| [the effect of proteins from tannery wastes on body proteins in birds]. | the effect of 7.0% and 3.5% proportion of lime protein, produced according to the patent csp 133.077, in the diet was studied under laboratory conditions, as exerted on the growth rate of japanese quail (coturnix coturnix japonica) and on the level of serum proteins and keratins in the feathers of these birds. the second generation of quail fed this diet showed an improvement of growth at the final stage and significant internal changes in the protein spectrum of the blood serum. electrophoresis ... | 1978 | 96565 |
| [ultradian (between 5 and 70 minutes) respiratory (vo2, vco2) rhythms of 4 small vertebrates used in biomedical research]. | four laboratory vertebrate species with a predominant activity, either diurnal (coturnix coturnix japonica), nocturnal (rattus norvegicus, mus musculus), or equivocal (cavia porcellus), present, in usual housing conditions (temperature 20 degrees c, hygrometry 60-70%, acoustical background 70 db, ld12:12 lighting l = 150 lx), food and water ad libitum, ultradian respiratory (vo2, vco2) rhythms of short periods. the frequencies of these rhythms are independent of food intake and activity variatio ... | 1979 | 118819 |
| genetic susceptibility of chicken times quail hybrid embryos to avian rna tumour viruses. | an attempt was made to hybridize the chicken (gallus domesticus) male with japanese quail (coturnix coturnix japonica) female in order to study the genetic susceptibility of hybrid embryos to avian rna tumour viruses of subgroups, a, b, d and e. in the hybrids the results supported the prevailing concept that susceptibility is dominant over resistance regardless of the dominant trait contributed by either parent. it was also observed that the ie gene of the chicken was unable to suppress the 'qu ... | 1975 | 169318 |
| involvement of cholecalciferol metabolism in birds in the adaptation of calcium absorption to the needs during reproduction. | 1. the metabolism of calcium and cholecalciferol in quail (coturnix coturnix japonica) and chicken (gallus domesticus) during maturation was correlated to gonadal activity and plasma oestrogen levels. 2. birds with undeveloped ovaries (immature), developed ovaries but not laying (mature), and after laying 3-8 eggs (laying), were used in the first series. 3. birds in which egg production had been arrested by nicarbazin, were used in the second series. 4. plasma 17 beta-oestradiol and calcium were ... | 1978 | 233778 |
| tracing of cells of the avian thymus through embryonic life in interspecific chimeras. | differences in the structure of the interphase nucleus between two species of birds, the japanese quail (coturnix coturnix japonica) and the chick (gallus gallus) has been used to distinguish cells from different origins in interspecies combinations. this biological cell marking technique was applied to thymus histogenesis. using various combinations between components of quail and chick thymic rudiments, the respective contribution of endodermal epithelium, mesenchyme, and blood-borne extrinsic ... | 1975 | 239088 |
| comparative chemical studies on the quail (coturnix coturnix japonica) egg ovalbumin. | 1. three components of quail ovalbumin were fractionated by gel filtration and ion exchange chromatography. 2. these were a1, a2, and a3, of which the major is a2. they contained phosphorus of 3, 2 and 1 residues, respectively. 3. the amino acid composition were higher in lys, asp, ser, thr and gly, and lower in arg, glu and ile than chicken ovalbumin. 4. the carbohydrate compositions were slightly higher in hexose and lower in hexosamine than chicken ovalbumin. 5. the molecular weight was deter ... | 1978 | 318336 |
| calcium-binding protein and calcium absorption in the laying quail (coturnix coturnix japonica). | a vitamin d3-dependent calcium-binding protein (cabp) has been found in the intestinal mucosa of japanese quail (coturnix coturnix japonica). this protein is similar, if not identical to that of the chick (gallus domesticus). a similar protein fraction appears also in uterine mucosa of laying quail. both intestinal and uterine cabp levels are higher in laying than in non-laying quails. uterine cabp was higher during egg shell formation than during uterine inactivity. the slight corresponding dif ... | 1976 | 180508 |
| marek's disease in japanese quail -- a pathological, virological and serological study. | experimental studies were performed to see whether japanese quail (coturnix coturnix japonica) are susceptible to jm strain of marek's disease virus (mdv). in three identical trials, a total of 120, one-day-old quail were inoculated intra-abdominally with 0.2 ml. of chicken blood infected with mdv (jm strain) and raised in fapp isolators. uninfected controls were inoculated with normal saline only and raised separately. during the 18-week post infection observation period, 65-80% of the infecte ... | 1975 | 180503 |
| initial expression of the genes for fructose 1,6-diphosphatase, malic enzyme, and aspartate aminotransferase in japanese quail and chicken--quail hybrid embryos. | the initial appearance of a number of enzymes involved in gluconeogenesis was investigated in the early embryogenesis of the japanese quail (coturnix coturnix japonica), the domestic chicken (gallus gallus domesticus), and chicken-quail hybrids. starch gel electrophoresis and enzyme-specific stains revealed genetic differences between muscle and liver fructose 1,6-diphosphatase (fdpase) as well as malic enzyme (me) and mitochondrial aspartate aminotransferase (aat) isozymes of the two species. m ... | 1975 | 170909 |
| the epididymal region of the japanese quail (coturnix coturnix japonica). | the epididymal region of the japanese quail was studied histologically. the organ consists of the extratesticular portion of the rete testis, the ductuli efferentes proximales and distales, the ducti conjugentes and ductus epididymidis. distinct tubuli recti link the seminiferous tubules with the rete testis. the non-ciliated cells of the ductuli efferentes proximales and distales show, between them, certain internal structural differences which were highlighted. in 40% of the birds, the ductus ... | 1979 | 433566 |
| pharmacokinetics of gentamicin in blood plasma of quail, pheasants, and cranes. | rate of appearance, peak concentration, and the biological half-life of gentamicin in the plasma of quail (coturnix coturnix), pheasants (phasianus colchicus), and cranes (grus canadensis tabida) were studied. gentamicin was given im in doses of 5, 10, and 20 mg/kg of body weight. peak plasma concentrations occurred earliest in the quail, latest in the cranes. the peak concentrations varied directly with the administered doses in all species. the biological half-life of gentamicin was 42 +/- 12 ... | 1979 | 475144 |
| the folacin requirements of broiler chicks and quail (coturnix coturnix japonica). | six experiments were conducted to investigate the effect of dietary composition on the folacin requirement of broiler chicks and to determine the folacin requirement of growing japanese quail. the folacin requirement of both chicks and quail could not be determined when an isolated soybean protein based diet containing 0.44 mg. folacin per kilogram was used. dietary composition affects folacin requirement of growing broiler chicks. three values for the folacin requirement of growing broiler chic ... | 1977 | 611491 |
| involvement of catecholaminergic nerve fibers in angiotensin ii-induced drinking in the japanese quail, coturnix coturnix japonica. | monamine distribution in a septohypothalamic area was investigated in the japanese quail using a histochemical fluorescence method. this area includes the subfornical organ (sfo) and the preoptic area (poa) which are inferred dipsogenic receptor sites for angiotensin ii (aii) in the japanese quail. nerve fibers showing yellow-green fluorescence were found between the poa and the sfo. thwy traversed from the poa to the sfo, and some fibers seemed to terminate on the neurons in the sfo. after a lo ... | 1979 | 487128 |
| micro-stereological study of the avian epididymal region. | morphometric studies of the epididymal region of three avian species (gallus domesticus, coturnix coturnix japonica, japanese quail, and numida meleagris, guinea-fowl) were performed using a stereological compensating eyepiece graticule. the proportions of the volume of the region made up of rete testis lacunae, proximal and distal efferent ductules, connecting ducts, ductus epididymidis, blood vessels and connective tissue were determined. the efferent ductules constituted the largest proportio ... | 1979 | 536308 |
| testosterone and sex related physical characteristics during the maturation of the male japanese quail (coturnix coturnix japonica). | | 1979 | 572248 |
| eastern equine encephalomyelitis outbreak in coturnix quail. | eastern equine encephalomyelitis (eee) was the cause of heavy mortality in coturnix quail (coturnix coturnix) reared commercially in south carolina. the birds showed depression, tremor, and partial paralysis that advanced into complete paralysis, torticollis, and death within a few hours. the only consistent lesion on necropsy was a catarrhal enteritis in the duodenal area. the disease spread rapidly to all pens throughout the two houses on the farm in all birds over 2 weeks old, and mortality r ... | 1978 | 697663 |
| isolation of mycoplasma gallisepticum from sinuses of three quails (coturnix coturnix japonica). | | 1978 | 741620 |
| the japanese quail (coturnix coturnix japonica) as a laboratory animal. | the use of the japanese quail as a laboratory animal was first reported in 1959. since then this species has been increasingly used as an avian model for biomedical research. a quail colony was recently established in the dental research institute to provide adult birds for teratogenicity and toxicity studies. these birds are not widely used for biological research in south africa at present. the housing, husbandry, breeding and nutrition of this species is described, together with the biomethod ... | 1978 | 745199 |
| ontogeny of the avian thymus and bursa of fabricius studied in interspecific chimeras. | differences in the structure of the interphase nucleus between two species of birds, the japanese quail (coturnix coturnix japonica) and the chick (gallus gallus) have been used to distinguish cells from different origins in interspecies combinations. this biological cell marking technique was applied to thymus and bursa of fabricius histogenesis. using various combinations between components of quail and chick thymic and bursic rudiments, the respective contribution of endodermal epithelium, me ... | 1976 | 1008530 |
| fungus-fermented soybeans benefit the life cycle of japanese quail (coturnix coturnix japonica). | feeding quail chicks diets containing soybeans fermented with two cultures of aspergilli (a. oryzae n.r.r.l. 451 and a. oryzae n.r.r.l. 506) resulted in significantly superior weight gains (p less than 0.05) through a 4-week growth period and confirmed previous observations made with identical cultures in broiler studies. subsequent hen-day egg production and egg size were changed little by diets containing fermented soybeans. the numerical increases in fertility and hatchability were not signif ... | 1976 | 945574 |
| comparative effects of niridazole on spermatogenesis and reproductive capacity in the mouse, rat and japanese quail. | niridazole is an effective schistosomicidal compound which, at lower dose levels, affects schistosome gonads. its antifertility and possible mutagenic effects after various courses of oral treatment were compared in mice, rats and japanese quail (coturnix coturnix japonica). in all three species the meiotic stage of spermatogenesis was particularly affected. in mice the highest dose rate (five daily doses of 100 mg/kg) produced sterility during the 4th week. rats were more susceptible, the compo ... | 1976 | 946818 |
| origin of hemopoietic stem cells in embryonic bursa of fabricius and bone marrow studied through interspecific chimeras. | the histogenesis of the bursa of fabricius and of bone marrow was studied by a biological cell marking technique based on differences in the nuclear structure of two species of birds, japanese quail (coturnix coturnix japonica) and chick (gallus gallus). in quail cells the nucleus contains a large amount of heterochromatin associated with the nucleolus. that makes it possible to distinguish them from chick cells after feulgen-rossenbeck staining and by electron microscopy. by grafting bursal rud ... | 1975 | 1101262 |
| [quantitative aspects of the colonization of the gonads by germ cells in the quail embryo (coturnix coturnix japonical)]. | a quantitative analysis made on quail embryos coming from 13 isolated parent-couples reveals some significative variations of a genetic origin, between some of the offspring studied: the differences observed concern both the quantitative importance of the colonization of gonads by germ cells and the asymmetrical distribution of pggs (primordial germ cells) between the two genital ridges. the chronological study of the colonization in the quail shows, as in both the duck and the chick, two period ... | 1976 | 947997 |
| [new faunal and biological observations on ticks in abruzzo]. | ticks collected during the years 1975-76 in abruzzo (prov. l'aquila and chieti) italy are reported. the following species have been identified: ixodes canisuga, ixodes frontalis, ixodes hexagonus, ixodes ricinus, dermacentor marginatus, haemaphysalis sulcata, rhipicephalus bursa, rhipicephalus sanguineus, hyalomma marginatum. new hosts are: felis catus for ixodes canisuga; scolopax rusticola, motacilla flava, corvus cornix for ixodes frontalis; sciurus vulgaris for haemaphysalis punctata; garrul ... | 1976 | 1032325 |
| correlative cytological and histochemical studies on the avian oogenesis. | a correlative cytological and histochemical study has been made of oogenesis in birds (pigeon, columbia livia; brown dove, streptopelia senegalensis; ring dove, s. dacaocto; domestic fowl. gallus domesticus; and quail, coturnix coturnix). balbiani's vitelline body consisting of large yolk nucleus, mitochondria, golgi bodies and lipid bodies of variable composition is gradually developed in the juxtanuclear cytoplasm of their young oocytes. histochemical tests indicate that the yolk nucleus consi ... | 1976 | 1020422 |
| ontogeny of lactate dehydrogenase isozymes in chicken-quail hybrid embryos. | the ontogeny of lactate dehydrogenase (ldh) isozymes was examined in avian hybrids and compared with the isozyme patterns of the parental species. hybrids were obtained by crossing female japanese quali (coturnix coturnix japonica) with male domestic chickens (gallus gallus domesticus). by use of starch gel electrophoresis and an enzyme-specific stain, traces of embryonic paternally derived ldh were detected in unincubated hybrid eggs. it was concluded that the embryonic genes coding for the b s ... | 1975 | 1137566 |
| enzymes and electrolytes in the semen of japanese quail. | japanese quail (coturnix coturnix japonica) semen was collected at 10 a.m., 2 p.m., or 6 p.m. for four consecutive days during four consecutive weeks. all but the first day's collections were analyzed for sodium, potassium, chloride, carbon dioxide, h+ concentration, cell count, volume and total sperm number. a random sample was then collected for the analysis of amylase and another random sample was collected for the analysis of glutamic oxalacetic transaminase (got), creatine phosphokinase (cp ... | 1975 | 1187516 |
| the species of mallophaga in wild birds in iran. | up to date 2 species of mallophaga have been reported from birds in iran. further studies in tehran area showed that the wild birds harbour more lice. the following species of mallophage are reported for the first time from birds in iran. anaticola crassicornis from anas clypeata, laemobothrion maximum from falco tinnunculus laemobothrion sp. from aquila chrysaetos alcedoecus annulatus from alcedo athis, colpocephalum pectinatum and strigiphilus sp. from streptopelia turtur, amrysidea fulvomacul ... | 1975 | 1243890 |
| immunohistochemical localization of lh-producing cells in the adenohypophysis of the japanese quail, coturnix coturnix japonica. | the cells that produce luteinizing hormone (lh) in the adenohypophysis of the japanese quail were identified immunohistochemically using anti-chicken lh serum and horseradish peroxidase-labeled goat anti-rabbit gamma globulin serum. the lh cells are localized in the caudal lobe of the pars distalis. they are elongate in shape shape and are polarized toward the sinusoids, especially in their active states. alterations in size of lh cells are directly related to changes in circulating lh levels as ... | 1976 | 1268921 |
| influence of different photoperiods on development of gonad, cloacal gland and circulating thyroid hormones in male japanese quail coturnix coturnix japonica. | one day old chicks of japanese quail were exposed to different photoperiods (ld, 8:16, 13.5:10.5, 16:8 and ll) and observations (testes weight, cloacal gland size, body weight and circulating thyroxine and triiodothyronine) were taken at the age of 3, 5, 7, 9 and 16 weeks. results indicate that immediate reproductive development occurred in birds exposed to long photoperiods (greater than 12 hr). growth under ld 8:16, was not apparent till 7th week and by 16 weeks, degree of gonadal development ... | 1992 | 1459646 |
| cultivation of eimeria tenella in japanese quail embryos (coturnix coturnix japonica). | complete development of eimeria tenella in japanese quail embryos was observed. sporozoites were inoculated into the allantoic cavity of 7-day-old japanese quail embryos (coturnix coturnix japonica), after which the infected embryos were incubated at 41 c. in the chorioallantoic membrane mature first generation schizonts, mature second generation schizonts, and gametes were detected at 48 hr postinoculation of sporozoites (pi), 84 hr pi, and 126 hr pi, respectively. mature gametes and zygotes we ... | 1992 | 1491294 |
| [thr arteries of the male sex organs of japanese quail (coturnix coturnix japonica) and their development after hatching]. | a total of 83 male japanese quails of the following age groups were used for this study: 11, 18, 25, 32, 35, 37, 39, 41, 43 days, and 7, 9, 17 weeks after hatching. neoprene-latex, tensol-cement, and the china ink were injected via the aortic arch. in most of male japanese quails, the testes are supplied by the a. testicularis originated from the aorta descendens through a common trunk with the a. renalis cranialis. but in only 3 quails had this artery originated directly from the aorta descende ... | 1992 | 1497141 |
| characterization of a paired box- and homeobox-containing quail gene (pax-qnr) expressed in the neuroretina. | the retina is an integral part of the central nervous system, and consists of two layers, the outer pigmented layer and the inner sensory layer or neuroretina (nr). the nr layer contains several strata of cells (glial and neuronal) derived from proliferating neuroectodermal precursors that differentiate after terminal mitosis. in vitro, nr cells can differentiate not only into neuronal and glial types, but also into pigment and lens cells. quail (coturnix coturnix japonica) nr cells (qnr) infect ... | 1992 | 1354346 |
| eimeria tenella: host specificity in gallinaceous birds. | eight species representing 8 genera of gallinaceous birds were used: alectoris graeca; colinus virginianus; coturnix coturnix; gallus gallus; meleagris gallopavo; numidia meleagris; pavo cristatus; phasianus colchicus. three week-old birds were dosed with sporulated oocysts of eimeria tenella beltsville strain. at 4, 24, 48, 72, 96, 120 and 144, and 168 hr after inoculation, 1-3 infected birds and uninoculated controls of each species were killed by cardiac exsanguination. pieces of intestines w ... | 1976 | 1271306 |
| multilocus dna fingerprints in gallinaceous birds: general approach and problems. | multilocus profiles were investigated in five different species of galliformes (ring-necked pheasant phasianus colchicus, indian peafowl pavo cristatus, japanese quail coturnix coturnix japonica, domestic chicken gallus gallus, and red grouse lagopus lagopus scoticus) using two human multilocus probes (33.6 and 33.15) in combination with each of four restriction enzymes (alui, ddei, haeiii or hinfi). all the species show a dna fingerprint-like pattern using at least one restriction enzyme in com ... | 1992 | 1612925 |
| outbreaks of egg drop syndrome due to eds-76 virus in quail (coturnix coturnix japonica). | two outbreaks of the egg drop syndrome were observed in quail flocks maintained on a farm together with chickens. the decrease in egg production ranged from 10.6 per cent to 50.6 per cent, and the number of soft-shelled eggs increased with the decline in egg production. in both the outbreaks haemagglutination inhibiting antibodies to eds-76 virus were detected. fluorescent viral antigen specific to eds-76 virus was also detected in the lining epithelial and glandular cells of the uterus. | 1992 | 1329304 |
| effects of long term 2% fish oil supplements on tissue fatty acids, phospholipids, cholesterol, and arterial histology in japanese quail (coturnix coturnix japonica). | the effects of 2% olive oil (oo) or fish oil (fo) (super epa500) dietary supplementation (9 months) on japanese "sea" quail was investigated. the animals were examined for tissue biochemical changes and possible blood vessel fatty deposition. the fatty acids of blood and tissue extracts from heart, liver and fat were analyzed by gas-chromatography/mass spectrometry. the ratio of arachidonic acid to eicosapentaenoic or docosahexaenoic acid was markedly decreased in fo treated animals compared to ... | 1991 | 1750803 |
| annual changes in levels of plasma lh and size of cloacal protrusion in japanese quail (coturnix coturnix japonica) housed in outdoor cages under natural conditions. | japanese quail of the strain used in our laboratory do not show a complete decrease in levels of circulating luteinizing hormone (lh) concentrations and show no collapse of the testes following their transfer from long to short days under laboratory conditions. thus, merely manipulating photoperiods in the laboratory does not simulate an annual breeding cycle. to see whether an annual breeding cycle does exist in "our" quail under natural conditions, mature male birds were housed in individual c ... | 1992 | 1577244 |
| day and nighttime concentrations of 5-methoxytryptophol and melatonin in the retina and pineal gland from different classes of vertebrates. | 5-methoxytryptophol (ml) and melatonin concentrations were determined by radioimmunoassay in the retinae and pineal glands of frogs (rana esculenta), chickens (gallus domesticus), quails (coturnix coturnix), and european hamsters (cricetus cricetus), killed in the afternoon (1500-1700 hr) and around midnight (2400-0200 hr). ml was only detectable in significant amounts in the frog retina. in the pineal gland ml levels showed the opposite profile to retinal ml, with measurable levels in the chick ... | 1991 | 1808021 |
| effects of first formant onset properties on voicing judgments result from processes not specific to humans. | both first formant (f1) transition duration and f1 onset frequency have been proposed to be perceptually significant in categorization of voiced and voiceless syllable-initial stops. transition duration per se may not, however, explain the fact that, for longer transitions, longer f1 cutback is required in order to perceive a stop as voiceless. longer transitions result in lower f1 onsets at any duration of cutback greater than zero, and it is possible that the major effect of f1 is determined b ... | 1991 | 1880303 |
| renewal and proliferation of spermatogonia during spermatogenesis in the japanese quail, coturnix coturnix japonica. | four different types of spermatogonia were identified in the seminiferous tubules of the japanese quail: a dark type a (ad), 2 pale a types (ap1 and ap2), and a type b. a model is proposed describing the process of spermatogonial development in the quail. the ad spermatogonia are considered to be the stem cells. each divides to produce a new ad spermatogonium and a ap1 spermatogonium during stage ix of the cycle of the seminiferous epithelium. an ap1 spermatogonium produces two ap2 spermatogonia ... | 1992 | 1571970 |
| purification and characterization of chymotrypsinogen from pancreas of japanese quail (coturnix coturnix japonica). | 1. a chymotrypsinogen from pancreas of japanese quail (coturnix coturnix japonica) was purified by acid extraction, salt fractionation and chromatographic separation on cm-cellulose and sephadex g-100, and gave a single protein band on sds-page. 2. quail chymotrypsinogen had a mol. wt of 26,100 calculated from amino acid composition data, an isoelectric point of 7.68, a km of 3.1 mm and k0 of 40.7 sec-1 for tyrosine ester substrate. 3. the activated chymotrypsinogen of quail had a maximum activi ... | 1990 | 2085958 |
| dotted white--a plumage color mutant in japanese quail (coturnix coturnix japonica). | a plumage color mutant, dotted white (dtw), of japanese quail is described in this paper. the adult dtw mutant shows white plumage with a small colored spot on the head and/or back. the pigmented spots invariably appear on the dorsal region and never on the ventral region of the body. some birds lack colored spots and show pure white plumage. the chick of the dtw mutant shows cream yellow plumules similar to those of the white leghorn chick. colored spots also exist as in adults, and its colorat ... | 1992 | 1740163 |
| vasopressor and depressor effects of native angiotensins and inhibition of these effects in the japanese quail. | the amino acid sequence of angiotensin i (ang i) from the japanese quail, coturnix coturnix japonica, obtained from incubation of homologous plasma and kidney extract was determined as h-asp-arg-val-tyr-val-his-pro-phe-ser-leu-oh. a bolus, intravenous injection of native ang i or of ang ii induced an immediate vasodepressor response and a subsequent vasopressor response in quail which has been lightly anesthetized with urethane (0.75 g/kg). the values for ed50 for the vasopressor and depressor e ... | 1990 | 2191893 |
| production of avian antibodies to three potyviruses in coturnix quail. | avian antibodies against three potyviruses were produced in a small bird, coturnix quail (coturnix coturnix japonica temminck et schlegel), with 15-60 micrograms of purified virus preparations. intramuscular injections of immunogen with freund's incomplete or complete adjuvant into the birds did not result in higher titer of antibody compared to that of control birds given intravenous injections. quail egg yolk antibody was as useful as hen antibody for indirect-elisa and allowed virus to be det ... | 1990 | 2196273 |
| behavior of rabbit dental tissues in heterospecific association with embryonic quail ectoderm. | the behavior of dental tissues from the rabbit, oryctolagus cuniculus, in association with epithelium from the quail, coturnix coturnix japonica, has been examined. adult and embryo rabbits were employed in this study. dental papillae from teeth at the cap stage from rabbit embryos and dental pulp from adult rabbits were isolated surgically and recombined with skin ectoderm from 72-hour-old quail embryos. the recombined tissues were cultured for 48 hours on semi-solid medium and subsequently rem ... | 1990 | 2250161 |
| isolation of campylobacter jejuni from the eggs and organs in experimentally infected laying japanese quails (coturnix coturnix japonica). | | 1990 | 2385046 |
| steroidogenesis in ovarian cells of the japanese quail (coturnix coturnix japonica). | the influence of follicular maturation on steroidogenesis and steroid metabolism by isolated japanese quail granulosa and theca cells was examined. when stimulated with lh, granulosa cells of the largest follicle (f1) responded with a sixfold increase over unstimulated progesterone levels, whereas progesterone production in cells of f3 less than doubled even when maximally stimulated. forskolin stimulated progesterone synthesis in both f1 and f3 granulosa cells, but its effect was less pronounce ... | 1985 | 2416631 |
| distribution of glucocorticoid receptor-like immunoreactivity in the brain, and its relation to crf and acth immunoreactivity in the hypothalamus of the japanese quail, coturnix coturnix japonica. | monoclonal antibody (mab49) against the rat liver glucocorticoid receptor was used to evaluate glucocorticoid receptor (gr) immunoreactive structures in the brain of the japanese quail, coturnix coturnix japonica. using the avidin-biotin technique, the immunoreaction was present in the nerve cell nuclei in intact male birds. high density of glucocorticoid receptor-like immunoreactivity was found in the tubero-infundibular area, nucleus paraventricularis, posteromedialis and lateralis hypothalami ... | 1989 | 2557133 |
| effect of feeding palmitic, oleic, and linoleic acids to japanese quail hens (coturnix coturnix japonica). 1. reproductive performance and tissue fatty acids. | a study was conducted to evaluate the effects of diets containing 3% of either palmitic acid (diet pa), oleic acid (diet oa), or linoleic acid (diet la) on reproductive performance, fatty acid composition of egg yolk, plasma, and liver, and total plasma phosphorus of japanese quail. each diet was fed to 20 individually caged hens from 5 wk of age. a 24-wk production period started at 8 wk of age. fertile eggs for incubation were obtained by placing at random a male in the cage with the female fo ... | 1991 | 1784570 |
| relative salience of species maternal calls in neonatal gallinaceous birds: a direct comparison of japanese quail (coturnix coturnix japonica) and domestic chickens (gallus gallus domesticus). | differential-approach tendencies of individual incubator-hatched chickens and japanese quail were assayed using one exemplar of each of the species maternal calls in a simultaneous-choice paradigm. within 24 hr after hatching, the birds received several short periods of exposure to rotating mounts of an adult female chicken and quail, which emitted the species-appropriate call. all birds were then tested with calls alone over the following 2 to 4 days. the test stimuli were played from speakers ... | 1991 | 2032455 |
| interaction between eimeria uzura infection and aflatoxicosis in japanese quail (coturnix coturnix japonica). | the clinical signs and gross lesions caused by eimeria uzura (10(5) oocysts) in japanese quail (coturnix coturnix japonica) exhibited little or no influence in the face of intercurrent dietary aflatoxicosis (1 p.p.m. of aflatoxin b1 from day 0 to 55). similarly, no significant differences in the mucosal morphology of the intestine were evident histologically between the two groups of japanese quail. the nervous signs of ataxia, leg weakness, incoordination of movement, torticollis and terminal o ... | 1990 | 2111599 |
| tapeworms of quails (coturnix coturnix) in egypt. | the intestines of 150 grey quails (coturnix coturnix) were examined at postmortem, for tapeworms infestation. two species of cestodes were collected raillietina echinobothrida and choanotaenia infundibulum. the prevalence, average number of worms per bird and their morphology were reported. its worth to mention that quail was found to be a new host for r. echinobothrida. | 1989 | 2708868 |
| chromosome banding and dna replication patterns in bird karyotypes. | the karyotypes of the domestic chicken (gallus domesticus), japanese quail (coturnix coturnix), and griffon vulture (gyps fulvus) were studied with a variety of banding techniques. the dna replication patterns of bird chromosomes, analyzed by incorporation of 5-bromodeoxyuridine (brdu) and deoxythymidine (dt), are presented here for the first time. in particular, the time sequence of replication of the zz/zw sex chromosomes throughout the s-phase was meticulously analyzed. brdu and dt incorporat ... | 1989 | 2630186 |
| growth factor activity in luminal fluids from the male reproductive tract of the ram, rat, tammar wallaby (macropus eugenii) and japanese quail (coturnix coturnix japonica). | growth factor activity in luminal fluids from the male reproductive tract was assayed by measuring the stimulation of [3h]thymidine incorporation into balb/c 3t3 fibroblasts. the potency of fluids from the rete testis of the rat, ram, tammar wallaby and japanese quail was much the same. however, about 90% of the activity in fluid from the rete testis of the rat and tammar was lost during its passage through the epididymis. | 1989 | 2760881 |
| hematological response of japanese quail to acute hemorrhagic stress. | hematological and serum biochemical changes in response to hemorrhagic stress were determined in both sexes of juvenile and adult coturnix coturnix japonica over 3 day period following a mechanical hemorrhage of 30% of the calculated total blood volume. there was an initial shift posthemorrhage towards greater numbers of more mature erythrocytes and fewer circulating reticulocytes. reticulocytosis was indicated 48-72 hr posthemorrhage. glucose and lactic acid dehydrogenase levels increased after ... | 1985 | 2864183 |
| effects of fish oil on arteriosclerosis in the japanese quail. | the effects of fish oil on the development of arteriosclerosis were assessed using a special susceptible strain (sea) of japanese quail (coturnix coturnix japonica). sixty four quail were randomly divided into two groups and placed on isocaloric and approximately isocholesterolic (2% by weight) diets. group a (control) was supplemented with 10% beef tallow oil, while group b received 10% menhaden fish oil. the birds were sacrificed at 10 weeks (early) and 15-16 weeks (late). based on semiquantit ... | 1989 | 2598217 |
| marek's disease in japanese quails (coturnix coturnix japonica): a study of natural cases. | marek's disease was observed in quails. gross lesions were confined mostly to the spleen and liver. microscopic lesions were commonly seen in spleen, proventriculus, liver, and duodenum. skin, peripheral nerves, and other visceral organs were also involved. of 123 quails examined, 39 had serum antibodies against marek's disease. these antibodies were detected from 11 to 17 weeks of age; the highest incidence was recorded at 15 weeks. feather follicular antigen detected in 30 of the 95 quails was ... | 1985 | 3000332 |
| pasteurella multocida infection in japanese quail (coturnix coturnix japonica). | three flocks of japanese quail, approximately 75,000 birds each, experienced acute high mortality beginning at 24 to 28 days of age. gross lesions were absent or were composed of either multifocal small pale areas on livers and spleens or lungs slightly darker in color than normal. histopathology revealed multifocal splenic and hepatic necrosis and interstitial pneumonia. pasteurella multocida, serotype 3,4, was isolated from affected tissues. the quail were successfully treated with chlortetrac ... | 1989 | 2619671 |
| experimental studies on marek's disease in japanese quail (coturnix coturnix japonica). | day-old quails experimentally infected with marek's disease (md) virus of quail origin developed lymphoid tumors. the severity of the disease increased considerably with serial passage. tumor transplants could be made with cells derived from gross tumors in skeletal muscles, spleen cells, and blood from md-affected quails. after five to six serial transplants, the tumor could not be transplanted further. marek's disease tumor-associated surface antigen (matsa) was demonstrated in lymphoid cells ... | 1987 | 3039961 |
| experimental aspergillosis in japanese quails (coturnix coturnix japonica). clinical signs and haematological changes. | intratracheal inoculation of 2-week-old quail chicks with aspergillus fumigatus resulted in the development of clinical signs within 24 h of infection. these were characterized by anorexia, depression, accelerated respiration and gasping followed by death. the acute course of the disease lasted for 7-10 days followed by recovery in the surviving chicks. the overall mortality during a 6-week observation period was 20%. although the mean body weight of a. fumigatus infected quail chicks continued ... | 1988 | 3050527 |
| cryptosporidium infections in birds and mammals and attempted cross-transmission studies. | infections by cryptosporidium were detected in association with clinical disease in 11 humans (homo sapiens), 19 calves (bos taurus), nine common quail (coturnix coturnix), six mallard ducks (anas platyrhynchos), five ring-necked pheasant (phasianus colchicus) and a single budgerigar (melopsittacus undulatus). infections in mammals were accompanied by transient diarrhoea and anorexia, whereas infected birds exhibited clinical signs of respiratory distress. repeated cross-transmission studies rev ... | 1987 | 2964117 |
| studies on the fate of flocoumafen in the japanese quail (coturnix coturnix japonica). | 1. 14c-flocoumafen, administered to japanese quail as a single oral or i.p. dose, was rapidly and extensively eliminated in excreta; most was eliminated within 24 h. extensive metabolism of the rodenticide was seen, with at least 8 metabolites detected; unchanged flocoumafen comprised 9% dose. the elimination kinetics and metabolic profiles were qualitatively similar after oral and i.p. dosing. 2. the major metabolites (60% dose) were labile to beta-glucuronidase, liberating aglycones with ident ... | 1989 | 2756717 |
| hematozoan parasites of rio grande wild turkeys from southern texas. | one hundred twenty-three of 300 blood samples (41%) taken from rio grande wild turkeys (meleagris gallopavo intermedia) from three locations in southern texas (welder wildlife refuge, chaparrosa ranch, and campo alegre ranch) and subinoculated into domestic broad-breasted white turkey poults were positive for a plasmodium (novyella) sp. analysis of blood films from 350 turkeys revealed haemoproteus meleagridis in 76% of the birds. a significantly greater mean parasite intensity was observed in b ... | 1988 | 3127605 |
| dihydrofolate reductase activity in the purkinje neuron populations of some non-mammalian vertebrates. | the intensity and distribution of histochemically demonstrable dihydrofolate reductase (fh2-r ec 1.5.1.3.) in unfixed cryostat sections was studied in purkinje neurons of adult vertebrates that have either simple neural circuits and cytoarchitectonics (ictalurus nebulosus, rana esculenta) or complex neural circuits and cytoarchitectonics (coturnix coturnix japonica), compared with the rat as a control. the reaction was generally undetectable in ictalurus nebulosus and in rana esculenta; with pos ... | 1988 | 3149438 |
| different mechanisms controlling fsh and lh release in japanese quail (coturnix coturnix japonica): evidence for an inherently spontaneous release and production of fsh. | plasma concentration of fsh and lh and their content in the adenohypophyses of japanese quail were estimated by homologous radioimmunoassays based on chicken hormones. the results consistently showed that the plasma concentration of fsh was slightly higher than that of lh, although the fsh content in the adenohypophysis was much lower than that of lh in immature, mature and acutely photostimulated quail. these results prompted experiments in vitro to determine whether the difference was intrinsi ... | 1986 | 3081675 |
| localization of avian lhrh-immunoreactive neurons in the hypothalamus of the domestic fowl, gallus domesticus, and the japanese quail, coturnix coturnix. | the localization of lhrh-containing perikarya and nerve fibers in the hypothalami of the domestic fowl and japanese quail was investigated by means of the specific immunoperoxidase abc method, using antisera against chicken lhrh-i ([gln8]-lhrh), chicken gnrh-ii ([his5-trp7-tyr8]-lhrh[2-10]) and mammalian lhrh ([arg8]-lhrh). chicken lhrh-i-immunoreactive perikarya were sparsely scattered in the nucleus preopticus periventricularis (pop), nucleus filiformis (fil) and nucleus septalis medialis (sm) ... | 1988 | 3277716 |
| luteinizing hormone secretion from the quail pituitary in vitro. | an enzymatically dispersed pituitary preparation from japanese quail (coturnix coturnix) was used to study the dynamics of gonadotropin release. after an 18-h incubation, the cells were challenged with different luteinizing hormone-releasing hormones (lhrh) for 90 min. using pituitary cells from mature males, mammalian and chicken lhrh i (gln8-lhrh) had approximately equal luteinizing hormone (lh)-releasing activity whereas chicken lhrh ii (his5, trp7, tyr8-lhrh) was 8-9 times more potent. the l ... | 1987 | 3304437 |
| ultrastructural and cytochemical studies in normal japanese quail (coturnix coturnix japonica) eosinophils and in those from birds with experimentally induced eosinophilia. | normal eosinophil development in the japanese quail (coturnix coturnix japonica) was similar to that described in the fowl and the duck, with granulogenesis occurring in the golgi apparatus. the characteristic lipid droplets were small in the immature eosinophils, and after staining specifically for lipid, small moieties were also traced to the golgi apparatus. in mature eosinophils the lipid droplets measured between 1.0 and 1.5 micron in diameter and they were surrounded by profiles of smooth ... | 1986 | 3022360 |
| intestinal colonization of campylobacter jejuni in young japanese quails (coturnix coturnix japonica). | | 1988 | 3386114 |
| changes in pituitary responsiveness during the ovulatory cycle of the japanese quail, in vitro. | anterior pituitary glands from ovulating japanese quail (coturnix coturnix) were used to investigate variation in sensitivity to chicken luteinizing hormone-releasing hormone (clhrh i; gln8-lhrh). grouping the pituitaries by ovulatory stage provided preliminary evidence of changes in sensitivity to lhrh during the ovulatory cycle. pituitaries taken from quail before the preovulatory lh surge were responsive to clhrh i, while pituitaries from the other times of the cycle showed minimal response t ... | 1988 | 3053965 |
| immunohistochemical study of the distribution of vasotocin reacting neurons in avian diencephalon. | vasotocin (vt)- and neurophysin (nph)-containing neurons were immunocytochemically demonstrated in the diencephalon of the japanese quail (coturnix coturnix japonica), domestic fowl (gallus gallus), and pekin duck (anas platyrhynchos). in these three avian species, the immunoreactive cells are similarly distributed into three different diencephalic regions: lateral (l), periventricular (p), and dorsal diencephalic (dd). a different number of cell clusters can be easily identified in each region ... | 1986 | 3540108 |
| steroids modulate the release of luteinizing hormone from quail pituitary cells. | an enzymatically dispersed pituitary preparation from male japanese quail (coturnix coturnix) was used to study the effects of gonadal and adrenal steroids on gonadotropin release. cells were preincubated for 18 hr with or without steroids and then challenged with chicken luteinizing hormone-releasing hormone (clh-rh i; gln8-lh-rh). preincubation with testosterone (t; 10 nm) significantly suppressed (p less than 0.05) luteinizing hormone release in response to clh-rh i (10 ng/ml). preincubation ... | 1987 | 3325334 |
| roles of age, body weight and composition in the initiation of sexual maturation of japanese quail (coturnix coturnix japonica). | 1. the roles of chronological age, body weight and body composition in the initiation of sexual maturation of japanese quail (coturnix coturnix japonica) were investigated by imposing an inhibitory photoperiod (ip), and by the intramuscular injection of turkey growth hormone (gh) or antisera to turkey growth hormone (agh). 2. absence of sexual maturity in the ip treatment was accompanied by reduced testis and ovary-oviduct weights, and an increased breast muscle weight expressed as a proportion ... | 1988 | 3224292 |
| japanese quail can learn phonetic categories. | japanese quail (coturnix coturnix) learned a category for syllable-initial [d] followed by a dozen different vowels. after learning to categorize syllables consisting of [d], [b], or [g] followed by four different vowels, quail correctly categorized syllables in which the same consonants preceded eight novel vowels. acoustic analysis of the categorized syllables revealed no single feature or pattern of features that could support generalization, suggesting that the quail adopted a more complex m ... | 1987 | 3629235 |
| [adaptation of strains of the rabies virus flury lep and hep to primary culture of fibroblasts of the embryo of japanese quail (coturnix coturnix japonica)]. | | 1986 | 3561096 |
| application of the quail-chick chimera system to the study of brain development and behavior. | hatched chicks with chimeric brains containing cells from both the domestic chicken (gallus gallus domesticus) and the japanese quail (coturnix coturnix japonica) have been produced by transplantation of various regions of the neural tube at the 8- to 15- somite stage. the positions of host and donor cells relative to graft boundaries observed throughout embryonic development and after hatching implicated both radial and tangential cell movements in brain morphogenesis. in addition, transplants ... | 1988 | 3413496 |
| testosterone regulation of androgen receptor levels in the uropygial gland of quails (coturnix coturnix): a further proof for the androgen dependency of the uropygial gland. | in castrated quails supplemented with testosterone by a chronically implanted silastic capsule, removal of the implant resulted in the gradual disappearance of the androgen receptors in both cloacal and uropygial glands. however, after a 7-day time span, the receptors reappeared in both glands but did not reach the original level of implanted birds. on the other hand, the photostimulation of intact birds induced an increase of the receptor content of their uropygial and cloacal glands when compa ... | 1986 | 3781221 |
| comparative study on the cardiac actions of bovine parathyroid hormone (1-34). | the cardiac stimulatory effects of bovine parathyroid hormone (1-34) [bpth-(1-34)] were studied on isolated atria and ventricular strips from cobra snakes (naja naja), ducklings (anas platyrhynchos), pigeons (columba livia), japanese quails (coturnix coturnix japonica), laboratory rats (rattus norvegicus), and dogs (canis familiaris). in all atrial preparations, bpth-(1-34) caused positive chronotropism. this suggests that the chronotropic effect of pth is ubiquitous among the terrestrial verteb ... | 1986 | 3940926 |
| activation of avian medullary bone osteoclasts by oxidized synthetic parathyroid hormone (1-34). | synthetic bovine parathyroid hormone (1-34) [bpth(1-34)] has been treated with hydrogen peroxide and assayed for the effect of such treatment on the ability of bpth(1-34) to activate medullary bone osteoclasts during their quiescent period in the early phase of the ovulatory cycle in japanese quail. in addition, the same batches of oxidized and unoxidized bpth(1-34) were assayed for their hypercalcemic activity in japanese quail and their capacity to stimulate renal adenylate cyclase activity in ... | 1985 | 3991595 |
| calcium-dependent chronotropic action of bovine parathyroid hormone (1-34) in isolated atria of japanese quail, coturnix coturnix japonica. | the involvement of extracellular calcium in the chronotropic action of parathyroid hormone (pth) in isolated quail atria was studied. bovine (b) pth-(1-34) caused dose-dependent increases in the atrial beating rate. the pth-induced positive chronotropism was significantly attenuated by lowering the extracellular calcium concentration or by using the calcium channel antagonists verapamil and d600. this suggests the importance of calcium influx in the cardiac action of pth. beta-adrenergic blockad ... | 1986 | 3557092 |
| encephalitis attributed to dactylariosis in japanese quail chicks (coturnix coturnix japonica). | dactylaria gallopava was isolated from brain tissue of 1-to-3-week-old quail chicks. successive batches demonstrated elevated (15-20%) mortality preceded by incoordination and lateral recumbency. chicks exhibited cerebellar and cerebral encephalitis characterized by brown-red discoloration of affected brain tissue. decontamination of setters and hatchers resulted in abrupt cessation of mortality in subsequent placements, implicating incubators as the source of infection. | 1985 | 4074247 |
| nucleoside incorporation as a function of hormone levels during the early phases of estrogen-induced genesis of medullary bone in the japanese quail, coturnix coturnix. | the sequence of changes in rna synthesis during the early phases of genesis of medullary bone induced in male japanese quail by estrogen treatment was studied by 3h-uridine uptake. analyses of plasma estrogen and testosterone were done by radioimmunoassay at 12, 24, 38 and 61 h. a dose of 5 mg kg-1 estradiol-17 beta was found to stimulate the same 3h-uridine uptake 15 h after hormone treatment as a dose of 20 mg kg-1 of estradiol valerate. the uptake of 3h-uridine rose as the dose of estradiol-1 ... | 1985 | 4075376 |
| life cycle and biology of eimeria lettyae sp. n. (protozoa: eimeriidae) from the northern bobwhite, colinus virginianus (l.). | a new species of coccidium, eimeria lettyae sp. n. (protozoa: eimeriidae) was recovered from feces of the northern bobwhite, colinus virginianus (l.), from pennsylvania and florida. oocysts measured 21.1 microns (16.4 to 25.8) by 17.2 microns (14.1 to 21.2); index (l/w ratio) = 1.22. oocysts lacked a micropyle, residuum, and polar granules. sporozoites penetrated the upper 1/2 of the villi, then moved to the lamina propria at the base of the villi. there were five asexual generations, all of whi ... | 1985 | 4078970 |
| ultrastructural changes in the uropygial gland of the male japanese quail, coturnix coturnix, after testosterone treatment. comparison with the sebaceous gland of the male rat. | the ultrastructure of the uropygial gland of the male quail was compared to that of the sebaceous gland of the male rat after castration and testosterone treatment of both species. in intact animals, the differentiating cells of these glands displayed almost the same pattern as regards their smooth endoplasmic reticulum, an organelle involved in lipogenesis in both cases. castration reduced the volume of this organelle, while testosterone administration restored cell morphology to a normal or su ... | 1986 | 3779815 |
| genetic resistance to ddt in the japanese quail coturnix coturnix japonica. | | 1973 | 4127763 |
| mergamma db and phenylmercuric acetate: their effect on the reproduction of japanese quail (coturnix coturnix japonica temminck and schlegel). | | 1974 | 4131727 |
| experimental studies of st. louis encephalitis virus in vertebrates. | serologically negative birds and mammals of species, known from other studies to be exposed naturally to st. louis encephalitis (sle) virus in memphis, tennessee, and other selected species were inoculated experimentally with strains of sle virus to determine their potential as natural hosts. mosquitoes (culex sp.) were allowed to feed on some of the inoculated vertebrate species, held for 14 days, and tested for sle infection. the cardinals (richmondena cardinalis), robins (turdus migratorius), ... | 1985 | 3999258 |
| infectious sinusitis in coturnix quails in brazil. | in brazil, mycoplasmas were isolated from the sinuses of japanese quails (coturnix coturnix japonica) from two commercial flocks affected with sinusitis. the major respiratory signs and gross lesions are described. based on serological and biochemical results, the mycoplasmas isolated were identified as mycoplasma gallisepticum. one of the isolates was pathogenic for chickens. | 1986 | 3729866 |
| biochemical studies on the shell gland of japanese quail, coturnix coturnix japonica. 1. effect of a developing egg location on activity of glycolytic and other enzymes in the shell gland. | | 1973 | 4272609 |
| selective response of the japanese quail to various strains of rous sarcoma virus. | shipman, charles jr. (indiana university school of medicine, indianapolis), and alvin s. levine. selective response of the japanese quail to various strains of rous sarcoma virus. j. bacteriol. 92:161-163. 1966.-the bryan "high-titer," carr-zilber, harris, prague, schmidt-ruppin, and "29" strains of rous sarcoma virus were used to initiate tumors in the japanese quail (coturnix coturnix japonica). although all strains produced tumors upon primary inoculation, only the bryan "high-titer" and harr ... | 1966 | 4287403 |
| effect of avian myeloblastosis virus in the japanese quail. | moscovici, carlo (university of colorado medical center, denver), and e. h. macintyre. effect of avian myeloblastosis virus in the japanese quail. j. bacteriol. 92:1141-1149. 1966.-avian myeloblastosis virus (amv) induced a spectrum of neoplasms in japanese quail (coturnix coturnix japonica) which was similar to that observed in the chicken, with one exception: the total absence of acute myeloblastic leukemia in quail. studies in vivo as well as in vitro suggested that the cause for this differe ... | 1966 | 4288797 |
| effects of prostaglandins, cyclic amp, seminal plasma, indomethacin, and other factors on oviposition in the japanese quail, coturnix coturnix japonica. | | 1974 | 4369973 |
| [examination for sera from japanese quail (coturnix coturnix japonica) for the presence of antibodies to avian viruses]. | | 1974 | 4374825 |
| metabolism of inorganic cations by quail (coturnix coturnix) drinking solutions of cacl2 and mgcl2. | | 1971 | 4396826 |
| aflatoxicosis in the laying japanese quail (coturnix coturnix japonica). | | 1973 | 4196812 |
| [histochemistry and histo-enzymology of the aorta of young and adult gallus gallus. comparison with coturnix coturnix. ii. lipid and protein metabolism]. | | 1970 | 4260819 |
| [comparative ultrastructural study of the interphasic nucleus in the quail (coturnix coturnix japonica) and the chicken (gallus gallus) by the regressive edta staining method]. | | 1971 | 4103859 |
| hypothalamic norepinephrine, luteinizing hormone releasing factor activity and reproduction in the japanese quail, coturnix coturnix japonica. | | 1974 | 4604551 |
| the relationship between the intestinal microflora and the effects of diets containing raw navy beans (phaseolus vulgaris) on the growth of japanese quail (coturnix coturnix japonica). | | 1972 | 4558957 |