| leukocyte numbers in hemorrhaged japanese quail after microwave irradiation in ovo. | 1. coturnix coturnix japonica eggs were exposed to 2.45-ghz continuous wave microwave radiation at an incident power density of 5 mw/cm2 (and a specific rate of 4 mw/g) during the first 12 days of embryogeny. after hatching, hematological changes in response to an acute hemorrhage were measured in exposed and nonexposed (control) juveniles of both sexes. 2. exposure did not affect erythroid cell numbers either before or after hemorrhage. 3. exposure affected the recovery of lymphocyte and hetero ... | 2010 | 2887391 |
| a review of the nutrition of japanese quail. | | 2016 | 4926520 |
| growth response to chronic beta agonist feeding and mature carcass characteristics of quail (coturnix coturnix japonica) selected for high and low body densities. | a study was conducted to determine the effect of long-term feeding of a beta agonist (cimaterol) on female japanese quail. quail used were from lines selected for high (hd) and low (ld) body density from a randombred population. dietary treatments consisted of 1) the basal feed, 2) the basal feed containing .5 ppm, or 3) 1.0 ppm of the beta agonist. the treatment period for the six experimental groups extended from 14 to 94 days of age. weight gains to 49 days and live weights at 94 days of age ... | 2008 | 2575254 |
| comparison of pedigreed and nonpedigreed randombred control systems for use with artificial selection in the japanese quail. | the performance characteristics of six replicate sublines of a randombred control, three pedigreed (p) and three nonpedigreed (np), were studied to see if the np mating system could be used as a method for maintaining a randombred control for selection experiments. each subline was maintained with 32 single-pair matings, with 64 offspring placed each generation for each line. brother x sister matings were avoided in the p but not in the np system. the np chicks were pedigreed in order to determi ... | 2010 | 3405913 |
| blockade of photoperiodically induced testicular growth by hypothalamic deafferentation in japanese quail (coturnix coturnix japonica). | | 2015 | 4442691 |
| forms of vitamin a and of carotenoids in tissues, blood serum and yolk of eggs from cotournix coturnix japonica fed -apo-carotenals. | | 2016 | 5081680 |
| light- and electron-microscopic studies on the secretory cytology of the adenohypophysis of the japanese quail, coturnix coturnix japonica. | the effects of thyroidectomy, adrenalectomy, and castration on the pars distalis of male japanese quail, and of injection of lh-rh on sexually inactive females, were investigated by light and electron microscopy. correlation between light and electron microscopy was attained by use of alternate thin and thick sections. six types of secretory cells were identified and the ultrastructural characteristics described. putative endocrine functions have been designated on the basis of responses to expe ... | 1996 | 167970 |
| towards the conservation of endangered avian species: a recombinant west nile virus vaccine results in increased humoral and cellular immune responses in japanese quail (coturnix japonica). | west nile virus (wnv) arrived in north america in 1999 and is now endemic. many families of birds, especially corvids, are highly susceptible to wnv and infection often results in fatality. avian species susceptible to wnv infection also include endangered species, such as the greater sage-grouse (centrocercus uropbasianuts) and the eastern loggerhead shrike (lanius ludovicianus migrans). the virus has been shown to contribute towards the likelihood of their extinction. although a clear and pres ... | 2013 | 23825633 |
| the underestimated role of olfaction in avian reproduction? | until the second half of the 20th century, it was broadly accepted that most birds are microsmatic if not anosmic and unable to detect and use olfactory information. exceptions were eventually conceded for species like procellariiforms, vultures or kiwis that detect their food at least in part based on olfactory signals. during the past 20-30 years, many publications have appeared indicating that this view is definitely erroneous. we briefly review here anatomical, electrophysiological and behav ... | 2008 | 18804490 |
| neuropeptidomic analysis of the embryonic japanese quail diencephalon. | endogenous peptides such as neuropeptides are involved in numerous biological processes in the fully developed brain but very little is known about their role in brain development. japanese quail is a commonly used bird model for studying sexual dimorphic brain development, especially adult male copulatory behavior in relation to manipulations of the embryonic endocrine system. this study uses a label-free liquid chromatography mass spectrometry approach to analyze the influence of age (embryoni ... | 2010 | 20298575 |
| multilevel selection with kin and non-kin groups, experimental results with japanese quail (coturnix japonica). | an experiment was conducted comparing multilevel selection in japanese quail for 43 days weight and survival with birds housed in either kin (k) or random (r) groups. multilevel selection significantly reduced mortality (6.6% k vs. 8.5% r) and increased weight (1.30 g/mg k vs. 0.13 g/mg r) resulting in response an order of magnitude greater with kin than random. thus, multilevel selection was effective in reducing detrimental social interactions, which contributed to improved weight gain. the ob ... | 2013 | 23730755 |
| endothelin receptor b2 (ednrb2) gene is associated with spot plumage pattern in domestic ducks (anas platyrhynchos). | endothelin receptor b subtype 2 (ednrb2) is a seven-transmembrane g-protein coupled receptor. in this study, we investigated ednrb2 gene as a candidate gene for duck spot plumage pattern according to studies of chicken and japanese quail. the entire coding region was cloned by the reverse transcription polymerase chain reaction (rt-pcr). sequence analysis showed that duck ednrb2 cdna contained a 1311 bp open reading frame and encoded a putative protein of 436 amino acids residues. the transcript ... | 2015 | 25955279 |
| review: evolution of gnih and related peptides structure and function in the chordates. | discovery of gonadotropin-inhibitory hormone (gnih) in the japanese quail in 2000 was the first to demonstrate the existence of a hypothalamic neuropeptide inhibiting gonadotropin release. we now know that gnih regulates reproduction by inhibiting gonadotropin synthesis and release via action on the gonadotropin-releasing hormone (gnrh) system and the gonadotrope in various vertebrates. gnih peptides identified in birds and mammals have a common lpxrf-amide (x = l or q) motif at the c-terminus a ... | 2014 | 25177268 |
| [the effects of the plant growth regulator 3-benzylbenzothiazolium bromide on growth processes in japanese quail]. | | 2011 | 3142142 |
| experimental cardiac necrosis in the japanese quail (cotournix cotournix). | | 2016 | 5023330 |
| monoamine fluorescence in the median eminence of the japanese quail, coturnix coturnix japonica, following medial basal hypothalamic deafferentation. | monoamine fluorescence was examined in the ventral hypothalamus of the japanese quail, coturnix coturnix japonica after medial basal hypothalamic deafferentation. in sham-operated control birds, numerous yellow-green fluorescent fibers were observed in the median eminence and the nucleus tuberis. in the area of the paraventricular organ, a number of fluorescent fibers and cell bodies were observed. in birds with deafferented hypothalami, fluorescence disappeared both in the median eminence and t ... | 1995 | 173465 |
| evaluation of plasma (1-->3) beta-d-glucan concentrations in birds naturally and experimentally infected with aspergillus fumigatus. | avian aspergillosis, most often caused by aspergillus fumigatus, is a common and devastating disease affecting a range of bird species. early diagnosis is difficult and often unreliable. the current study evaluated the utility of measuring (1-->3)-beta-d-glucan (bg) concentrations in avian plasma samples to aid in the diagnosis of aspergillosis. we evaluated a commercially available bg assay (fungitell, beacon diagnostics) using 178 plasma samples from naturally infected, experimentally infected ... | 2012 | 22545545 |
| activity and safety of inhaled itraconazole nanosuspension in a model pulmonary aspergillus fumigatus infection in inoculated young quails. | pulmonary aspergillosis is frequently reported in parrots, falcons, and other birds held in captivity. inhalation is the main route of infection for aspergillus fumigatus, resulting in both acute and chronic disease conditions. itraconazole (itra) is an antifungal commonly used in birds, but its administration requires repeated oral dosing, and the safety margin is narrow. to investigate the efficacy of inhaled itra, six groups of ten young quails (coturnix japonica) were inoculated intratrachea ... | 2015 | 25790942 |
| an avian coronavirus in quail with respiratory and reproductive signs. | an avian coronavirus was detected in pools of lungs, tracheas, female reproductive tracts, kidneys, and enteric contents from quail (coturnix coturnix japonica) and laying hen flocks, with and without infectious bronchitis (ib)-like signs, cohoused in farms located in two states of southeastern brazil during 2009-2010. although avian metapneumovirus subtype b was found in two layers samples, newcastle disease virus was not found in quail or in hens. based on dna sequences for the 3'-untranslated ... | 2013 | 24689189 |
| cryptosporidium spp. in quails (coturnix coturnix japonica) in henan, china: molecular characterization and public health significance. | the prevalence of cryptosporidium spp. was investigated in scale quail (coturnix coturnix japonica) farms in henan province, china between september 2006 and august 2007. one thousand eight hundred and eighteen fecal samples from 47 quail farms in five areas were collected for the examination of cryptosporidium oocysts. the overall prevalence of cryptosporidium was 13.1% (95% ci 13.1±1.6%) (29 of 47 farms), with 72-100-day-old quails having the highest prevalence (23.6%, 95% ci 23.6±2.6%) (χ(2)= ... | 2012 | 22377447 |
| heart targeting of retroviral expression in avian embryos: a species-independent phenomenon. | a replication-incompetent retroviral vector derived from spleen necrosis virus (snv), in which the viral structural genes gag, pol, and env were replaced with the bacterial β-galactosidase gene lacz, was used to infect embryos from outbred and inbred chicken lines, japanese quail and duck between embryonic day 0 and 13. lacz expression was restricted to a few organs or cell types, and this distribution was not influenced by the different routes of inoculation tested but was specified by the age ... | 1995 | 28305962 |
| nigella sativa (black cumin seed) as a biological detoxifier in diet contaminated with aflatoxin b1. | aflatoxin b1 (afb1 ) is a common feed contaminant that adversely affects bird performance and product quality. a total of 600 7-day-old quail chicks were randomly allotted to eight experimental groups in a completely randomized design with five replicate pens and 15 quails per pen. experimental treatments including two levels of afb1 (0 and 2.5 mg/kg) and 4 levels of nigella sativa (ns) (0, 0.5, 1.0 and 1.5% of diet) were offered from 7 to 35 days of age to quail chicks. although feeding of afb1 ... | 2016 | 27553624 |
| effectiveness of phytogenic feed additive as alternative to bacitracin methylene disalicylate on hematological parameters, intestinal histomorphology and microbial population and production performance of japanese quails. | this study was conducted to evaluate the effects of phytogenic additive and antibiotic growth promoter in laying japanese quails. one hundred and sixty five quails were divided into three groups of 5 replicates and 11 quails (8 females and 3 males) in each replicate. treatment 1 was fed control diet, treatment 2 was fed control diet supplemented with 0.05% bacitracin methylene disalicylate as antibiotic growth promoter and treatment 3 was fed control diet supplemented with 0.1% phytogenic feed a ... | 2016 | 27189636 |
| effect of a single polymorphism in the japanese quail nk-lysin gene on antimicrobial activity. | nk-lysins are cationic peptides that play important roles in host protection, and are an important constituent of innate immunity. we identified nine single-nucleotide polymorphisms (snps) in the nk-lysin open reading frame (orf) from 32 japanese quails in six strains: a, b, nd, k, p, and y. the g to a substitution at nucleotide position 272 in the orf resulted in a gly (g) to asp (d) amino acid substitution (cj31g and cj31d alleles). the cj31d allele was detected in p (frequency 0.76) and y (fr ... | 2016 | 26472627 |
| effects of recombinant lycopene dietary supplement on the egg quality and blood characteristics of laying quails. | this study was conducted to determine the effect of dietary supplement of bacterial lycopene (bl) produced by escherichia coli on the egg quality and blood characteristics of laying quails. the antioxidant activity measurement showed that bl exhibited 100% 1,1-diphenyl-2-picrylhydrazyl (dpph) scavenging capacity at a concentration of 4.65 μg/ml, which was more effective than butylated hydroxytoluene (bht) and commercial lycopene (cl). moreover, seven dietary groups of laying quails consisting of ... | 2015 | 26100321 |
| unusual coliranuloma in very young japanese quail chick. | a commercial japanese quail farmer reported death from 8 to 30% in three different flocks of 3 days old age, 3 weeks old age and 4 weeks old age of total flock size 18800. investigation was under taken to find out the cause of death. post mortem examination followed by bacteriological, virological and histopathological examinations revealed spontaneous colibacillosis. e. coli serotypes o24, o6 and o128 were isolated in pure culture. isolates were strong congo red binder and sensitive to enterofl ... | 2013 | 24517033 |
| immunomodulation and hormonal disruption without compromised disease resistance in perfluorooctanoic acid (pfoa) exposed japanese quail. | this study evaluated the impact of oral perfluorooctanoic acid (pfoa) on japanese quail at concentrations found in american and belgian workers at pfoa manufacturing facilities. three arms of the immune system were tested; t cell, b cell, and innate immunity. after 6 weeks exposure, quail were challenged with e. coli infection to test the ultimate measure of immunotoxicity, disease resistance. the t cell response was lower in the high exposure groups. antibody mediated, and innate immune respons ... | 2013 | 23639742 |
| response of restraint stress-selected lines of japanese quail to heat stress and escherichia coli challenge. | japanese quail selected for divergent corticosterone response to restraint stress were evaluated for their susceptibility to heat stress and challenge with escherichia coli. these quail lines are designated as high stress (hs), low stress (ls), and the random-bred control (cs) lines. heat stress (35°c, 8 h/d) began at 24 d until the end of the study at 39 d. birds were challenged with an aerosol spray containing 2 × 10(9) cfu of e. coli at 25 and 32 d. at 38 d, the surviving birds were necropsie ... | 2013 | 23436510 |
| pathology and tissue distribution of an lpai h5n8 of north american lineage isolated from an outbreak in commercial japanese quail (coturnix c. japonica) in the central valley of california. | this report describes the pathology and tissue distribution of avian influenza (ai) antigens by immunohistochemistry (ihc) in the tissues of commercial layer quail from a natural outbreak of low pathogenic avian influenza (lpai) h5n8. lpai virus h5n8 of north american lineage was diagnosed in commercial japanese quail hens ( coturnix coturnix japonica) in california based on serology, reverse-transcriptase real-time polymerase chain reaction, virus isolation, and sequencing. the sudden increase ... | 2017 | 28301241 |
| diagnosis and control of a lpai h5n8 outbreak in a japanese quail (coturnix coturnix japonica) commercial flock in the central valley of california. | in april 2014 an outbreak of low pathogenic avian influenza h5n8 north american genetic lineage was diagnosed in a commercial quail operation in stanislaus county, california. sudden increase in mortality prompted the submission of 20 japanese quail hens (coturnix c. japonica) to the california animal health and food safety laboratory, turlock branch. oropharyngeal and cloacal swabs tested positive for influenza a virus h5n8 by real-time reverse transcription-polymerase chain reaction. the virus ... | 2015 | 26473689 |
| [radiation situation prognosis for deep space: reactions of water and living systems to chronic low-dose ionizing irradiation]. | the authors review the findings of researches into the effects of low-dose ionizing irradiation on diverse biological objects (embryonic japanese quails, aspergillus niger, spirostomum ambiguum ehrbg., mesenchymal stem cells from mouse marrow, dry higher plants seeds, blood lymphocytes from pilots and cosmonauts). model experiments with chronic exposure to ionizing radiation doses comparable with the measurements inside orbital vehicles and estimations for trips through the interplanetary space ... | 2013 | 23700619 |
| susceptibility and intra-species transmission of the h9n2 g1 prototype lineage virus in japanese quail and turkeys. | avian influenza viruses of the h9n2 subtype have circulated in the poultry population in asia, far and middle east since the mid-1990 s. one of the most widespread lineages established in poultry is the g1 lineage. this lineage has undergone further evolution and reassortment since its first detection in 1997 and g1-like h9n2 viruses still circulate. in this study we have investigated the susceptibility of quail and turkeys to the h9n2 g1-lineage prototype strain (a/quail/hong kong/g1/97). conta ... | 2013 | 23597652 |
| a model for treating avian aspergillosis: serum and lung tissue kinetics for japanese quail (coturnix japonica) following single and multiple aerosol exposures of a nanoparticulate itraconazole suspension. | aspergillosis is frequently reported in parrots, falcons and other birds held in captivity. inhalation is the main route of infection for aspergillus fumigatus, resulting in both acute and chronic disease conditions. itraconazole (itra) is an antifungal commonly used in birds, but administration requires repeated oral dosing and the safety margin is narrow. we describe lung tissue and serum pharmacokinetics of a nanoparticulate itra suspension administered to japanese quail by aerosol exposure. ... | 2013 | 23815436 |
| c-terminal amino acids 471-507 of avian hepatitis e virus capsid protein are crucial for binding to avian and human cells. | the infection of chickens with avian hepatitis e virus (avian hev) can be asymptomatic or induces clinical signs characterized by increased mortality and decreased egg production in adult birds. due to the lack of an efficient cell culture system for avian hev, the interaction between virus and host cells is still barely understood. in this study, four truncated avian hev capsid proteins (orf2-1 - orf2-4) with an identical 338aa deletion at the n-terminus and gradual deletions from 0, 42, 99 and ... | 2016 | 27073893 |
| quails are resistant to infection with neospora caninum tachyzoites. | the aim of this study was to characterize the role of quails (coturnix coturnix japonica) as intermediate hosts for neospora caninum. fifty-eight 20-day old quails were individually identified with numbered rings and kept in cages adequate for the species. the birds were fed commercial feed and distilled water ad libitum. they were weighed daily during the first month and every seven days from then on. the birds were randomly distributed into 3 groups; 40 quails (group a) and 8 quails (group b) ... | 2013 | 24041486 |
| inflammatory marker profiles in an avian experimental model of aspergillosis. | aspergillosis is a common infection in avian species, but can be a challenge to diagnose. inflammatory markers have been successfully used in mammals for diagnostic and monitoring purposes of various diseases. the aim of this study was to identify inflammatory markers that could aid in the diagnosis of aspergillosis in an avian species. five-week-old japanese quail were infected experimentally with aspergillus fumigatus, and inflammatory markers were measured in plasma. in addition, lung tissues ... | 2013 | 23651177 |
| development of anti-helicobacter pylori immunoglobulins y (igys) in quail. | helicobacter pylori (h. pylori) is a gram-negative, microaerophilic bacterium that cause the stomach infection in more than 50% of human population worldwide. the aim of this study was to examine the possibility of anti-h. pylori immunoglobulins y (igys) production in quails and evaluate the effect of the different methods of immunization on titers of igy in egg yolks. whole cell bacterial antigen was used for immunization of quails. forty japanese quails (coturnixjaponica) were divided into fou ... | 2016 | 27822235 |
| complete genome sequence of a newcastle disease virus from a coturnix coturnix japonica (japanese quail) covey in india. | the genome of a newcastle disease virus isolated from a japanese quail in 2003 is reported here. the genome is 15,192 nucleotides (nt) long, as found in the recent genotypes, and grouped as genotype viib, with a 6-nt insertion. this is the first report on the sequence of a genotype vii newcastle disease virus (ndv) from india. | 2014 | 24831141 |
| a novel aflatoxin-binding bacillus probiotic: performance, serum biochemistry, and immunological parameters in japanese quail. | two experiments were performed to screen bacilli isolated from quails for their aflatoxin removal potential and to assess the efficiency of their amelioration of experimental aflatoxicosis. nonhemolytic bacilli were selected for in vitro aflatoxin b1 (afb1) removal and conventional probiotic tests. the isolate with the highest scores was selected for assessment in field experiments and was identified as berevibacillus laterosporus (bl). in the second experiment, 125 male japanese quails (21 d ol ... | 2012 | 22802177 |
| role of poultry in the spread of novel h7n9 influenza virus in china. | the recent outbreak of h7n9 influenza in china has resulted in many human cases with a high fatality rate. poultry are the likely source of infection for humans on the basis of sequence analysis and virus isolations from live bird markets, but it is not clear which species of birds are most likely to be infected and shedding levels of virus sufficient to infect humans. intranasal inoculation of chickens, japanese quail, pigeons, pekin ducks, mallard ducks, muscovy ducks, and embden geese with 10 ... | 2014 | 24574407 |
| phylogenetic analysis and positive-selection site detecting of vascular endothelial growth factor family in vertebrates. | vascular endothelial growth factor (vegf), known to play an important role in vascular homeostasis, vascular integrity and angiogenesis, is little known about the evolutionary relationship of its five members especially the role of gene duplication and natural selection in the evolution of the vegf family. in this study, seventy-five full-length cdna sequences from 33 vertebrate species were extracted from the ncbi's genbank, uniprot protein database and the ensembl database. by phylogenetic ana ... | 2014 | 24200960 |
| tissue distribution, gender- and genotype-dependent expression of autophagy-related genes in avian species. | as a result of the genetic selection of broiler (meat-type breeders) chickens for enhanced growth rate and lower feed conversion ratio, it has become necessary to restrict feed intake. when broilers are fed ad libitum, they would become obese and suffer from several health-related problems. a vital adaptation to starvation is autophagy, a self-eating mechanism for recycling cellular constituents. the autophagy pathway has witnessed dramatic growth in the last few years and extensively studied in ... | 2014 | 25386921 |
| effects of the usage of dried brewing yeast in the diets on the performance, egg traits and blood parameters in quails. | this experiment was carried out to determine the effects of the usage of dried brewing yeast in quail diets on laying performance, egg traits and blood parameters. a total of 240 japanese quails (coturnix coturnix japonica) aged 10 weeks were randomly allocated into one control group and three treatment groups. each group was divided into five replicates as subgroups, comprising 12 quails each. dried brewing yeast (saccharomyces cerevisiae) was used at the levels of 1.5%, 3.0% and 4.5% in the di ... | 2008 | 22444084 |
| evolution of gonadotropin-inhibitory hormone receptor and its ligand. | gonadotropin-inhibitory hormone (gnih) is a neuropeptide inhibitor of gonadotropin secretion, which was first identified in the japanese quail hypothalamus. gnih peptides share a c-terminal lpxrfamide (x=l or q) motif in most vertebrates. the receptor for gnih (gnihr) is the seven-transmembrane g protein-coupled receptor 147 (gpr147) that inhibits camp production. gpr147 is also named neuropeptide ff (npff) receptor 1 (npffr1), because it also binds npff that has a c-terminal pqrfamide motif. to ... | 2014 | 25220854 |
| effects of acute lead ingestion and diet on antibody and t-cell-mediated immunity in japanese quail. | this study investigated the interacting effects of acute lead exposure and different diets on antibody and t-cell-mediated immunity in japanese quail (coturnix coturnix). nine quail (nine week old males) were assigned randomly to each group in a factorial experiment with four treatments and two diets. the treatments were 1) a positive control group fed 20 micrograms/g corticosterone, 2) a negative control group given no lead or corticosterone, 3) a low-lead group, and 4) a high-lead group. the l ... | 1995 | 7710288 |
| leukocyte numbers during the humoral and cell-mediated immune response of japanese quail after microwave irradiation in ovo. | 1. coturnix coturnix japonica eggs were exposed to 2.45-ghz continuous wave microwave radiation at an incident power density of 5 mw/cm2 (sar = 4 mw/g) during the first 12 days of embryogeny. after hatching, leukocyte differential changes were measured in response to an injection with alectoris graeca chukar red blood cells (crbc) and in response to a phytohemagglutinin (pha) injection in irradiated and nonirradiated (sham) quail of both sexes. 2. microwave irradiation did not affect anti-crbc h ... | 1987 | 2886278 |
| hematological response of immunized and serially bled japanese quail. | sexually mature female japanese quail (coturnix coturnix japonica) were immunized by an intravenous injection with .5 ml of a 7.5% suspension of chukar partridge (alectoris graeca chukar) red blood cells (crbc). blood samples were collected either serially from one group of quail or a single time from separate groups of quail at 0 (nonimmunized), 3, 6, and 9 days post-immunization. total anti-crbc hemagglutinin titers (ha) were measured by a microhemagglutinin procedure. selected hematological v ... | 1985 | 4048067 |
| developmental stage affects eggshell-breaking strength in two ground-nesting birds: the partridge (alectoris rufa) and the quail (coturnix japonica). | we examined the relationship between embryo development and egg hardness in two ground nesting bird species, the red-legged partridge (alectoris rufa; n = 165 eggs) and the quail (coturnix japonica; n = 148 eggs). for both species, we observed a strong effect of developmental stage on egg hardness. eggs near hatching were significantly weaker than unincubated eggs (partridge: 18 and 23 n, respectively, and the quail 7 and 10 n, respectively). we additionally explored the effect of incubation on ... | 2007 | 17600815 |
| [biochemical polymorphism in the red partridge (alectoris rufa)]. | egg white proteins, hemoglobin, serum proteins and enzymes from alectoris rufa have been examined by starch gel electrophoresis. all three genetic parameters, mean proportion of loci polymorphic per population (p), mean numbers of alleles per locus (a), and mean proportion of loci heterozygous per individual (h) are given for alectoris rufa, and comparison were made between the proteins of the related species coturnix coturnix japonica. | 1976 | 64137 |
| effect of onion (allium cepa linn.) and garlic (allium sativum linn.) on plasma triglyceride content in japanese quail (coturnix coturnix japonicum). | dietary onion and garlic caused an increase in the level of plasma triglyceride which could be due to insulin like activity of dietary alliums and other factors that promote lipogenesisi in growing stages. changes in the plasma triglyceride level in the control group due to change in age and sex were also noted. the triglyceride level was more in female birds when compared to males of similar age group. the plasma trigelyceride level increased with age in both sex except for the level being simi ... | 2003 | 15267143 |
| effect of alliums on total lipid in plasma and tissues of japanese quails (coturnix coturnix japonica) with respect to age and sex. | dietary onion and garlic caused an increase in the level of liver and plasma total lipids in coturnix coturnix japonica. this increase could be due to the effect of an increased feed intake, bile production, digestion and absorption that in turn caused an increased utilisation of dietary fat, increased transfer of dietary lipids to the liver and/or due to increased lipogenesis as such. however, there was no increase in the muscle lipid content. this effect in the muscle could be due to inhibitor ... | 2005 | 15782822 |
| identification and antimicrobial susceptibility patterns of pasteurella multocida isolated from chickens and japanese quails in brazil. | a study was performed to verify the presence of pasteurella multocida in eight different poultry groups of 90 birds each. groups i to iv were chickens (i being > 6 weeks of age with a history of respiratory illness, ii > 6 weeks of age and free of respiratory illness, iii < 6 weeks of age with respiratory illness and iv being < 6 weeks of age and with no respiratory illness. groups v to viii had the matching characteristics of groups i to v but consisted of japanese quails. the p. multocida isol ... | 2013 | 24159299 |
| impact of cage stocking density on egg laying characteristics and related stress and immunity parameters of japanese quails in subtropics. | the aim of this study was to investigate the effects of different cage stocking densities on egg production parameters, as well as related stress and immunity indices in japanese quails under subtropical egyptian conditions. two hundred and sixteen birds of japanese quail at 14th week of age were used in this experiment. the birds were divided randomly into three groups: 60, 72 and 84. each group subdivided into 4 replicates, where the cages' floor spaces were 200 (s1 ), 167 (s2 ) and 143 (s3 ) ... | 2016 | 26518149 |
| impact of temperature-humidity index on egg-laying characteristics and related stress and immunity parameters of japanese quails. | the aim of this study was to investigate the effect of temperature-humidity index (thi) level on productive parameters, welfare, and immunity in japanese quails. one hundred and eighty (180) birds of japanese quail, 14 weeks old, were used. birds were divided randomly into three equal groups, control (at low thi, less than 70), h1 (at moderate thi, 70-75), and h2 (at high thi, 76-80). birds in the control group had higher body weight (281.2 g, p = 0.001), egg mass (745 g, p = 0.001), fertility ( ... | 2016 | 26489416 |
| effect of aloe vera and clove powder supplementation on carcass characteristics, composition and serum enzymes of japanese quails. | the aim was to study the effect of aloe vera and clove powder supplementation on carcass characteristics, composition and serum enzymes of japanese quails. | 2015 | 27047153 |
| size-dependent isolation of primordial germ cells from avian species. | primordial germ cells (pgcs), the precursors of sperm or ova, could be used to generate transgenic animals and interspecies germ-line chimeras, which would facilitate the recovery of endangered species by making their access and manipulation in vitro easier. during early embryogenesis in avian species, pgcs are transported via the bloodstream to the gonadal anlagen. pgcs of most avian species-particularly wild or endangered birds-are not readily isolated from the embryonic bloodstream because ge ... | 2017 | 28370610 |
| in silico prediction of chemical toxicity on avian species using chemical category approaches. | avian species are sensitive to pesticides and industrial chemicals, and hence used as model species in evaluation of chemical toxicity. in present study, we assessed the toxicity of more than 663 diverse chemicals on 17 avian species. all the chemicals were classified into three categories, i.e. highly toxic, slightly toxic and non-toxic, based on the toxicity classification criteria of the united states environmental protection agency (epa). to evaluate these chemicals, the toxicity prediction ... | 2015 | 25532772 |
| assessing effects of environmental chemicals on neuroendocrine systems: potential mechanisms and functional outcomes. | environmental pollutants encompass a vast array of compounds. most studies in birds have focused on toxicological effects, with little attention to non-lethal effects. consequently, it has proven difficult to assess potential risk associated with exposure to endocrine disrupting chemicals (edcs). assessing potential adverse effects due to exposure is further complicated by the great variation that occurs across avian species. these include variations in reproductive strategies, life span, sexual ... | 2013 | 23773971 |
| predicting toxicities of diverse chemical pesticides in multiple avian species using tree-based qsar approaches for regulatory purposes. | a comprehensive safety evaluation of chemicals should require toxicity assessment in both the aquatic and terrestrial test species. due to the application practices and nature of chemical pesticides, the avian toxicity testing is considered as an essential requirement in the risk assessment process. in this study, tree-based multispecies qsar (quantitative-structure activity relationship) models were constructed for predicting the avian toxicity of pesticides using a set of nine descriptors deri ... | 2015 | 26158470 |
| effects of propolis, royal jelly, honey and bee pollen on growth performance and immune system of japanese quails. | effect of ethanolic extract of propolis, royal jelly, honey and bee pollen in comparison with virginiamycin (as growth promoter antibiotic) as regards the performance and immune system of japanese quail were assessed. we used 256 mixed-sex quail chicks in a completely randomized design by eight treatments, including control, ethanolic extract of propolis 1000 (pe1) and 5000 (pe2) mg kg(-1), pollen powder 1000 (po1) and 5000 (po2) mg kg(-1), royal jelly 100 mg kg(-1) (rj), honey 22 g l(-1) of dri ... | 2016 | 27226882 |
| [acute toxicity of lds, a molluscicide, to non-target organisms]. | to evaluate the acute toxicity of 10% lds, a new molluscicide, to non-target organisms. | 2015 | 27097472 |
| molecular phylogeny of some avian species using cytochrome b gene sequence analysis. | veritable identification and differentiation of avian species is a vital step in conservative, taxonomic, forensic, legal and other ornithological interventions. therefore, this study involved the application of molecular approach to identify some avian species i.e. chicken (gallus gallus), muskovy duck (cairina moschata), japanese quail (coturnix japonica), laughing dove (streptopelia senegalensis), and rock pigeon (columba livia). genomic dna was extracted from blood samples and partial sequen ... | 2015 | 27175180 |
| identification of the long-sought leptin in chicken and duck: expression pattern of the highly gc-rich avian leptin fits an autocrine/paracrine rather than endocrine function. | more than 20 years after characterization of the key regulator of mammalian energy balance, leptin, we identified the leptin (lep) genes of chicken (gallus gallus) and duck (anas platyrhynchos). the extreme guanine-cytosine content (∼70%), the location in a genomic region with low-complexity repetitive and palindromic sequence elements, the relatively low sequence conservation, and low level of expression have hampered the identification of these genes until now. in vitro-expressed chicken and d ... | 2016 | 26587783 |
| embryonic vascular development: immunohistochemical identification of the origin and subsequent morphogenesis of the major vessel primordia in quail embryos. | the development of the embryonic vasculature is examined here using a monoclonal antibody, qh-1, capable of labelling the presumptive endothelial cells of japanese quail embryos. antibody labelling is first seen within the embryo proper at the 1-somite stage. scattered labelling of single cells appears ventral to the somites and at the lateral edges of the anterior intestinal portal. the dorsal aorta soon forms a continuous cord at the ventrolateral edge of the somites and continues into the hea ... | 1988 | 3048971 |
| fluid dynamics of liquid egg products. | the rheological behavior of liquid egg products (egg yolk, egg white, and whole liquid egg) was studied using a concentric cylinder viscometer. eggs of three poultry specimens were used: hen (isa brown), japanese quail (coturnix japonica), and goose (anser anser f. domestica). rheological behavior was pseudoplastic and flow curves fitted by the power law model (herschel-bulkley and ostwald-de waele). the meaning of rheological parameters on friction factors and velocity profiles during flow of l ... | 2015 | 25761859 |
| study of yolk precursor transport in the avian ovary with the use of horseradish peroxidase. | ovaries of adult japanese quails were exposed in vivo to the exogenous protein horseradish peroxidase (hrp) for varying lengths of time to investigate ultrastructurally the permeability of the wall of these follicles, the protein uptake capacity of granulosa and oocyte and the kinetics of protein uptake in different stages. there is a sudden increase in permeability of the follicle wall from previtellogenesis to vitellogenesis. this is not due to a loss of sealing (tight) junctions in the granul ... | 1992 | 1445788 |
| tectal neurons projecting to the isthmo-optic nucleus in the japanese quail. | horseradish peroxidase (hrp) injected into the isthmo-optic nucleus (ion) of the japanese quail retrogradely labeled neurons in the ipsilateral optic tectum. some of these neurons exhibited a characteristic 'willow-like' appearance. somata of these neurons were round or pyriform, usually located in lamina h of the stratum griseum et fibrosum superficiale (sgfs), and emitted several thin dendritic branches that ramified in the deeper laminae of sgfs but not in the retinal recipient laminae of sgf ... | 1985 | 4047497 |
| cytoarchitecture and ultrastructure of the avian ectostriatum: afferent terminals from the dorsal telencephalon and some nuclei in the thalamus. | the cytoarchitecture, ultrastructure, and afferent terminals in the ectostriatal complex of the japanese quail were examined. the complex consists of the central core (ec) and peripheral belt (ep). terminals in the complex were categorized into three main groups according to the shape of synaptic vesicles: s (spherical), p (pleomorphic), and f (flat). s terminals are further classified into three types: ss, small terminals which have densely packed vesicles and a long active zone and are presyna ... | 1985 | 2414332 |
| homotopic and heterotopic transplantations of quail tectal primordia in chick embryos: organization of the retinotectal projections in the chimeric embryos. | to study the adaptative capabilities of the retinotectal system in birds, the primordium of one optic tectum from 12-somite embryos of japanese quail was transplanted either homotopically , to replace the ablated same primordium, or heterotopically, to replace the ablated dorsal diencephalon in white leghorn chick embryos of the same stage. the quail nucleolar marker was used to recognize the transplants. the cytoarchitecture of the tecta and the retinal projections from the eye contralateral to ... | 1984 | 6724134 |
| [experimental study on the etiology of idiopathic scoliosis--a deviation of lower motor neurons of the spinal muscle detected by the horseradish peroxidase method]. | in order to elucidate the etiology of idiopathic scoliosis, studies were carried out by hrp method on the topographical localization and numerical alteration of spinal motor neurons innervating the spinal muscle of the non-scoliotic japanese quail and the scoliotic one established by s. hijikata in 1976. the topographical localization of spinal motor neurons innervating the triceps brachii muscle of the both groups, furthermore, was examined by the same method, and the anatomical fiber connectio ... | 1983 | 6197498 |
| ipsilateral retinal projections in japanese quail, coturnix coturnix japonica. | ipsilateral retinal projections were investigated in japanese quails by means of the fink-heimer method after retinal extirpation, and by means of direct injection of horseradish peroxidase or cobalt ion-tophoresis into the optic nerve. ipsilateral projections were found in the nucleus lateralis anterior thalami, nucleus dorsolateralis anterior thalami pars lateralis, nucleus geniculatus lateralis pars ventralis, nucleus lentiformis mesencephali pars magnocellularis and nucleus ectomamillaris. n ... | 1983 | 6824967 |
| the hypothalamic neurosecretory systems of the japanese quail as revealed by retrograde transport of horseradish peroxidase. | within 24-48 h after injection of horseradish peroxidase (hrp) into the neural lobe or into the median eminence of adult japanese quail dense accumulations of its reaction product (hrp-rp) can be demonstrated in axons of the hypothalamo-hypophysial tract and in the magnocellular neurosecretory perikarya of the supraoptic and paraventricular nuclei as well as in scattered neurons of the accessory hypothalamic neurosecretory nuclei. the hrp-rp-containing nerve fibers, which are beaded in appearanc ... | 1978 | 82485 |
| effect of rooibos tea ( aspalathus linearis ) on japanese quail growth, egg production and plasma metabolites. | | 2008 | 28140626 |
| effect of rooibos tea (aspalathus linearis) on japanese quail growth, egg production and plasma metabolites. | 1. birds have been proposed as a suitable model for studies on ageing because of their long life in comparison with similar-sized mammals. however, some weak fliers, such as galliformes, are the exception to this rule. the aim of the present study was to determine the effects of the treatment with rooibos tea (aspalathus linearis), a natural source of flavonoid antioxidants and compounds with phyto-oestrogenic activity, on postnatal development and egg production of aged japanese quail (coturnix ... | 2008 | 18210290 |
| antihemolytic effect of rooibos tea (aspalathus linearis) on red blood cells of japanese quails. | the antihemolytic activity of rooibos and black tea on japanese quail erythrocytes was studied. peroxide and hypotonic hemolysis of the red blood cells of quails, either fed with rooibos tea supplemented food or fed without tea, was performed. long-term consumption of rooibos tea did not change the erythrocyte fragility to either peroxide or hypotonia induced hemolysis. however, rooibos and black teas decreased peroxide induced hemolysis of erythrocytes incubated with each of them, but not hemol ... | 2000 | 11409839 |
| plumage phenotypes and mate preferences in japanese quail 2. sexual imprinting. | mate selection, with emphasis on early social (sexual imprinting) and subsequent long-term social experience, was studied in a randombred population of japanese quail consisting of wildtype (w), redhead (r) and albino (a) plumage colors. early social experiences involved situations where flocks of the various plumage colors were maintained either separately or intermingled. initial mate preferences were determined from a series of paired choice-tests between plumage phenotypes. wildtype and redh ... | 1983 | 24923714 |
| deuterium-free water (1h2o) in complex life-support systems of long-term space missions. | heavy water containing deuterium displays toxic property. it is stated that any quantity of a heavy isotope of hydrogen--deuterium--is undesirable to animals and plants. it was earlier shown by us that physical-chemical life support systems on board the "mir" station fractionate (change) isotopes of hydrogen, oxygen and carbon. therefore, the problem of regenerative systems in habitable space objects should include removal, from water, of a heavy stable isotope of hydrogen--deuterium. in this ar ... | 2003 | 12575722 |
| physiological and behavioral effects of coniferyl benzoate on avian reproduction. | various plant secondary metabolites related to cinnamic acid are of interest because of their repellency to birds and their occurrence in ecologically important food items. coniferyl benzoate (cb), a phenylpropanoid ester that occurs in quaking aspen (populus tremuloides) is of particular ecological interest because of its effect on ruffed grouse (bonasa umbellus) feeding behavior and its possible influence on the population dynamics of this bird. during detoxification processes, cb and other an ... | 1993 | 24248582 |
| bovine meat and bone meal is an economically viable alternative in quail feeding in the initial phase. | quail egg production has experienced a steep rise in the last decade. nutrition is the main factor affecting productive potential in the poultry industry, as appropriate nutritional management is necessary to ensure the maintenance of optimal physical conditions, growth and the production of high quality products. meat and bone meal (mbm) has often been used in the poultry industry as an alternative and cost-effective source of protein in partial replacement of corn and soybean meal. however, th ... | 2016 | 27254452 |
| quantification and characterization of metallothioneins in tissues of lower vertebrates and invertebrates. | metallothionein (mt) and the related metal-binding proteins in tissues of lower vertebrates and invertebrates were isolated by gel filtration chromatography (conventional liquid and high performance liquid chromatography). the metal-binding proteins including mt were detected by determining the metals bound to the proteins by atomic absorption spectrophotometry. this analytical procedure was recommendable as the first step to characterize unknown metal-binding proteins in diverse living bodies. ... | 1987 | 2959515 |
| main characteristics of biological components of developing life support system observed during the experiments aboard orbital complex mir. | since 1990, the orbital complex mir has witnessed several incubator experiments for determination of spaceflight effects on embryogenesis of japanese quail. first viable chicks who had completed the whole embryological cycle in mir microgravity hatched out in 1990; it became clear that newborns would not be able to adapt to microgravity unaided. there were 8 successful incubations of chicks in the period from 1990 to 1999. in 1995-1997 the mir-nasa space science program united russian and us inv ... | 2001 | 11695432 |
| [biological life support systems: investigations on board of orbital complex "mir"]. | from 1989 till 1998 twelve experiments were performed by bulgarian, russian, slovak, and us researchers and engineers on the effects of space flight on the model of ecosystem "algae-fishes-bacteria", and ontogenesis of birds (japanese quail) and higher plants. for the first time several viable chicks were hatched and passed the whole cycle of their embryonic development in the mir microgravity. the length of the plant ontogenetic cycle as a whole and its specific stages appeared to be same as on ... | 1999 | 10330564 |
| hepatic biotransformation in the buzzard (buteo buteo) and the japanese quail (coturnix coturnix): effect of pcbs. | hepatic biotransformation was studied in microsomal (cytochrome p-450-dependent monooxygenase activities) and cytosolic (glutathione s-transferase activities) fractions from japanese quail (coturnix coturnix) and buzzard (buteo buteo). monooxygenase activities were not very different apart from a high 7-ethoxycoumarin de-ethylase activity in quail as compared to buzzard. glutathione s-transferase activities were higher in quail than in buzzard. dp5 (a commercial mixture of pcbs containing 50% ch ... | 1985 | 2866918 |
| effect of catechins on fattening performance, meat quality, some antioxidant and blood parameters and fattening costs in japanese quail (coturnix coturnix japonica). | the aim of this study was to investigate the effect of dietary supplementation of green tea (camellia sinensis) catechins in quail (coturnix coturnix japonica). quail were fed with a basal diet, and the treatment groups were fed on the basal diet with 1.25 or 2.50 g/kg catechin supplementation for 30 d. fattening performance and meat quality of the quail were estimated. serum total antioxidant status (tas), plasma and liver malondialdehyde (mda) and some serum biochemical parameters were measure ... | 2016 | 27186659 |
| influence of dietary jack beans (canavalia ensiformis) and of concanavalin a on the growth of conventional and gnotobiotic japanese quail (coturnix coturnix japonica). | | 1973 | 4515742 |
| neurovascular anatomy of the embryonic quail hindlimb. | blood vessel and nerve development in the vertebrate embryo possess certain similarities in pattern and molecular guidance cues. to study the specific influence of shared guidance molecules on nervous and vascular development, an understanding of the normal neurovascular anatomy must be in place. the present study documents the pattern of nervous and vascular development in the japanese quail hindlimb using immunohistochemistry and fluorescently labeled intravital injection combined with confoca ... | 2009 | 19685501 |
| vagal preganglionic neurons innervating the different gastric regions in the japanese quail (coturnix japonica). | the cytoarchitecture and distribution patterns of the vagal preganglionic neurons within the dorsal motor nucleus of the vagus nerve (dmnx) innervating the proventriculus and the gizzard of the japanese quail were examined by nissl staining and the horseradish peroxidase (hrp) method. a 30% solution of hrp was injected into nine different gastric regions: the ventral and dorsal parts of the proventriculus, the caudodorsal and cranioventral thick muscles, the craniodorsal and caudoventral thin mu ... | 1995 | 8559557 |
| relative sensitivities of japanese quail to foreign red blood cell challenges for immunotoxicity testing. | given evidence that the immune system is sensitive to environmental contaminants, evaluating immunocompetence in toxicology studies is increasingly important. by incorporating a test of humoral response into controlled reproductive and developmental studies, more comprehensive results can be gathered to assess the potential for disease. the foreign red blood cells (rbc) challenge is a minimally invasive method for evaluating humoral responses to a foreign antigen. typically, antibody response is ... | 2012 | 22480169 |
| nonmammalian vertebrate models in studies of brain-steroid interactions. | estrogen formation in brain and pituitary mediates certain androgen actions in central targets. goldfish (carassius auratus) and quail (coturnix coturnix japonica) have been advantageous for studying the role of locally formed estrogen in autoregulating aromatization and in controlling estrogen receptor occupancy, androgen receptor levels, and behavioral expression. data from these two experimental models reveal a molecular basis for androgen-estrogen synergism in neuroendocrine tissues and for ... | 1990 | 1974804 |
| effect of hempseed (cannabis sativa l.) on performance, egg traits and blood biochemical parameters and antioxidant activity in laying japanese quail (coturnix coturnix japonica). | 1. this study was conducted to determine the effects of hempseed (hs) on performance, egg traits, serum lipid profile and antioxidant activity in japanese quail (coturnix coturnix japonica). 2. a total of 120 eight-week-old laying quail were divided into 4 experimental groups with 10 replicates. the treatments were as follows: (1) control diet (c, no hs in the diet); (2) 5% hs in the diet (hs5); (3) 10% hs in the diet (hs10); and (4) 20% hs in the diet (hs20). the quail were fed the experimental ... | 2014 | 25333932 |
| effects of dietary dilution with fibre on the food intake and gut dimensions of japanese quail. | japanese quail (coturnix coturnix japonica) were fed on either a conventional diet (low-fibre) or the same diet diluted with 200 g oak sawdust/kg (high-fibre). the lengths of the colo-rectum, small intestine, two caeca combined and empty gizzard weight were measured at 10 and 20 weeks of age. food intake and rate of passage were measured and an approximate measure of digestibility was also made. 2. there were separate effects of dietary fibre, sex and age on gut size. it was larger in birds fed ... | 1976 | 1000323 |
| in vivo micronucleus test in the assessment of cytogenotoxicity of landfill leachates in three animal models from various ecological habitats. | the in vivo micronucleus (mn) test, a standard test for the genotoxicity screening of xenobiotics, was used to evaluate the cytotoxic and genotoxic activities of landfill leachates in clarias gariepinus, coturnix coturnix japonica and rattus norvegicus. these organisms were exposed to various sub-lethal concentrations (1-50%) of olusosun and aba eku landfill leachates. at post exposure, peripheral erythrocytes from catfish and quail, and bone marrow cells of quail and rat were subjected to mn an ... | 2016 | 26589948 |
| effect of hempseed (cannabis sativa sp.) inclusion to the diet on performance, carcass and antioxidative activity in japanese quail (coturnix coturnix japonica). | this study was conducted to determine the effects of hempseed (h) on performance, carcass traits, and antioxidant activity in japanese quail (coturnix coturnix japonica). a total of 192 quail with seven-days old were divided into four experimental groups with four replicates. the treatments were; i) control diet (c, no hempseed); ii) 5% hempseed in diet (h5); iii) 10% hempseed in diet (h10); and iv) 20% hempseed in diet (h20). the body weight (bw) and feed intake (fi) of quail was determined at ... | 2014 | 26760931 |
| update on ghrelin biology in birds. | ghrelin is a peptide found in the mucosal layer of the rat stomach that exhibits growth hormone-releasing and appetite-stimulating activities. since the discovery of ghrelin in chicken in 2002, information on its structure, distribution, function, and receptors has been accumulated, mainly in poultry. here, we summarize the following findings since 2008 in birds: (1) central ghrelin acts as an anorexigenic neuropeptide, but the effect of peripheral ghrelin differs depending on the chicken strain ... | 2013 | 23631903 |
| interspecific effects of 4a-dnt (4-amino-2,6-dinitrotoluene) and rdx (1,3,5-trinitro-1,3,5-triazine) in japanese quail, northern bobwhite, and zebra finch. | the purpose of this study was to assess the toxicological effects of two munition compounds, 4-amino-2,6-dinitrotoluene (4a-dnt) and 1,3,5-trinitro-1,3,5-triazine (rdx), on three different bird species: two common toxicological model species-the northern bobwhite (colinus virginianus) and the japanese quail (coturnix japonica), and a representative passerine-the zebra finch (taeniopygia guttata). bobwhite were exposed to 4a-dnt at 0, 8, 15, 30, 60, or 150 mg/kg body weight (bw) d by oral gavage ... | 2013 | 23161369 |
| biased embryos: prenatal experience alters the postnatal malleability of auditory preferences in bobwhite quail. | many precocial birds show a robust preference for the maternal call of their own species before and after hatching. this differential responsiveness to species-specific auditory stimuli by embryos and neonates has been the subject of study for more than four decades, but much remains unknown about the dynamics of this ability. gottlieb [gottlieb [1971]. development of species identification in birds: an enquiry into the prenatal determinants of perception. chicago/london: university of chicago p ... | 2011 | 21400491 |
| unsuitability of the northern bobwhite as a model species for the assessment of reproductive behavior in toxicological studies. | the northern bobwhite (colinus virginianus) is used in numerous wildlife toxicity studies, however no published reports could be located that mention the measurement of reproductive behavior in this species. changes in reproductive behavior can be potentially more sensitive to environmental contaminant exposures and less resilient than more traditional physiological responses. male bobwhite copulatory behaviors were measured similarly to those that are well established for use in japanese quail ... | 2009 | 19778231 |
| stimulus contingency and the malleability of species-typical auditory preferences in northern bobwhite (colinus virginianus) hatchlings. | precocial avian hatchlings are typically highly social and show strong species-typical preferences for the maternal calls of their own species. the influence of social contingencies on the acquisition of species-specific preferences has, however, largely been neglected. we found that exposing bobwhite (bw) quail chicks to a japanese quail (jq) call contingent on their own vocalizations for 5 min was sufficient to eliminate their species-typical preference for the bw maternal call. yoked, noncont ... | 2008 | 18551463 |
| effects of 2 g hypergravity exposure on bobwhite (colinus virginianus) and japanese quail (coturnix coturnix japonica). | we compared reproductive fitness and early postnatal growth of bobwhite (colinus virginianus) and japanese (coturnix coturnix japonica) quail incubated and hatched during 2 g centrifugation. fertilized bobwhite and japanese quail eggs were placed in portable incubators on the 8-ft international space station test bed (isstb) centrifuge at nasa ames research center. the quail eggs were incubated throughout hatching and reared until postnatal day (p)4 at either 1.0, 1.2 or 2.0 g. two days before h ... | 2004 | 16240529 |
| the use of japanese and bobwhite quail as indicator species in avian toxicity test. ecpa/gifap environmental round table. | a comparative analysis was made between the toxicity of plant protection products to two species of quail used in regulatory testing. it was shown that in general differences in the sensitivity between bobwhite quail and japanese quail were small, and not statistically significant. it was therefore concluded that both species should be seen as equally suitable models for avian safety assessment. the mutual acceptance of studies carried out on either of these species for us and ec registration pr ... | 1995 | 7728512 |