| [corticotropocyte differentiation in adenohypophyseal organ cultures of chick and japanese quail embryos]. | the ability of adenohypophysis rudiment of the 4 days old chick and japanese quail embryos for autonomous histotypical differentiation accompanied by the appearance of corticotropocytes was shown by means of multiple organ cultures and immunochemical markers. the corticotropocytes developed from the rathke's pouch epithelium, as was shown in the experiments with recombination in culture of the adenohypophysis rudiments (rathke's pouch) and perihypophysial mesenchyme isolated from the embryos of ... | 2006 | 6283451 |
| dietary interaction between methylmercury, selenium, arsenic, and sulfur amino acids in japanese quail. | three experiments were conducted using japanese quail to study the effect of arsenic (as) on the detoxifying role of selenium (se) in methylmercury (hg) toxicity and to test the possibility that arsenic could independently modify hg toxicity. the possible role of sulfur-containing amino acids in hg toxicity was also investigated. methylmercuric chloride (10 ppm) had no significant effect on weight gain of the quail. however, it seriously decreased the survival of the quail and of their offspring ... | 1982 | 7088792 |
| [development of hematopoietic tissue in japanese quail embryogenesis]. | temporal hemopoietic organs in the quail embryo are the yolk sac, heart, mesonephros, metanephros, liver, pancreas, small intestine and its mesentrey. in some organs either only erythroid cells (the heart, small intestine and its mesentery), or only granulocytes (the pancreas) are formed. in other temporal organs cell differentiation of both erythrocytic and granulocytic series takes place; as a rule, the erythrocytic series predominate. maximum of erythro- and granulocytopoiesis in all the temp ... | 1982 | 7082186 |
| effects of 2.45 ghz microwave radiation on the development of japanese quail cerebellum. | fertilized japanese quail eggs were continuously exposed to 2.45 ghz microwave radiation from day 1 through day 12 of incubation at a power density of 5.0 +/- 0.52 mw/cm2 (mean specific absorption rate = 4.03 mw/gm). in the experiment with embryos, irradiated and control embryos were removed from eggs on day 12, 13 or 14 of incubation and the cerebella were histologically examined. in order to examine the long-term effect of microwave radiation during embryogenesis on the cerebellum, some of the ... | 1982 | 7064109 |
| sexual differentiation of the photoperiodic response in japanese quail. | plasma levels of lh are generally higher in male than in female quail. this dimorphism was found to persist in quail which had been through a breeding cycle and then gonadectomized. under long daylengths (12 h light: 12 h darkness (12l: 12d) or 16l: 8d) ovariectomized quail had plasma levels of lh that were 55-70% of those seen in castrated birds. the difference was reduced after transfer to short days (8l: 16d) when lh concentrations fell to basal levels, but again became more pronounced when t ... | 1982 | 7061952 |
| decreased transference of 153gd into the oocytes of japanese quail given ethylenediaminetetraacetate. | | 1982 | 6806794 |
| effect of artificial photoperiods on plasma thyroxine-binding prealbumin and retinol-binding protein in japanese quail. | | 1982 | 6801168 |
| composition and muscle cellularity of japanese quail after selection for high body weight under an optimal or suboptimal nutritional environment. | the purpose of this study was to determine if the compositional and cellularity changes associated with selection for rapid growth rate in an optimal and suboptimal nutritional environment were similar. the p-line japanese quail had undergone long-term selection for high 4-week body weight and received a 28% protein diet. the unselected c-line quail received the same diet. t-line quail were selected by the same criteria as p-line quail but received a 20% protein diet containing .2% thiouracil. b ... | 1982 | 6178101 |
| phospholipase c activity in egg yolk sac of japanese quail during embryonic development. | 1. the amount of lipid decreased markedly at the later stage of embryonic development, coinciding with the remarkable decrease in yolk weight. 2. phospholipase c activity in the yolk sac appeared on the 6th day of incubation and increased markedly as incubation proceeded. 3. the enzyme showed its optimum activity at ph 9.5 and at 40 degrees c. 4. the activity was enhanced 2-fold by 20 mm cacl2 and by 40% by 4 mm deoxycholate but inhibited by 2 mm zncl2 and cuso4. | 1982 | 7200920 |
| teratogenicity of methylparathion 18 wp and wofatox 50 ec in japanese quail and pheasant embryos, with particular reference to osteal and muscular systems. | | 1982 | 7187800 |
| effect of progesterone, testosterone and oestrogens on the plasma corticosterone and thyroid hormone concentrations in the female japanese quail. | | 1982 | 7168341 |
| carbohydrate metabolism of hepatocytes from starved japanese quail. | | 1982 | 7059176 |
| photoperiodic modulation of gonadotrophin secretion in castrated japanese quail. | male japanese quail were castrated when sexually immature and immediately exposed to one of the following stimulatory lighting regimes for 52 days: 11 h light: 13 h darkness/day (11l : 13d), 12l : 12d, 13l : 11d, 14l : 10d, 15l : 9d, 16l : 8d, 20l : 4d or 23l : 1d. one group was retained on short days (8l : 16d). clearcut differences in the plasma levels of lh and fsh emerged between the various groups. levels remained very low in castrated quail on 8l : 16d but were much greater in those on 14l ... | 1982 | 6799607 |
| keratan sulfate proteoglycan isolated from the estrogen-induced medullary bone in japanese quail. | 1. two proteoglycans isolated from the femurs of quail actively producing medullary bone were separated using deae bio-gel a. 2. the first to elute in the gradient was a keratan sulfate proteoglycan with an average buoyant density of 1.53 g/ml and a kav = 0.57 on sepharose cl-4b. 3. the second proteoglycan to elute contained chondroitin 4-sulfate. 4. apparently only the keratan sulfate proteoglycan is associated with the new medullary bone matrix. | 1982 | 6214368 |
| comparative study of the physiology of vitellogenesis in japanese quail. | 1. during a study of vitellogenesis in the japanese quail, male or female quail were given, intramuscularly, one to three doses of estradiol-17 beta (16 mumol/100 g body weight). 2. in treated males, the plasma concentrations of protein-bound p (pbp, a measure of the phosphate groups in vitellogenin), ca, and total protein fluctuated in unison. 3. packed cell volume (pcv) values varied approx, inversely as the pbp concentrations. 4. maxima of approx. 0.85 mg pbp/ml occurred six, five, and four d ... | 1982 | 6124353 |
| humoral immunity in japanese quail following surgical bursectomy at various ages. | four separate experiments were conducted to determine the effects of surgical bursectomy (bsx) at periodic intervals on subsequent antibody production in japanese quail. at 0, 1, 3, 7, and 28 days of age, bsx resulted in graduated increments in humoral immune responsiveness. quail bsx at 0 and 1 day of age exhibited significantly reduced primary hemagglutinin responses, as well as reduced mercaptoethanol resistant (igg) antibody levels. the production of mercaptoethanol sensitive antibody (igm) ... | 1981 | 7343969 |
| the interaction between day length and the gonads in the regulation of levels of plasma thyroxine and triiodothyronine in the japanese quail. | | 1981 | 7333451 |
| bioavailability of lead in oysters fed to young japanese quail. | | 1981 | 7318793 |
| accumulation of polychlorinated biphenyls in steroidgenic tissue of gonads and adrenals in japanese quail. | female quail exhibited a high uptake of pcb in the yolk of growing follicles, in the thecal gland cells and the medullary interstitial tissue of the ovary and in the postovulatory and atretic follicles. uptake in the shell gland was low. an elimination study of four days indicated that the major part of pcb is excreted via the eggs. male quails showed a very low uptake of pcb in the testes and no accumulation was in the interstitium. the uptake in the fat, liver, and adrenals was similar to that ... | 1981 | 6798943 |
| medullary bone osteogenesis following estrogen administration to mature male japanese quail. | | 1981 | 7286421 |
| glucose, amino acids, and lipogenesis in hepatocytes of japanese quail. | | 1981 | 7275989 |
| vitamin d metabolism in aged japanese quail: dietary calcium and estrogen effects. | the influence of estrogen treatment (estradiol benzoate, 1 mg/kg daily for 5 days) on the in vitro renal metabolism of 25-[3h]hydroxyvitamin d3 has been studied in young adult (8-wk-old) and aged (108-wk-old) female and male japanese quail maintained either on a normal calcium diet or on a low-calcium diet for 4 wk. it is concluded that senescence leads to reduced production of 1,25-dihydroxyvitamin d2 [1,25(oh)2d3] in untreated birds of both sexes and under both dietary conditions. nevertheless ... | 1981 | 7315955 |
| the role of parathyroid hormone on renal excretion of calcium and phosphate in the japanese quail. | | 1981 | 7286637 |
| comparison of the accumulation of 125i and 144ce in the growing oocytes of the japanese quail. | japanese quail were doubly-labeled with 125i (carrier free, as sodium iodide) and 144ce (.015 micromol/100 g, as trichloride). by 1 hr after administration, the growing oocytes and the ova had accumulated 29% of the 125i and 21% of the 144ce. by 18 hr, the accumulations were 30% of the 125i and 79% of the 144ce. lanthanum (15 micromol/100 g, as trichloride), given iv 5 min before the radionuclides, resulted in 1-hr accumulations of 4% for 125i and 23% for 144ce. on fractionation of the oocyte yo ... | 1981 | 7199144 |
| continuous ingestion of different chlordecone (kepone) concentrations and changes in quail reproduction. | to determine the effects of continuous ingestion of different chlordecone concentrations on quail reproduction and mortality, 5-wk-old female japanese quail were fed a diet containing 10, 40, 80, and 160 ppm chlordecone for exactly 250 d. continuous ingestion of 10-80 ppm chlordecone did not induce excessive mortality or significantly alter reproductive functions. similar ingestion of 160 ppm chlordecone increased quail mortality, produced a log in egg production, and affected the normal sequenc ... | 1981 | 6175762 |
| in vitro synthesis of the glycosaminoglycans in estrogen-induced medullary bone in japanese quail. | | 1981 | 7305351 |
| osteoclast cell-surface specializations and nuclear kinetics during egg-laying in japanese quail. | medullary bone deposits serve as a reservoir of labile calcium for egg-shell calcification in birds. quantitative transmission-electron-microscope methods and light-microscope autoradiographic cell-population-kinetic analyses were used to determine changes in cell-surface specializations and population dynamics of medullary bone osteoclasts during egg-laying in japanese quail. prior to egg-shell formation, from 0 to about 8 hours after the previous oviposition, very few osteoclast profiles had r ... | 1981 | 7304473 |
| [the effect of electroconvulsive shock on protein synthesis in japanese quail]. | trials were conducted to study the effect of electroconvulsive shock in the susceptible period of post-natal development upon the proteosynthesis of the japanese quail. proteosynthesis was determined by the incorporation of labelled amino acid and nucleoside in the proteins and dna of liver and oviduct. the tested birds showed an earlier sexual maturity, higher incorporation of labelled amino acid in protein and labelled nucleoside in dna in liver and oviduct, and a higher egg yield at a lower f ... | 1981 | 6171086 |
| effects of feeding pattern on the pituitary--thyroid axis in the japanese quail. | | 1981 | 7262535 |
| effects of sex steroids on aggressive behavior of adult male japanese quail. | | 1981 | 7196360 |
| morphology of the eosinophil in japanese quail. | | 1981 | 7322981 |
| a study on the toxicity and the biochemical effects of ethylene dibromide in the japanese quail. | 1. the acute oral ld50 and chronic lc50 toxicity values for ethylene dibromide (edb) were estimated for japanese quail. 2. single sub-acute oral and intraperitoneal doses of edb (1/2 ld50) and chronic oral doses of edb (1/3 lc50) were administered to quail in order to characterise the sub-lethal effects of edb residues. 3. at 24 h after sub-acute dosing, relative liver weight, plasma aspartate aminotransferase (at) [ec 2.6.1.1] and l-iditol (sorbitol) dehydrogenase (sdh) [ec 1.1.1.14] were eleva ... | 1981 | 7028216 |
| crystallization, crystal structure analysis and molecular model of the third domain of japanese quail ovomucoid, a kazal type inhibitor. | | 1981 | 7310876 |
| tissue lead concentrations in japanese quail ingesting lead pellets or shot with lead pellets. | | 1981 | 7260435 |
| 153gadolinium as a useful radiolanthanide for long-term labeling of tissues in japanese quail. | 153gadolinium (153gd), with gamma energies of 97 kev (30%) and 103 kev (20%), and a nuclear-life of 242 days and with no primary charged particles, was selected as the radiolanthanide for labeling proteins and tissues in japanese quail. ranges of dose-responses 18 hr after giving gd (153gd labeled) were: males, livers 24.4% for .00015 mumol/100 g to 63.8% for .15 mumol/100 g; laying females, livers 6.5% for .00015 mumol/100 g to 72.7% for 15 mumol/100 g and growing oocytes 83.2% for .00015 mumol ... | 1981 | 7301746 |
| correlations between meals and inter-meal intervals in japanese quail and their significance in the control of feeding. | significant correlations (p<0.05) between meals and preceding intervals were shown more often by japanese quail when fed on diluted mash (40% cellulose) than with undiluted mash or pellets. they showed significant correlations between meals and succeeding intervals with about the same frequency on all three foods. most of the correlation coefficients were low, but experiments in which interval length and meal size were manipulated artificially confirmed that close relationships between meals and ... | 1981 | 24925610 |
| diurnal variations in plasma lh, progesterone, testosterone, estradiol, and estrone in the japanese quail. | plasma luteinizing hormone (lh), progesterone, testosterone, estradiol, and estrone of the male and female quail were determined by a radioimmunoassay. progesterone and testosterone or progesterone and lh were determined continuously in ovulating or nonovulating female quail and male quail at 3 hr intervals throughout the day. in another set of experiments, plasma lh, progesterone, estradiol, and estrone were determined simultaneously in ovulating quail, which were autopsied at 3 hr intervals. t ... | 1981 | 7197783 |
| distribution of 153gd in f1 quail. | eggs laid by 153 gd-labeled japanese quail were collected each day for 24 days. maximum transference of the lanthanide to an oocyte approximated 27% of the dose given the quail and occurred usually for the egg collected on the third day. the 24 largest oocytes from each of 2 quail were removed 18 hr after labeling the quail. the curve for a plot of percent 153gd vs. gram of oocyte for these 24 oocytes approximated a log-log function. eggs double-labeled with 153 gd and sudan black b showed no la ... | 1981 | 7197781 |
| efficient incorporation of deuterated amino acids into quail egg white proteins for nuclear magnetic resonance studies. | the in vivo incorporation of deuterated amino acids into egg white proteins of japanese quail is described. using a synthetic diet, the level of incorporation of selectively deuterated tyrosine, tryptophan, histidine, and phenylalanine into lysozyme was greater than 80% as demonstrated by proton nmr. load and load-chase experiments using [3h]phenylalanine or [3h]leucine monitored the fast uptake time (t 1/2 = 2 days) and confirmed the high levels of incorporation. the potential of this system fo ... | 1981 | 7462210 |
| effects of low intensity red light on testicular recrudescence in japanese quail. | experiments were conducted to determine if sighted and blind plumage color mutants of japanese quail elicit comparable testicular recrudescence when exposed to long daily photoperiods of low intensity red light. quail exhibiting testicular regression after exposure to 8 hr of light daily for several weeks were blinded via bilateral ocular enucleation. a control group was not enucleated. two light intensities, 1.4 and 2.8 lx, were applied to half of the birds in each group during a 16 hr daily ph ... | 1981 | 7267539 |
| peripheral androgen concentrations and testicular morphology in embryonic and young male japanese quail. | | 1981 | 7227799 |
| thyroid function in embryonic and perinatal japanese quail. | | 1981 | 7014357 |
| photoinducible phase for gonadotropin secretion entrained to dawn in japanese quail. | | 1981 | 6785147 |
| effect of hypergravitation upon the developing relief of the small intestine in japanese quail. studies with scanning electron microscope. | | 1981 | 7347582 |
| examination of the development of the luminal relief of the small intestine in japanese quails under the scanning electron microscope. | | 1981 | 7347581 |
| [longevity of individually caged japanese quail. brief report]. | | 1981 | 7347483 |
| trends in heterozygosity in the process of producing inbred strains of japanese quail. | trends in heterozygosity in the process of producing inbred strains of japanese quail were examined through the characterization of protein polymorphisms based on gene freqencies of 7 polymorphic loci. the average heterozygosity (ho) at generation 1 was 0.472 and it decreased with increasing inbreeding coefficient (f) to 0.214 at generation 5 when f was 0.594. in all generations, the observed heterozygosities of the surviving families tended to be higher than those of the families that did not s ... | 1981 | 7342802 |
| preliminary toxicity and teratogenicity testing of captan in japanese quail embryos. | | 1981 | 7342747 |
| teratogenicity testing of parathion 20 wp, methylparathion 18 wp and wofatox 50 ec in japanese quail embryos by egg immersion technique. | | 1981 | 7342741 |
| peripheral avian yolk assemblage and its persistence in the blastoderm, studied by trypan blue-induced fluorescence. | shortly after subcutaneous or intraperitoneal injection of nontoxic quantities of trypan blue into laying japanese quails, red fluorescent yolk granules appear in the peripheral ooplasm of their oocytes at the end of the lampbrush stage or subsequently. later a red fluorescence can be observed in the apical cytoplasm of the granulosa cells. the results obtained by this method confirm our previous results (callebaut 1979) obtained by autoradiography after 3h-leucine administration and furnish int ... | 1981 | 7316223 |
| microspectrographic analysis of trypan blue-induced fluorescence in oocytes of the japanese quail. | it was shown that the vital dye trypan blue injected subcutaneously is adsorbed on exogenous yolk and stored in oocytes of japanese quails. the binding sites of the dye could be visualized by fluorescence microscopy. the spectral distribution of the trypan blue-induced fluorescence emitted by yolk granules was analyzed microspectrographically. the analysis revealed that yolk granules exhibit a deep red fluorescence radiation with a maximum intensity at 670 nm, when blue or green excitation light ... | 1981 | 7298390 |
| genetic control and population survey of transferrin in the japanese quail. | | 1981 | 7283209 |
| effect of ovariectomy, thyroidectomy and of thyroxine treatment on the plasma level of corticosterone of the female japanese quail. | corticosterone was determined by means of competitive protein binding in the plasma of ovariectomized, thyroidectomized, ovariectomized and thyroidectomized, thyroxin-treated, corticosterone-treated and control japanese quails, exposed to short or long photoperiod. female birds exposed to short photoperiod possessed a slightly (not significantly) higher plasma corticosterone level than male ones. in photostimulated animals, however, the plasma corticosterone level showed no sex difference. unlik ... | 1981 | 7282206 |
| studies on blood groups in the japanese quail: the common antigens possessed by red blood cells and leukocytes, and their inheritance. | two alloantigens, ly1 and ly2, were detected with alloantisera made by immunization with leukocytes. these antigens were present on red blood cells, peripheral leukocytes and spleen cells and found to be controlled by the autosomal codominant alleles. the phenotypic frequencies of ly1 antigen in the three quail stocks, 1, 2, and 3, were 6.7, 0, and 100 percent, respectively, and those of ly2 antigen were 0 percent in stocks 1 and 2, 7.1 percent in stock 3. it was suggested that ly1 and ly2 antig ... | 1981 | 7228152 |
| teratogenic studies of captan on japanese quail and pheasant embryos. | | 1981 | 6892188 |
| observational learning in japanese quail. | in spite of interest in the cultural transmission of animal behaviour, observational learning has not previously been demonstrated in japanese quail. in the present experiment three groups of 10 quail were trained to peck for reinforcement under discriminative stimulus control. the group which was allowed to observe performance of skilled companions learned faster than a group observing no-pecking models and a group learning without observational experience. furthermore, observation of no-peckin ... | 1980 | 24925510 |
| prolactin concentrations in the pituitary gland and plasma of japanese quail in relation to photoperiodically induced sexual maturation and egg laying. | | 1980 | 7461438 |
| the glycosaminoglycans of estrogen-induced medullary bone in japanese quail. | | 1980 | 7008702 |
| vitamin e deficiency in the japanese quail. | japanese quail were maintained on a low vitamin e soybean meal diet for 35 weeks. percent fertile eggs was significantly decreased after 20 weeks and hatchability was severely depressed. free tocopherol in the plasma of both sexes was markedly reduced in the deficient birds. plasma creatine phosphokinase was unaffected by the low vitamin e treatment. although no other clinical symptoms were observed, dietary vitamin e (2 iu/kg diet) was inadequate to support normal reproduction. | 1980 | 7465502 |
| radiolanthanides as markers for vitellogenin-derived proteins in the growing oocytes of the japanese quail. | producing japanese quail were given intravenous injections of radiolanthanides as trichlorides in .03n hcl solution. in quail given 15 mumol lanthanide pr 100 g body weight, the liver accumulated 46 to 82% of the dose by 18 hr after the injection. the growing oocytes accumulated 6 to 24% of the dose. the spleen had the greatest concentration of radiolanthanide (14 to 38%/g), the liver 9 to 19%/g, and the most heavily labeled oocytes 3 to 9%/g. the atomic number of the lanthanide for the 9 lantha ... | 1980 | 7193323 |
| [glycogenosis ii in japanese quails]. | | 1980 | 7009171 |
| toxicity of mercuric chloride in japanese quail as affected by methods of incorporation into the diet. | three experiments were conducted with day-old japanese quail. when mercuric chloride (hgcl2) was added to the diet as a dry salt, it produced higher mortality than when added as a solution or as a casein-premix. averages of mortality at 4 weeks were 86%, 55%, and 33% when 500 ppm mercury as hgcl2 was added dry, in 95% ethanol, or as a casein-premix, respectively. the nature of solvent (ethanol, methanol, or water) had little or no effect. the addition of mercury as a hgcl2-casein premix produced ... | 1980 | 6450952 |
| a high-affinity cytosol binding protein for 1 alpha,25-dihydroxycholecalciferol in the uterus of japanese quail. | cytosol fractions prepared from the uterine mucosa of egg-laying japanese quail were analysed for binding of the metabolites of cholecalciferol. when the uterus was incubated at 37 degrees c with various radioactive metabolites of cholecalciferol, the nuclear fraction incorporated only 1 alpha,25-dihydroxy[3h]cholecalciferol. when the uterus was incubated at 0 degree c with 1 alpha,25-dihydroxy[3h]cholecalciferol, most of the radioactivity was found in the cytosol. translocation of 1 alpha,25-di ... | 1980 | 6258571 |
| calcium and phosphorus requirements of growing japanese quail. | 1. calcium and phosphorus requirements of growing female japanese quail during 4 and 5 weeks of age were estimated in a 4 x 3 factorial experiment comprising 5, 7, 9 and 11 g calcium and 5, 6 and 7 g phosphorus/kg diet. 2. responses in weight gain, bone ash, food intake and food : gain ratio showed no significant differences due to varying dietary calcium and phosphorus concentrations. 3. it appears that growing japanese quail require not more than 5 g calcium and not more than 5 g phosphorus (2 ... | 1980 | 7459655 |
| delayed reproductive development resulting from aflatoxicosis in juvenile japanese quail. | aflatoxicosis was induced in young japanese quail. in the first experiment five replicates of 30 birds per treatment were fed a soy-corn basal ration containing 0, 5, or 10 microgram aflatoxin per gram of feed from 1 to 3 weeks of age. at 3 weeks, the animals were sacrificed and mesurements taken. in the second experiment, 0 to 10 microgram aflatoxin per gram of diet were fed from either 1 to 3 weeks of age or 2 to 4 weeks of age. at 3 weeks of age body weights were significantly (p < .05) reduc ... | 1980 | 7433358 |
| the effects of exogenous steroidal hormones on the testes of quail from selected high and low mating lines. | several steroid hormones were tested for their effects on the testes of lines of japanese quail selected for high and low mating frequency. estradiol benzoate and testosterone propionate caused a complete and partial regression of the testes, respectively, while dihydrotestosterone did not affect testicular weight. spermatogenesis was adversely affected by both estradiol benzoate and testosterone propionate but not by dihydrotestosterone. dihydrotestosterone caused a significant increase in the ... | 1980 | 7413595 |
| the early influence of aflatoxin upon sexual maturation in the male japanese quail. | the effects of early exposure to aflatoxin on sexual maturation were investigated in young male japanese quail. quail in treatment a were fed a soy-corn starter mash with 10 micrograms aflatoxin/g added from 7 to 21 days of age. treatment b quail were fed this from 14 to 28 days of age. animals from each treatment were sampled at intervals from 25 days to 70 days of age. both behavioral and physiological indicators of sexual maturation were monitored including measurements of sexual behavior, cl ... | 1980 | 7413583 |
| efficacy of nickel ferrocyanide-anion exchange resin for reducing egg contamination with 137cs in laying japanese quails. | | 1980 | 6968741 |
| divergent selection in japanese quail for the plasma cholesterol response to acth. | two lines of japanese quail were divergently selected for high and low plasma cholesterol levels after three daily injections with 2 iu of adrenocorticotropen (acth)/100 g of body weight. plasma cholesterols were obtained at 31 days of age, just before the first injection, and at 34 days of age, after the last injection. after eight generations of selection, the plasma cholesterol level after acth injections in the high line was 34% greater than the level in the control line, whereas the low lin ... | 1980 | 6251440 |
| aorta elastin turnover in normal and hypercholesterolemic japanese quail. | the turnover and degradation of mature elastin from the aortae of japanese quail were estimated following injection with l-[u-14c]lysine by measuring the changes in specific activity of l-[u-14c]lysine and 14c-labelled desmosine and isodesmosine (crosslinking amino acids derived from lysyl residues) in elastin over a 39-week period. only 5% of the variation in radioactivity could be attributed to changes in time. therefore, it was concluded that the best estimates of mature elastin turnover are ... | 1980 | 6772235 |
| effects of phenylhydroxylamine and aminophenols in japanese quail in vivo. | 1. the effects of phenylhydroxylamine, and o- and p-aminophenol were studied in the japanese quail. 2. symptoms normally observed in aniline-treated birds were seen in quail after phenylhydroxylamine dosage at > 10 mg/kg. aminophenols (up to 50 mg/kg) did not give these symptoms. 3. injection of phenylhydroxylamine (50 mg/kg) resulted in formation of 70% ferrihaemoglobin after 5 min, following which a rapid reduction of ferrihaemoglobin was observed. 4. phenylhydroxylamine reached highest blood ... | 2012 | 7470247 |
| [growth of japanese quail embryo cell cultures on deae-sephadex a-50 microcarrier]. | the growth of japanese quail embryo cells on deae-sephadex a-50 microcarrier was studied, and the growth of the cells on different microcarriers was compared. under the optimal conditions of microcarrier proceedings quail fibroblast cultures could be grown successfully on a microcarrier reaching a cell density per unit surface comparable to that in monolayer cell cultures. among the microcarriers tested: cytodex, biosylon and deae-sephadex a-50 treated by the author's method, the latter created ... | 2016 | 6999740 |
| reverse selection in a japanese quail line previously selected for 4-week body weight. | after 38 generations of individual selection for high 4-week body weight in a japanese quail line (t) fed a 20% protein diet containing .2% thiouracil, a reverse selected line (tr) was established by selecting quail in the t line with the lowest 4-week body weight. the tr line was thereafter provided with the same nutritional environment as the t line and selected for low 4-week body weight for 5 generations. the mean 4-week body weights of t line quail increased only slightly from generation 38 ... | 1980 | 7402982 |
| the effect of of progesterone on the synthesis of retinol-binding protein by japanese quail liver in vitro. | | 1980 | 7190519 |
| hormonal regulations of follicle-stimulating hormone receptors in the tests of japanese quail. | | 1980 | 6251151 |
| the effect of acute cold and warm ambient temperatures on the thyroid hormone concentration in blood plasma, blood supply, and oxygen consumption in japanese quail. | | 1980 | 7364210 |
| role of testosterone and of its metabolites in regulating gonadotrophin secretion in the japanese quail. | in the japanese quail gonadal steroids can depress plasma levels of lh and fsh. since it is now accepted that testosterone metabolites may be metabolized to the tissue-active forms of the hormone, the in-vitro tissue incubation has been combined with steroid replaement therapy in vivo to investigate the physiological roles of various testosterone metabolites as inhibitory feedback agents on gonadtorophin secretion in quail. after the incubation of quail pituitary glands for 3 h with labelled tes ... | 1980 | 6767799 |
| neuroendocrine regulation of gonadotrophin-releasing hormone secretion in the japanese quail. | | 1980 | 6767641 |
| effect of 3-hydroxy-3-methylglutaric acid on cholesterol metabolism in female japanese quail. | the compounds 3-hydroxy-3-methylglutaric acid (hmg) and hmg diethylester were administered to laying coturnix hens to evaluate their potential in reducing yolk cholesterol concentrations. the administration of hmg did not produce consistent differences from controls in tissue levels of either cholesterol or triglycerides. the administration of hmg diethylester appeared to increase the de novo synthesis of cholesterol and the mobilization of cholesterol from liver to serum, as assayed by the upta ... | 1980 | 6158036 |
| a third allele at the phosphoglucose isomerase locus of the japanese quail. | phosphoglucose isomerase electrophoretic patterns of the japanese quail were found to be controlled by three alleles at an autosomal locus. in the laboratory quail population, the frequency of the alleles pgif, pgis1 and pgis2 was 0.175, 0.465 and 0.360, respectively. | 1980 | 7458006 |
| aflatoxin susceptibility of selected and control japanese quail lines. | 1. the influence of aflatoxin on growth and mortality of diverse lines of quail was studied in five trials. 2. feeding 5 or 10 micrograms aflatoxin/g diet from 4 to 7 weeks of age resulted in significant decreases in body-weight gain in all lines. 3. similar gains for all treatments during the third week of feeding indicated that body weights were reduced only during the first two weeks. 4. crop intubation with 4 or 8 mg aflatoxin/kg body weight resulted in different mortality patterns for the s ... | 1980 | 7397591 |
| effects of 2.45-ghz microwave radiation on embryonic quail hearts. | although exposure to nonionizing electromagnetic radiation has been reported to cause a variety of systemic alterations during embryonic development, there are few reports of the induction of specific physiology or morphologic changes in the myocardium. this study was designed to examine the effects of microwave radiation on cardiogenesis in japanese quail embryos exposed during the first eight days of development to 2.45-ghz continuous-wave microwaves at power densities of 5 or 20 mw/cm2. the s ... | 1980 | 7284035 |
| uptake of retinol, retinol-binding protein and thyroxine-binding prealbumin by egg yolk of japanese quail. | | 1980 | 6774902 |
| estradiol-induced stimulation of 25-hydroxyvitamin d3-1-hydroxylase in vitamin d-deficient japanese quail. | the dose-response relationship of estradiol benzoate (e2b)-induced increase of in vitro 1,25-dihydroxyvitamin d3 - 1,25-(oh)2d3 - production in japanese quail raised on a vitamin d-deficient diet was investigated. 4-week-old male and female japanese quail, initially raised on a normal calcium and vitamin d diet, were placed on a vitamin d-deficient diet for an additional 4 weeks. at 8 weeks of age, e2b was injected intramuscularly at three different doses (0.03, 0.3 and 3.0 mg/kg) daily for 5 da ... | 1980 | 6250169 |
| genetic resistance to aflatoxin in japanese quail. | progress was rapid in attempts to develop lines of quail resistant to acute aflatoxicosis induced by oral dosing with aflatoxin. after five generations of selection, 8- and 11-fold differences were present in mortality between two selected lines and their respective control lines. these quail lines should be of value in investigating the physiological basis of resistance to aflatoxin. | 1979 | 515737 |
| circannual changes in plasma concentrations of immunoreactive retinol-binding protein and luteinizing hormone in male and female japanese quail. | in a single experiment, lasting for 18 months, male and female quail were exposed to an annual cycle of artificial photoperiod synchronized with sunrise and sunset, and their plasma levels of immunoreactive retinol-binding protein (irbp) and lh were monitored at frequent intervals. plasma levels of both irbp and lh showed a repeating annual cycle with maximal levels during the spring/summer, the period of reproductive activity and highest rate of egg-laying, and minimal levels during the autumn/ ... | 1979 | 575385 |
| vitamin d metabolism in japanese quail: effects of lead exposure and dietary calcium. | | 1979 | 231856 |
| an application of response surface methodology to research in poultry nutrition. | response surface methodology (rsm) is an experimental procedure for exploring and examining the nature of responses obtained from the simultaneous variation of quantitative factors. the method has been used only to a limited extent in poultry research. statistical procedures were discussed for fitting a response surface to experimental data. an outline was made of the mathematical process for finding the stationary point, yield at the stationary point and nature of the response surface. a poultr ... | 1979 | 537983 |
| parathyroid hormone stimulation of 1,25-dihydroxyvitamin d3 production in antiestrogen-treated japanese quail. | | 1979 | 530264 |
| effect of beta-adrenergic drugs on plasma glucose and glucagon in japanese quail: a preliminary report. | the present study was conducted to determine the effects of beta-adrenergic stimulation on plasma glucose and glucagon (irg) levels in japanese quail. isoproterenol, epinephrine and three relatively selective beta-adrenoceptor agonists (terbutaline, salbutamol and reproterol) produced dose-related hyperglycemia and hypoglucagonemia. this study demonstrates that beta-adrenoceptor agonists produce hyperglycemia in birds as they do in mammals, but that the rise in plasma glucose in birds, unlike ma ... | 1979 | 42957 |
| photoperiodic control of lh secretion in japanese quail with special reference to the photoinducible phase. | | 1979 | 574102 |
| [japanese quail sqohm as a model for idiopathic scoliosis--its production and examination]. | | 1979 | 527679 |
| effects of cholecalciferol steroids on bone and egg shell calcification in japanese quail. | | 1979 | 225458 |
| entrainment of oviposition in japanese quail using ahemeral light-dark cycles [proceedings]. | | 1979 | 501629 |
| an experimental investigation into the possible origin of pancreatic islet cells from rhombencephalic neurectoderm. | to determine whether or not any pancreatic islet cell type arises from rhombencephalic levels of neurectoderm, lengths of presumptive rhombencephalon (containing potential neural crest) of black australorp chick embryos at 6- to 9-somite stages were replaced isotopically and isochronically by neural tube of japanese quail embryos. some transplants included mesencephalic regions. in some cases various levels of the rhombencephalon were deleted and not replaced. the quail nuclear marker was detect ... | 1979 | 42665 |
| protein requirement of laying japanese quail. | 1. two feeding experiments were conducted to determine the crude protein requirement of laying japanese quail. birds were fed to provide 293 kj me and 2, 3, 4, 5, 6 or 7 g protein/d. 2. as protein intake increased from 2 to 5 g egg production increased. 3. quadratic relationships between protein intake and egg production and protein intake and egg weight were derived. 4. to maintain a production of 90 eggs/100 bird d and an egg weight of 9.3 g required 4.9 g protein and approximately 264 kj me/d ... | 1979 | 497873 |
| effects of diazacholesterol, triparanol, and beta-sitosterol on egg cholesterol deposition in coturnix quail. | studies were undertaken to determine the effect of inhibitors of cholesterol synthesis on deposition of cholesterol in eggs of japanese quail. results indicate that this bird responds similarly to the laying hen, making it a useful screening device for these types of compounds. administration of either triparanol or 20,25 diazacholesterol resulted in a decreased cholesterol content of the yolk. concomitant with this decrease was an increase in desmosterol deposition. beta sitosterol (2%) fed eit ... | 1979 | 493220 |
| possible priming effect of luteinizing hormone releasing hormone on the anterior pituitary gland in the japanese quail and the stimulation of secretion of follicle-stimulating hormone. | after the i.m. injection of 10 micrograms synthetic lh releasing hormone (lh-rh) into japanese quail the levels of lh and fsh in plasma rose significantly within 2 min. the increased level of lh declined rapidly but that of fsh was maintained for the duration of the experiment. to determine whether the anterior pituitary gland is primed by lh-rh a double injection schedule was adopted. it would appear that, while endogenous lh-rh may prime the avian pituitary gland slightly, synthetic lh-rh is i ... | 1979 | 383872 |
| effects of accelerating stimulation on different indices of development in japanese quail embryos. | effects of continuous accelerating stimulation on the timing, duration and rate of occurrence of different indices of development in japanese quail embryos were examined. indices used were: the onset of breathing and hatching, also pipping, clicking, vocalisation, membrane penetration, yolk sac withdrawal and lung aeration. results showed that embryos stimulated by clicks began breathing about nine hours in advance of unstimulated controls and hatched about 23 hours in advance. all other indices ... | 1979 | 469484 |
| the effects of 1,1-di(p-chlorophenyl)-2-chloroethylene on plasma enzymes and blood constituents in the japanese quail. | glutamate oxaloacetate transminase (got), glutamate dehydrogenase (gdh), sorbitol dehydrogenase (sdh), pseudo-cholinesterase (che) and various blood constituents were measured in the plasma of japanese quail fed 1,1-di(p-chlorophenyl)-2-chloroethylene (ddmu) at low levels for periods ranging from 2 to 32 days. previous work has shown that ddmu is a potent inducer of hepatic microsomal enzymes causing marked structural changes in the liver. a rapid increase in plasma got was observed within 4 day ... | 1979 | 466732 |