was investigated in 4 age risk groups (9, 25, 40 and 52 weeks) of japanese quail coturnix japonica by light and electron microscopy. the indicator of biological aging of rpe was age-related accumulation of lipofuscin granules: 5-6-fold increase in their quantity increasing by 5-6 times in quails at 52 weeks. the main photo-induced changes observed after 24 h of the photo radiation wer ... | 2014 | 25669109 |
| avian egg odour encodes information on embryo sex, fertility and development. | avian chemical communication is a rapidly emerging field, but has been hampered by a critical lack of information on volatile chemicals that communicate ecologically relevant information (semiochemicals). a possible, but as yet unexplored, function of olfaction and chemical communication in birds is in parent-embryo and embryo-embryo communication. communication between parents and developing embryos may act to mediate parental behaviour, while communication between embryos can control the synch ... | 2015 | 25629413 |
| chromium-histidinate ameliorates productivity in heat-stressed japanese quails through reducing oxidative stress and inhibiting heat-shock protein expression. | an experiment was conducted to evaluate the effects of a histidine complex of chromium (chromium histidinate, crhis) on egg production, lipid peroxidation and the expression of hepatic nuclear factor kappa-light-chain-enhancer of activated b cells (nf-κb) and heat-shock proteins (hsps) in japanese quails (coturnix coturnix japonica) exposed to heat stress (hs). a total of 180 5-week-old female quails were reared either at 22°c for 24 h/d (thermoneutral, tn) or 34°c for 8 h/d (heat stress, hs) fo ... | 2015 | 25622754 |
| non-coding rna derived from a conservative subtelomeric tandem repeat in chicken and japanese quail somatic cells. | subtelomeres are located close to the ends of chromosomes and organized by tandemly repetitive sequences, duplicated copies of genes, pseudogenes and retrotransposons. transcriptional activity of tandemly organized dna at terminal chromosomal regions and the distribution of subtelomere-derived non-coding rnas are poorly investigated. here we aimed to analyze transcriptional activity of subtelomeric tandem repeat in somatic tissues and cultured cells of birds. we focused on tissue-specific differ ... | 2014 | 25610495 |
| sex-specific recombination maps for individual macrochromosomes in the japanese quail (coturnix japonica). | meiotic recombination in the japanese quail was directly studied by immunolocalization of mutl homolog 1 (mlh1), a mismatch repair protein of mature recombination nodules. in total, 15,862 crossovers were scored along the autosomal synaptonemal complexes in 308 meiotic nuclei from males and females. crossover frequencies calculated from mlh1 foci show wide similitude between males and females with slightly higher number of foci in females. from this analysis, we predict that the sex-averaged map ... | 2015 | 25596820 |
| increased lipid peroxidation occurs during development in japanese quail (coturnix japonica) embryos. | the growth of the avian embryo is paralleled by an exponential increase in the rate of whole-embryonic oxygen consumption, which potentially increases oxidative damage. age-related patterns of tissue lipid peroxidation were characterised in brain, liver and heart tissue of developing japanese quail (coturnix japonica) embryos between 9 and 15 d of age, over which embryo mass increased by a factor of 6. lipid peroxidation was quantified in each tissue by spectrophotometric measurement of malondia ... | 2015 | 25558957 |
| knee joint morphogenesis of the quail (coturnix japonica) embryo. | knee joint development and its morphogenetic events have been studied in human, chicken and other animal models and differences have been found in the pattern of the knee joint morphogenesis among the studied species. according to the small number of studies which have focused on the chronology of knee morphogenesis, a "morphogenetic timely pattern" is hard to suggest. quail is an animal model for which there is no information about knee joint morphogenesis. this study was planned to define the ... | 2015 | 27086443 |
| fowl typhoid (salmonella gallinarum) outbreak in japanese quail (coturnix coturnix japonica). | a fowl typhoid (ft) outbreak is reported in a flock of 400 japanese quail (coturnix coturnix japonica) at 91 days of age. of these, 222 died suddenly, and necropsy revealed swollen liver and spleen with off-white to yellowish granules and reddish small intestine mucosa. histopathology showed severe multifocal necrosis of liver and spleen (5/5), pulmonary congestion with macrophage infiltration in air capillaries (5/5), discrete interstitial nephritis (2/2), superficial necrosis of the intestinal ... | 2014 | 25518448 |
| cocaine-induced sensitization correlates with testosterone in male japanese quail but not with estradiol in female japanese quail. | research has indicated that gonadal hormones may mediate behavioral and biological responses to cocaine. estrogen, in particular, has been shown to increase behavioral responding to cocaine in female rats relative to male rats. the current study investigated the effect of cocaine on locomotor activity and hormonal correlates in male and female japanese quail (coturnix japonica). in japanese quail, circulating hormone levels can be manipulated without surgical alterations via modifying the photop ... | 2015 | 25456105 |
| cocaine induces state-dependent learning of sexual conditioning in male japanese quail. | state dependent learning effects have been widely studied in a variety of drugs of abuse. however, they have yet to be studied in relation to sexual motivation. the current study investigated state-dependent learning effects of cocaine in male japanese quail (coturnix japonica) using a sexual conditioning paradigm. cocaine-induced state-dependent learning effects were investigated using a 2×2 factorial design with training state as one factor and test state as the other factor. during a 14-day t ... | 2015 | 25447336 |
| supplementary dietary nitric oxide donor (sodium nitroprusside) or inhibitor (ng-nitro-l-arginine methyl ester) depressed growth performance and ovarian primordial and primary follicles in japanese quail (coturnix coturnix japonica) in a dose-dependent manner. | 1. the aim of the study was to determine the effects of dietary supplementation with sodium nitroprusside (snp), a nitric oxide (no) exogenous donor, and n(g)-nitro-l-arginine methyl ester (l-name), a no inhibitor, on growth performance, some biochemical parameters and ovarian primordial and primary follicles of quail. 2. a total of 480 japanese quail (coturnix coturnix japonica), one-day-old, including both males and females, were randomly allocated into one control group and 4 treatment groups ... | 2015 | 25421145 |
| glucocorticoid metabolism in the in ovo environment modulates exposure to maternal corticosterone in japanese quail embryos (coturnix japonica). | maternal effects have gained attention as a method by which mothers may alter the physiological condition and phenotype of their offspring based upon current environmental conditions. the physiological and phenotypic outcomes of glucocorticoid-mediated maternal effects have been extensively studied in a variety of vertebrates; however, the underlying mechanism is currently unclear. here, we injected tritiated corticosterone into the yolks of freshly laid japanese quail eggs (coturnix japonica) a ... | 2014 | 25392311 |
| maternally derived egg hormones, antibodies and antimicrobial proteins: common and different pathways of maternal effects in japanese quail. | avian eggs contain a variety of maternally-derived substances that can influence the development and performance of offspring. the levels of these egg compounds vary in relation to environmental and genetic factors, but little is known about whether there are correlative links between maternal substances in the egg underlying common and different pathways of maternal effects. in the present study, we investigated genetically determined variability and mutually adjusted deposition of sex hormones ... | 2014 | 25390303 |
| age-related changes in the myocardium of the japanese quail (coturnix japonica) as a model of accelerated aging of the heart. | | 2014 | 25371263 |
| effect of proctodeal gland foam on sperm kinetics in japanese quail (coturnix japonica). | the proctodeal gland of the male japanese quail produces thick foam that accompanies semen when it is transferred to the female. it is thought that this foam enhances fertilization by improving the motility of the sperm, but reports are conflicting because the effect of foam on sperm motility has only been assessed subjectively the velocity of individual sperm was not able to be measured accurately, variations were large, and small changes in motility could not be accurately evaluated. so, we te ... | 2015 | 25301249 |
| morphology and tissue distribution of four kinds of endocrine cells in the digestive tract of the chinese yellow quail (coturnix japonica). | to describe the tissue distribution, density, and the morphological characteristics of 4 kinds of endocrine cells in the digestive tract of the chinese yellow quail (coturnix japonica). | 2014 | 25291857 |
| cost-effective development of highly polymorphic microsatellite in japanese quail facilitated by next-generation sequencing. | next-generation sequencing technologies permit rapid and cost-effective identification of numerous putative microsatellite loci. here, from the genome sequences of japanese quail, we developed microsatellite markers containing dinucleotide repeats and employed these for characterisation of genetic diversity and population structure. a total of 385 individuals from 12 experimental and one wild-derived japanese quail lines were genotyped with newly developed autosomal markers. the maximum number o ... | 2014 | 25287074 |
| toltrazuril (baycox) treatment against coccidiosis caused by eimeria sp. in japanese quails (coturnix coturnix japonica). | coccidiosis is the most predominant parasitic disease affecting japanese quails (coturnix coturnix japonica) in commercial farms. coccidiosis as a subclinical infection is difficult to diagnose without parasitological examinations. oocysts of two eimeria species, e. bateri and e. tsunodai, were determined in the analysed quail flock. infected birds were administered baycox 2.5% at the dose of: group i--7 mg toltrazuril/kg bw per day provided in drinking water (1.5 ml/0.5 1 h2o) that was availabl ... | 2014 | 25286655 |
| a comparison of next generation sequencing technologies for transcriptome assembly and utility for rna-seq in a non-model bird. | de novo assembled transcriptomes, in combination with rna-seq, are powerful tools to explore gene sequence and expression level in organisms without reference genomes. investigators must first choose which high throughput sequencing platforms will provide data most suitable for their experimental goals. in this study, we explore the utility of 454 and illumina sequences for de novo transcriptome assembly and downstream rna-seq applications in a reproductive gland from a non-model bird species, t ... | 2014 | 25279728 |
| microanatomical study of embryonic gonadal development in japanese quail (coturnix japonica). | gonadal development of quail embryos was examined histologically using histological and histochemical methods. in the present study, quail embryos were studied at various stages of incubation period based on phases of gonadogenesis. germ cell migration was observed on day 3-4 but gonadal differentiation and gonadal function were observed on day 6-8 and day 11-14, respectively. during germ cell migration, quail primordial germ cells (qpgcs) were successfully detected in both left and right genita ... | 2014 | 25276431 |
| male-male sexual behavior in japanese quail: being "on top" reduces mating and fertilization with females. | male japanese quail (coturnix japonica) engage in vigorous same-sex sexual interactions that have been interpreted as aggressive behavior reflecting dominance relationships. the consequences of this behavior for reproductive success, and whether it is a form of competition over mating and fertilization, are unclear. three experiments were conducted to determine the effect of seeing or interacting with another male on a male's subsequent mating and fertilization success with females. a vigorous i ... | 2014 | 25264235 |
| the effect of different high-fat diets on erythrocyte osmotic fragility, growth performance and serum lipid concentrations in male, japanese quail (coturnix coturnix japonica). | poultry diets are formulated with additional animal fat or vegetable oils to improve growth rate and feed conversion efficiency. high-fat diet feeding in rats and fish has been shown to result in alterations in the phospholipid composition and cholesterol content of the erythrocyte membrane, in turn affecting erythrocyte osmotic fragility. in contrast, the few studies performed using high-fat diet feeding in avian species show no changes in erythrocyte osmotic fragility. this study made use of t ... | 2015 | 25244110 |
| selective constraint dominates the evolution of genes expressed in a novel reproductive gland. | one striking pattern in molecular evolution is that genes encoding proteins involved in reproduction tend to evolve rapidly. seminal fluid proteins frequently exhibit this pattern and directly affect multiple reproductive processes including enhancing sperm performance and mediating postmating sexual selection. here, we investigate molecular evolutionary patterns of genes expressed in the foam gland of japanese quail (coturnix japonica), a novel reproductive phenotype. foam provides an interesti ... | 2014 | 25193339 |
| plasma disposition and tissue residue of moxifloxacin in japanese quails (coturnix japonica) following different routes of administration. | the disposition kinetics and the plasma availability of moxifloxacin were investigated in japanese quails (coturnix japonica) following different routes of administration at 5 mg/kg body weight. tissue residue profiles (liver, kidney, lung and muscle) and plasma were also studied after multiple intramuscular and oral administrations of 5 mg/kg body weight, once daily for 5 consecutive days. following intravenous injection, plasma concentration-time curves were best described by a two-compartment ... | 2014 | 25185118 |
| effects of dietary inclusion of lentil byproduct on performance and oxidative stability of eggs in laying quail. | one hundred and sixty-eight 11-week-old laying quails (coturnix coturnix japonica) were fed one of the following three diets: (1) control: basal diet with no lentil (lens culinaris l.) byproduct; (2) inclusion of 10% lentil byproduct; (3) inclusion of 20% lentil byproduct. in the recent years, colour sorting machines are used in order to separate red lentils according to their colours. the goal is to select the items which are discoloured, not as ripe as required, or still with hull even after d ... | 2014 | 25180206 |
| temporal dynamic of adrenocortical and gonadal photo-responsiveness in male japanese quail exposed to short days. | the study evaluated whether different short-term endocrine testicular and adrenocortical responses to short photoperiod exposure can persist over time and particularly when birds exhibit spontaneous cloacal gland recovery. at 11 wk of age, 33 male japanese quail exposed to long photoperiod were switched to short photoperiod (8l:16d). another group of males was kept under long photoperiod (n = 11; ld quail). after 5 wk of short photoperiod exposure, quail were classified as nonresponsive or respo ... | 2014 | 25104133 |
| sensitivity of avian species to the aryl hydrocarbon receptor ligand 6-formylindolo [3,2-b] carbazole (ficz). | avian species differ in sensitivity to the toxic effects of dioxin-like compounds (dlcs) and recent reports have provided insight into the molecular mechanisms underlying this variability. the sensitivity of avian species to dlcs is associated with the identity of amino acids at positions 324 and 380 within the ligand-binding domain (lbd) of the aryl hydrocarbon receptor 1 (ahr1). 6-formylindolo [3,2-b] carbazole (ficz), a naturally produced photo-oxidation product of tryptophan, is a highly pot ... | 2014 | 25093689 |
| the effects on steroidogenesis and histopathology of adult male japanese quails (coturnix coturnix japonica) testis following pre-pubertal exposure to di(n-butyl) phthalate (dbp). | in the present study, we have investigated the effects of 30-day dietary (pre-pubertal) exposure to different doses (0 (control), 1, 10, 50, 200 and 400 mg/kg bodyweight/day) of di(n-butyl) phthalate (dbp) on leydig cells of adult male japanese quails by quantifying the transcript levels for p450 side-chain cleavage (p450scc), p450c17 (cyp17), and 3β- and 17β-hydroxysteroid dehydrogenase (hsd) using quantitative (real-time) polymerase chain reaction (qrt-pcr). in addition, the plasma testosteron ... | 2014 | 24983780 |
| pavlovian discriminative stimulus effects of methamphetamine in male japanese quail (coturnix japonica). | pavlovian drug discrimination (dd) procedures demonstrate that interoceptive drug stimuli may come to control behavior by informing the status of conditional relationships between stimuli and outcomes. this technique may provide insight into processes that contribute to drug-seeking, relapse, and other maladaptive behaviors associated with drug abuse. the purpose of the current research was to establish a model of pavlovian dd in male japanese quail. a pavlovian conditioning procedure was used s ... | 2014 | 24965811 |
| growth performance, meat quality traits, and genetic mapping of quantitative trait loci in 3 generations of japanese quail populations (coturnix japonica). | the current research was conducted to compare growth, carcass traits, ph, intramuscular collagen (imc) properties, and genetic bases of imc and carcasses (breast-muscle weight) of different lines and generations of adult males and females of japanese quail (coturnix japonica). forty-four quails (generation f0), 22 pharaoh (f-33) meat-type males and 22 standard (s-22) laying-type females, were crossed to produce the f1 hybrids generation. the f2 generation was created by mating one f1 male with o ... | 2014 | 24931963 |
| identification of chromosome instability in japanese quail (coturnix japonica). | 1. a study of the incidence of chromosome instability in the japanese quail as assessed by sister chromatid exchange (sce) and fragile site identification in chromosomes was conducted in two parent breeds and their f1 and f2 generations. 2. the mean incidence of sces was 6.02 ± 0.45 and the frequency of fragile sites was 1.17 ± 0.79. 3. there were moderately negative correlations of 0.51-0.64 between chromosome instability and fertility in the f1 and 0.10-0.23 in the f2. the hatch of fertilised ... | 2014 | 24898539 |
| a pilot study of the genetic variation of phosphorus utilization in young japanese quail (coturnix japonica). | this study estimated the genetic variance components of p utilization in japanese quail. a parental generation was assembled from an unselected random-bred japanese fattening quail line. seven sires and 14 dams were randomly selected, and each sire was paired with 2 dams to produce full and half sibs. a total of 200 unsexed 1-d-old quail with known pedigree were wing-banded and raised during the first 4 d posthatch in groups in floor pens on wood shavings and fed a preexperimental diet that was ... | 2014 | 24894527 |
| internal coincidence of serotonergic and dopaminergic oscillations modulates photo sexual responses of japanese quail, coturnix coturnix japonica. | specific temporal phase relation of neural oscillations appears to be the regulator of gonadal development in many seasonally breeding species. to find out the specific phase angle of two neural oscillations that triggers gonado-inhibitory or gonado-stimulatory response, and to test the internal coincidence model, sexually immature male japanese quail were administered with the serotonin precursor, 5-hydroxytryptophan and the dopamine precursor, l-dihydroxyphenylalanine at hourly intervals of 6, ... | 2014 | 24851411 |
| structure and evolution of the phasianidae mitochondrial dna control region. | the mitochondrial dna control region is an area of the mitochondrial genome which is non-coding dna. to infer the structural and evolutionary characteristics of phasianidae mitochondrial dna control region, the entire control region sequences of 34 species were analyzed. the length of the control region sequences ranged from 1144 bp (phasianus colchicus) to 1555 bp (coturnix japonica) and can be separated into three domains. the average genetic distances among the species within the genera varie ... | 2016 | 24617466 |
| comparative cytogenomics of poultry: mapping of single gene and repeat loci in the japanese quail (coturnix japonica). | well-characterized molecular and cytogenetic maps are yet to be established in japanese quail (coturnix japonica). the aim of the current study was to cytogenetically map and determine linkage of specific genes and gene complexes in japanese quail through the use of chicken (gallus gallus) and turkey (meleagris gallopavo) genomic dna probes and conduct a comparative study among the three genomes. chicken and turkey clones were used as probes on mitotic metaphase and meiotic pachytene stage chrom ... | 2014 | 24604153 |
| clinico-hematological and tissue changes induced by butachlor in male japanese quail (coturnix japonica). | the present experiment was executed to determine the pathological effects induced by concurrent feeding of butachlor (chloroacetanilide herbicide) in male japanese quail. for this purpose mature male quail about 4-5weeks of age were procured from the local market and randomly divided into six equal groups (a-f). butachlor was mixed in corn oil and administered orally for 30days using crop tube. four birds from each group were killed at day 10, 20 and 30 of the experiment and blood was collected ... | 2014 | 24581384 |
| cellular metabolic rates in cultured primary dermal fibroblasts and myoblast cells from fast-growing and control coturnix quail. | fibroblast cells have been extensively used in research, including in medicine, physiology, physiological-ecology, and conservation biology. however, whether the physiology of fibroblasts reflects the physiology of other cell types in the same animal is unknown. dermal fibroblasts are responsible for generating connective tissue and involved in wound healing, but generally, this cell type is thought to be metabolically inactive until it is required at the site of tissue damage. thus, one might q ... | 2014 | 24530798 |
| a method for fast assessment of op/cb exposure in the japanese quail (coturnix coturnix japonica) using combined esterases enzyme activity as biomarkers. | the aims of this study were to investigate the presence of different esterase activities in plasma and liver for japanese quail and to combine determination of both carboxylesterase and cholinesterase as biochemical biomarker in order to identify the effects of carbamate and organophosphate compounds exposure. carboxylesterase exhibits larger sensitivity to carbamate and organophosphate compounds than to cholinesterase and is present at higher levels. this permitted nature and distribution of ca ... | 2014 | 24527206 |
| long bone development in the japanese quail (coturnix coturnixjaponica) embryos. | the current study was undertaken to describe the main histological development stages of long bones (tibia and femur) from japanese quail (coturnix coturnix japonica) embryos. whole limbs or just tibia and femur of fifty japanese quail embryos of different ages were fixed and embedded in paraffin or spurr's resin. paraffin and semi-thin, respectively, were undertaken and examined with light microscopy. limb bud was established at day 5 of incubation. mesenchymal cells differentiated into chondro ... | 2013 | 24502147 |
| influence of animal age on body concentrations of minerals in japanese quail (coturnix japonica). | mathematical modelling of the relationships between mineral inputs and outputs would enable the prediction of mineral requirements of poultry under a wide range of conditions. to establish the feasibility of possible modelling of mineral requirements, the current study aimed to describe the individual mineral concentrations of whole bodies of quail over the life cycle from hatching to 70 days of age. quail were reared indoors without any restrictions that could limit growth. sampling of birds (n ... | 2014 | 24495232 |
| endothelin receptor b2 (ednrb2) is responsible for the tyrosinase-independent recessive white (mo(w) ) and mottled (mo) plumage phenotypes in the chicken. | a mutation that confers white plumage with black eyes was identified in the minohiki breed of japanese native chicken (gallus gallus domesticus). the white plumage, with a few partially pigmented feathers, was not associated with the tyrosinase gene, and displayed an autosomal recessive mode of inheritance against the pigmented phenotype. all f1 offspring derived from crosses with mottled chickens (mo/mo), which show characteristic pigmented feathers with white tips, had plumage with a mottled-l ... | 2014 | 24466053 |
| species-specific relative ahr1 binding affinities of 2,3,4,7,8-pentachlorodibenzofuran explain avian species differences in its relative potency. | results of recent studies showed that 2,3,4,7,8-pentachlorodibenzofuran (pecdf) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (tcdd) are equipotent in domestic chicken (gallus gallus domesticus) while pecdf is more potent than tcdd in ring-necked pheasant (phasianus colchicus) and japanese quail (coturnix japonica). to elucidate the mechanism(s) underlying these differences in relative potency of pecdf among avian species, we tested the hypothesis that this is due to species-specific differential bind ... | 2014 | 24434118 |
| identification of qtl for live weight and growth rate using dna markers on chromosome 3 in an f2 population of japanese quail. | the japanese quail (coturnix japonica) is an important agricultural species and is an animal model for genetic researches. this study was conducted to identify quantitative trait loci (qtl) affecting live weight and growth rate on chromosome 3 in quail. two strains of japanese quail including wild and white were crossed reciprocally and f1 generation was created. the birds from f2 generation were measured for growth traits and all of 472 birds (8 pairs from the parental strains, 34 f1 birds and ... | 2014 | 24385302 |
| oxya hyla hyla (orthoptera: acrididae) as an alternative protein source for japanese quail. | nutrient composition of the grasshoppers oxya hyla hyla showed that they are a rich nutrient source containing 687.7 g protein/kg of dry body weight. their antinutrient values fell within nutritionally acceptable values of the poultry bird coturnix japonica japonica (japanese quail). the most required essential amino acids and fatty acids were also present in sufficient amount. for feeding trial nine diets were formulated on an equal crude protein (230 g/kg) basis with grasshopper meal, fish mea ... | 2014 | 27355015 |
| morphometric identification, gross and histopathological lesions of eimeria species in japanese quails (coturnix coturnix japonica) in zaria, nigeria. | the objective of the study was to identify the species, gross and histopathological lesions of eimeria in japanese quails in zaria. a total of 400 fresh faecal samples were collected and 10 quail birds were purchased from a quail farm. the faecal samples were processed using simple floatation technique. oocysts shape indices of sporulated oocysts were determined. the intestines were observed for gross lesions and segments were analyzed using giemsa stain and haematoxylin and eosin stain and then ... | 2014 | 26464933 |
| [comparative evaluation of the effects of hypoxic gaseous mixtures varying in oxygen concentration on japanese quail embryogenesis]. | the paper presents the results of comparative characterization of the effects of low oxygen levels (10 ± 0.5 and 14.5 ± 0.5%) on developing organism. four-day old embryos of the japanese quail (coturnix coturnix japonica) were chosen for the object of investigation as this is the age when avians acquire their organs and systems. acute hypoxia (10 ± 0.5% oxygen) caused a general death of the embryos, and serious abnormalities of the eye and brain, and ectopy. embryos that developed in the low-oxy ... | 2014 | 26035993 |
| age-dependent change in the morphology of nucleoli and methylation of genes of the nucleolar organizer region in japanese quail coturnix japonica) model (temminck and schlegel, 1849) (galliformes: aves). | nucleoli are the product of the activity of nucleolar organizer regions (nor) in certain chromosomes. their main functions are the formation of ribosomal subunits from ribosomal protein molecules and the transcription of genes encoding rrna. the aim of the study was to determine the shape of nucleoli and analyse methylation in the gene rn28s in the spermatocytes of male japanese quail (coturnixjaponica) in two age groups. nucleoli were analysed in cells of the first meiotic prophase. their numbe ... | 2014 | 25916156 |
| post-testicular sperm maturation and identification of an epididymal protein in the japanese quail (coturnix coturnix japonica). | the role of the avian epididymis in post-testicular development and capacitation was examined to assess whether avian spermatozoa undergo any processes similar to those characteristic of mammalian sperm development. we found no evidence of a need for quail sperm to undergo capacitation and 90% of testicular sperm could bind to a perivitelline membrane and acrosome react. however, computer-assisted sperm analysis showed that 20% of testicular sperm from the quail were capable of movement and only ... | 2014 | 24298048 |
| effects of prestorage application of propolis and storage time on eggshell microbial activity, hatchability, and chick performance in japanese quail (coturnix coturnix japonica) eggs. | propolis, a resinous mixture produced by honeybees from substances collected from plants, has strong antibacterial and antifungal properties. the purpose of the current study was to establish the effects of prestorage application of propolis and storage time on eggshell microbial activity, egg weight loss, hatchability, and chick performance in quail hatching eggs. treatments were compared in a 2 × 5 factorial design with 2 different storage times (7 and 14 d) and 5 prestorage applications (cont ... | 2013 | 24235245 |
| effects of transovarian exposure to p,p'-ddt and p,p'-dde on avian reproduction using japanese quails. | in the 1950s to 1970s developed countries reported declines in populations of raptorial and fish-eating birds and dichlorodiphenyltrichloroethane (ddt) and its metabolites were considered causative substances because they accumulated significantly in the tissues of wild birds and animals. however, except for the estrogenic effects of o,p'-ddt, a minor component of commercial ddt, there has been no compelling evidence that ddt directly affects avian reproductive systems. to assess the possible im ... | 2013 | 24213010 |
| basic characterization of avian nk-lysin (nkl) from the japanese quail, coturnix japonica. | we identified an antimicrobial cationic peptide that was expressed in the natural killer cells and cytotoxic t-lymphocytes of japanese quail. the gene, designated cjnkl, was located downstream of aebp1l and pold2 in a region syntenic with the chicken genome. cjnkl comprised four exons, as does chicken ggnkl. the coding sequence in cjnkl was 411 bp long and exon 3 of cjnkl lacked 9 bp when compared to chicken ggnkl, but cjnkl and ggnkl were 81% identical at the nucleic acid level. the saposin lik ... | 2014 | 24206178 |
| scanning electron microscopic studies of the pecten oculi in the quail (coturnix coturnix japonica). | the main purpose of this study is to extend the microscopic investigations of the pecten oculi in the quail in order to add some information on the unresolved functional anatomy of this unique avian organ. the pecten oculi of the quail was studied by scanning electron microscopy. eighteen- to-twenty two highly vascularised accordion-like folds were joined apically by a heavily pigmented bridge of tissue, which holds the pecten in a fanlike shape, widest at the base. the structure of the double l ... | 2013 | 24198967 |
| sperm activation by heat shock protein 70 supports the migration of sperm released from sperm storage tubules in japanese quail (coturnix japonica). | systems for maintaining the viability of ejaculated sperm in the female reproductive tract are widespread among vertebrates and invertebrates. in birds, this sperm storage function is performed by specialized simple tubular invaginations called sperm storage tubules (ssts) in the uterovaginal junction (uvj) of the oviduct. although the incidence and physiological reasons for sperm storage in birds have been reported extensively, the mechanisms of sperm uptake by the ssts, sperm maintenance withi ... | 2014 | 24194572 |
| prenatal sensory experience affects hatching behavior in domestic chicks (gallus gallus) and japanese quail chicks (coturnix coturnix japonica). | species-typical developmental outcomes result from organismic and environmental constraints and experiences shared by members of a species. we examined the effects of enhanced prenatal sensory experience on hatching behaviors by exposing domestic chicks (n = 95) and japanese quail (n = 125) to one of four prenatal conditions: enhanced visual stimulation, enhanced auditory stimulation, enhanced auditory and visual stimulation, or no enhanced sensory experience (control condition). in general, acr ... | 2014 | 24122703 |
| production of functional gametes from cryopreserved primordial germ cells of the japanese quail. | the japanese quail (coturnix japonica) is a valuable bird as both an experimental animal, for a wide range of scientific disciplines, and an agricultural animal, for the production of eggs and meat. cryopreservation of pgcs would be a feasible strategy for the conservation of both male and female fertility cells in japanese quail. however, the effects of freeze-thaw treatment on viability, migration ability and germline transmission ability of quail pgcs still remain unclear. in the present stud ... | 2013 | 24077020 |
| a model for cryobanking female germplasm in japanese quail (coturnix japonica). | cryopreservation and transplantation of ovarian tissue can be used for cryobanking female germplasm of avian species. here we report a model of cryobanking ovarian tissue of japanese quail. ovaries of 1-wk-old quail chicks from the recessive white-breasted (wb) line were cryopreserved using a vitrification method. the cryopreserved tissue was warmed and transplanted orthotopically into ovariectomized, 1-wk-old female quail chicks from the homozygous wild-type qo line. at sexual maturation, recip ... | 2013 | 24046426 |
| the enantioselective pharmacokinetics metabolism of diniconazole in quail (coturnix coturnixs japonica). | the pharmacokinetics of diniconazole enantiomers in quail (coturnix coturnix japonica) were investigated by liquid chromatography-tandem mass spectrometry (lc-ms/ms). quails were exposed to racemic diniconazole in capsule by oral at dose of 10 mg/kg (body weight). the maximal concentrations observed in blood, heart, liver, and kidney were 3.18, 11.35, 12.32, 15.03 µg/g for s-diniconazole, and 1.13, 3.70, 6.00, 2.60 µg/g for r-diniconazole. the elimination of enantiomers all met the one-compartme ... | 2013 | 24009183 |
| targeted 13c enrichment of lipid and protein pools in the body reveals circadian changes in oxidative fuel mixture during prolonged fasting: a case study using japanese quail. | many animals undergo extended periods of fasting. during these fasts, animals oxidize a ratio of macronutrients dependent on the nutritional, energetic, and hydric requirements of the fasting period. in this study, we use japanese quail (coturnix coturnix japonica), a bird with natural intermediate fasting periods, to examine macronutrient use during a 6d fast. we raised groups of quail on isotopically labeled materials ((13)c-1-leucine, (13)c-u-glucose, or (13)c-1-palmitic acid) with the intent ... | 2013 | 23988480 |
| histomorphometrical and ultrastructural study of the effects of carbendazim on the magnum of the japanese quail (coturnix coturnix japonica). | the study investigated the effect of various doses of carbendazim on the morphology of the magnum of the japanese quail. no morphological changes were observed in the magnum in birds treated with carbendazim at doses of 25 mg/kg and 100 mg/kg bodyweight. a carbendazim dose of 400 mg/kg bodyweight was the lowest dose which caused morphological changes in the magnum. histologically, carbendazim caused pyknosis and glandular atrophy in the magnum mucosa. carbendazim also caused significant decrease ... | 2013 | 23902336 |
| developmental post-natal stress can alter the effects of pre-natal stress on the adult redox balance. | across diverse vertebrate taxa, stressful environmental conditions during development can shape phenotypic trajectories of developing individuals, which, while adaptive in the short-term, may impair health and survival in adulthood. regardless, the long-lasting benefits or costs of early life stress are likely to depend on the conditions experienced across differing stages of development. here, we used the japanese quail (coturnix coturnix japonica) to experimentally manipulate exposure to stres ... | 2013 | 23867229 |
| the ossification of the pelvic girdle and leg skeleton of the quail (coturnix coturnix japonica). | the onset of ossification centres of the pelvic girdle and leg skeleton of the quail in embryos and juvenile birds were studied. specimens, which were cleared and were stained with alcian blue and alizarin red s, were examined at the stereomicroscope. the ilium and the pubis began to ossify at the 8th day (e8), whereas the ischium at e9. perichondral ossification was observed at e6 in the femur, tibia and fibula. a secondary ossification centre was detected in the proximal epiphysis of the tibio ... | 2014 | 23834034 |
| ambient temperature and nutritional stress influence fatty acid composition of structural and fuel lipids in japanese quail (coturnix japonica) tissues. | in birds, fatty acids (fa) serve as the primary metabolic fuel during exercise and fasting, and their composition affects metabolic rate and thus energy requirements. to ascertain the relationship between fas and metabolic rate, a distinction should be made between structural and fuel lipids. indeed, increased unsaturation of structural lipid fas brings about increased cell metabolism, and changes in the fa composition of fuel lipids affects metabolic rate through selective mobilization and incr ... | 2013 | 23796822 |
| effect of dietary supplementation of vitamin e on production performance and some biochemical characteristics of cloacal foam in male japanese quail. | this experiment was conducted to investigate the effects of increasing the level of dietary supplementation of vitamin e (ve) on production performance and biochemical characteristics of cloacal foam in male japanese quail (coturnix coturnix japonica). a total of 225 male japanese quail chicks (day old) were randomly distributed to three dietary treatments for a period of 30 weeks. each treatment comprised of three replicates, each containing 25 chicks. the basal diet (t1) contained 12.30iuvekg( ... | 2013 | 23790648 |
| toxicity of pb-contaminated soil to japanese quail (coturnix japonica) and the use of the blood-dietary pb slope in risk assessment. | this study relates tissue concentrations and toxic effects of pb in japanese quail (coturnix japonica) to the dietary exposure of soil-borne pb associated with mining and smelting. from 0% to 12% contaminated soil, by weight, was added to 5 experimental diets (0.12 to 382 mg pb/kg, dry wt) and fed to the quail for 6 weeks. benchmark doses associated with a 50% reduction in delta-aminolevulinic acid dehydratase activity were 0.62 mg pb/kg in the blood, dry wt, and 27 mg pb/kg in the diet. benchma ... | 2014 | 23780874 |
| prenatal visual experience induces postnatal motor laterality in japanese quail chicks (coturnix coturnix japonica). | species-typical prenatal visual stimulation in avian species is a necessary component in the development of population level lateralized behaviors. this relationship suggests that species-typical developmental outcomes result from organismic and environmental constraints and experiences shared by members of a species. we examined the effects of prenatal visual experience on the development of turning bias and footedness in japanese quail chicks, a species which does not demonstrate a naturally o ... | 2014 | 23775638 |
| comparative pharmacokinetics of enrofloxacin, danofloxacin, and marbofloxacin after intravenous and oral administration in japanese quail (coturnix coturnix japonica). | a population approach was used to evaluate the pharmacokinetic parameters of 3 fluoroquinolones administered to japanese quail (coturnix coturnix japonica). healthy adult quail (n = 50) were divided into 3 groups, each administered a separate intravenous and oral dose of the compounded drug: enrofloxacin at 10 mg/kg (n = 18; 9 male, 9 female), danofloxacin at 10 mg/kg (n = 12; 6 male, 6 female), and marbofloxacin at 5 mg/kg (n = 20; 10 male, 10 female). a fourth group was used as a control (n = ... | 2013 | 23772453 |
| comparison of ventriculotomy closure with and without a coelomic fat patch in japanese quail (coturnix coturnix japonica). | removal of foreign bodies from the ventriculus in birds may necessitate ventriculotomy. complications with this intervention include leakage and adhesion formation. to investigate if the use of a coelomic fat patch and a tension-relieving suture in addition to a simple interrupted pattern would improve the healing process after ventriculotomy, 2 groups of 9 japanese quail (coturnix coturnix japonica) underwent ventriculotomy. in group 1, only simple-interrupted and tension-relieving sutures were ... | 2013 | 23772451 |
| microbiological response of japanese quail eggs to disinfection and location in the setter during incubation. | the aim of this study was to evaluate the effectiveness of ethyl alcohol (75%) disinfection of japanese quail (coturnix coturnix japonica) hatching eggs and analysis of microbial contamination of eggs during incubation, depending on their location in the setter. disinfected eggshells were found to have lower total bacteria (tbc) and fungi (tfc) count. concerning the vertical location of eggs (top, middle, bottom), disinfected eggs were characterized by similar values of the tbc (x = 1.54 log cfu ... | 2013 | 23767303 |
| immunolocalization of intermediate filaments and laminin in the oviduct of the immature and mature japanese quail (coturnix coturnix japonica). | this study describes the distribution of vimentin, desmin, smooth muscle actin (sma) and laminin in the oviduct of the immature and mature japanese quail. the cytoskeletal proteins vimentin, desmin and sma have been shown to be involved in cellular support, differentiation, migration and contractility. laminin is a major component of basement membranes. luminal epithelia in the infundibular and magnal regions of immature and mature birds exhibited strong vimentin immunoreactivity. luminal epithe ... | 2014 | 23731061 |
| norfloxacin drug induces reproductive toxicity and alters androgen receptor gene expression in testes and cloacal gland of male japanese quail (coturnix japonica). | in an attempt to investigate the reproductive toxicity of norfloxacin in japanese quail, male quail were given norfloxacin at 20 mg/kg body weight for 14 d. then reproductive function and androgen receptor (ar) gene expression was examined in treated and control birds. the results of the present study indicate that fertility, cloacal gland area, sperm concentration, and serum testosterone were reduced significantly (p < 0.05) on day 14 in the norfloxacin-treated birds. upregulation (p < 0.05) of ... | 2013 | 23720395 |
| fat absorption and deposition in japanese quail (coturnix coturnix japonica) fed a high fat diet. | dietary fat contributes significantly to the energy requirements of poultry. not all species are able to increase their absorptive capacity for fats in response to a high fat diet. the effects of a high fat diet (10% canola oil) on the lipid absorption and deposition in the liver, breast and thigh muscles of male and female japanese quail were investigated. thirty-eight japanese quail (coturnix coturnix japonica) were randomly divided into a high fat diet (hfd) and a standard diet (std) group. t ... | 2013 | 23718824 |
| the relationship of plumage colours with mc1r (melanocortin 1 receptor) and asip (agouti signaling protein) in japanese quail (coturnix coturnix japonica). | 1. the relationship of polymorphisms in the melanocortin 1 receptor (mc1r) and agouti signalling protein (asip) genes with plumage colour in japanese quail was investigated by cloning and sequencing the entire coding regions from black, white and maroon japanese quail embryos at 12 d of incubation. 2. three snps were identified in the mc1r coding region by multiple alignment of sequences from individuals with different plumage colours. a missense c/t mutation located at 169 bp within the open re ... | 2013 | 23639082 |
| peripubertal proliferation of progenitor cells in the preoptic area of japanese quail (coturnix japonica). | brain structures related to reproduction are thought to depend on the action of gonadal steroids acting either during early life (organizing irreversible effects) or adulthood (activating transient effects). more recently puberty has become a focus of attention and it was demonstrated that action of sex steroid hormones at this time plays a critical role in the final organization of brain and behavior. we studied by brdu immunohistochemistry the ontogeny from hatching to sexual maturity of a pre ... | 2013 | 23623814 |
| glyceryl trinitrate metabolism in the quail embryo by the glutathione s-transferases leads to a perturbation in redox status and embryotoxicity. | exposure of stage 9 quail (coturnix coturnix japonica) embryos to glyceryl trinitrate (gtn) induces malformations that were associated in previous studies with an increase in protein nitration. increased nitration suggests metabolism of gtn by the embryo. the goals of this study were to characterize the enzymes and co-factors required for gtn metabolism by quail embryos, and to determine the effects of in ovo treatment with n-acetyl cysteine (nac), a precursor of glutathione (gsh), on gtn embryo ... | 2013 | 23587908 |
| production of live offspring from testicular tissue cryopreserved by vitrification procedures in japanese quail (coturnix japonica). | cryopreservation of testicular tissue can be used for ex situ conservation of male germplasm of avian species. the possibility of using vitrification and transplantation of testicular tissue for fertility preservation and recovery was tested in japanese quail. testes were removed from 1-wk-old japanese quail; transfixed on acupuncture needles; equilibrated with dimethyl sulphoxide, ethylene glycol, and sucrose; plunged into liquid nitrogen; and stored in 2-ml straws. cryopreserved tissue was war ... | 2013 | 23575148 |
| catch-up growth in japanese quail (coturnix japonica): relationships with food intake, metabolic rate and sex. | the effects of early environmental conditions can profoundly affect individual development and adult phenotype. in birds, limiting resources can affect growth as nestlings, but also fitness and survival as adults. following periods of food restriction, individuals may accelerate development, undergoing a period of rapid "catch-up" growth, in an attempt to reach the appropriate size at adulthood. previous studies of altricial birds have shown that catch-up growth can have negative consequences in ... | 2013 | 23535902 |
| gonadotropin-inhibitory hormone (gnih), gnih receptor and cell signaling. | gonadotropin-inhibitory hormone (gnih) is an inhibitor of gonadotropin synthesis and release, which was originally identified in the hypothalamus of the japanese quail (coturnix japonica). the gnih precursor polypeptide encodes one gnih and two gnih related peptides (gnih-rp-1 and gnih-rp-2) in birds that share the same c-terminal lpxrfamide (x=l or q) motif. the receptor for gnih is thought to be the g protein-coupled receptor 147 (gpr147) which has been shown to couple predominantly through th ... | 2013 | 23499786 |
| winning and losing in public: audiences direct future success in japanese quail. | among vertebrates, winning a fight enhances the probability of future victories and vice versa and the role of post-conflict testosterone in mediating this 'winner effect' is widely accepted. in a series of staged fights of japanese quail (coturnix japonica) we tested both opponents' pre-fight and post-conflict testosterone, behavior and dominance status after returning to their social groups. we found that the presence of a familiar mixed-sex audience during the encounter modulated both the tes ... | 2013 | 23454001 |
| relationship between abdominal fat content and avian uncoupling protein gene expression in skeletal muscle of japanese quail coturnix japonica. | 1. the genetic architecture of the avian uncoupling protein (avucp) was investigated and the relationship between avucp gene expression and the amount of abdominal fat of japanese quail was determined by quantitative real-time pcr. 2. the japanese quail avucp gene consists of six exons and five introns. sequences of nucleotides and amino acids were 94·6% and 86·0% identical to those of the chicken avucp gene, and phylogenetic analysis showed that the japanese quail avucp gene consists of the sam ... | 2013 | 23444853 |
| expression of microrna and microrna processing machinery genes during early quail (coturnix japonica) embryo development. | microrna (mirna) are small regulatory rna molecules that are implicated in regulating and controlling a wide range of physiological processes including cell division, differentiation, migration, apoptosis, morphogenesis, and organogenesis. the aim of this study was to determine the expression pattern of 32 mirna and 18 mirna processing machinery genes during somite formation in quail embryos. the embryos were collected at stages hh (hamburger and hamilton) 4, 6, and 9 of embryo development (19, ... | 2013 | 23436530 |
| chromium histidinate protects against heat stress by modulating the expression of hepatic nuclear transcription factors in quail. | 1. this experiment was conducted to evaluate the effects of supplemental chromium histidinate (crhis) on performance and expressions of hepatic nuclear factors kappab, an enhancer (nf-κb) and an inhibitor (iκbα) of activated b cells in heat-stressed japanese quail (coturnix coturnix japonica). 2. a total of 180, 10-d-old japanese quail were allocated randomly into 6 groups in a 2 × 3 factorial arrangement. birds were reared either at 22°c for 24 h/d (thermoneutral, tn) or 34°c for 8 h/d (heat st ... | 2012 | 23398428 |
| pharmacokinetics of levofloxacin in japanese quails (coturnix japonica) following intravenous and oral administration. | 1. the pharmacokinetics of levofloxacin were investigated in japanese quails after a single dose of 10 mg/kg bw, given either intravenously or orally. 2. following intravenous administration, the mean value of distribution at steady state (vd(ss)), total body clearance (cl(tot)) and mean residence time (mrt) of levofloxacin were 1·25 l/kg, 0·39 l/h/kg and 2·72 h, respectively. 3. following oral administration of levofloxacin, the peak plasma concentration (c(max)) was 3·31 µg/ml and was achieved ... | 2012 | 23398423 |
| expression of intermediate filaments in the balbiani body and ovarian follicular wall of the japanese quail (coturnix japonica). | in the present study, we examined the distribution of 6 groups of intermediate filaments (ifs; cytokeratins, cks, vimentin, synemin, desmin, glial fibrillary acidic protein and lamins) in oocytes and follicular walls of the japanese quail (coturnix japonica) during their development using immunohistochemical and ultrastructural techniques. a distinctly vimentin- and synemin-positive balbiani body, which is a transient accumulation of organelles (mitochondria, golgi complex and endoplasmic reticu ... | 2013 | 23391820 |
| evaluation of the efficacy and safety of single administration of 4.7-mg deslorelin acetate implants on egg production and plasma sex hormones in japanese quail (coturnix coturnix japonica). | to evaluate the effects of 4.7-mg deslorelin acetate implants on egg production and plasma concentrations of 17β-estradiol and androstenedione in japanese quail (coturnix coturnix japonica) over 180 days and assess safety of the implants in quail via gross and histologic examination. | 2013 | 23363360 |
| avian high-dose toxicity of cyanobacterial biomass. | previous studies using oral administration of environmentally relevant doses of cyanobacterial biomass containing microcystins (mcs) induced only sub-lethal effects in experimental birds. therefore, the objective of this study was to obtain data on avian high-dose toxicity of mcs and compute ld50, if possible, following the natural oral route of administration. | 2012 | 23353861 |
| risk of combined exposure of birds to cyanobacterial biomass containing microcystins, acetylcholinesterase inhibitor and anticoagulant. | the objective of this study was to examine the hypothesis that a combination of cyanobacterial biomass containing microcystins, acetylcholinesterase inhibitor and anticoagulant can enhance avian toxic effects produced by single exposures only. | 2012 | 23353860 |
| risk of single and combined exposure of birds to non-steroidal anti-inflammatory drugs and lead. | pharmaceuticals and heavy metals such as diclofenac and lead, respectively, have been identified as environmental contaminants toxic to birds and posing serious threats to declining populations of raptors worldwide. the aim of the present study was to test the hypothesis that a sublethal combination of non-steroidal anti-inflammatory drugs and lead induces more pronounced effects than single exposures in birds. | 2012 | 23353858 |
| post-hatch changes in the immunoexpression of desmin, smooth muscle actin and vimentin in the testicular capsule and interstitial tissue of the japanese quail (coturnix coturnix japonica). | the post-hatch development of immunoreactivity to desmin, smooth muscle actin (sma) and vimentin in the testicular capsule and interstitial tissue of day-old to adult quails was described in this study. the tunica albuginea of the testicular capsule was composed mainly of myoid cells. a zonal arrangement of desmin and sma immunostaining was observed in myoid cells of the tunica albuginea in 1- to 24-day-old quails. immunostaining for sma and desmin was uniform in the tunica albuginea of adult bi ... | 2013 | 23351155 |
| egg-laying substrate selection for optimal camouflage by quail. | camouflage is conferred by background matching and disruption, which are both affected by microhabitat. however, microhabitat selection that enhances camouflage has only been demonstrated in species with discrete phenotypic morphs. for most animals, phenotypic variation is continuous; here we explore whether such individuals can select microhabitats to best exploit camouflage. we use substrate selection in a ground-nesting bird (japanese quail, coturnix japonica). for such species, threat from v ... | 2013 | 23333313 |
| pre- and post-natal stress have opposing effects on social information use. | theoretical models of social learning predict that animals should copy others in variable environments where resource availability is relatively unpredictable. although short-term exposure to unpredictable conditions in adulthood has been shown to encourage social learning, virtually nothing is known concerning whether and how developmental conditions affect social information use. unpredictable food availability increases levels of the stress hormone corticosterone (cort). in birds, cort can be ... | 2013 | 23325738 |