| molecular phylogeny of some avian species using cytochrome b gene sequence analysis. | veritable identification and differentiation of avian species is a vital step in conservative, taxonomic, forensic, legal and other ornithological interventions. therefore, this study involved the application of molecular approach to identify some avian species i.e. chicken (gallus gallus), muskovy duck (cairina moschata), japanese quail (coturnix japonica), laughing dove (streptopelia senegalensis), and rock pigeon (columba livia). genomic dna was extracted from blood samples and partial sequen ... | 2015 | 27175180 |
| identification and comparative proteomic study of quail and duck egg white protein using 2-dimensional gel electrophoresis and matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry analysis. | a proteomic study of egg white proteins from 2 major poultry species, namely quail (coturnix coturnix) and duck (anas platyrhynchos), was performed with comparison to those of chicken (gallus gallus) through 2-dimensional polyacrylamide gel electrophoresis (2-de) analysis. by using matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry (maldi-tof ms/ms), 29 protein spots representing 10 different kinds of proteins as well as 17 protein spots designating 9 proteins we ... | 2016 | 26957635 |
| [acute toxicity of lds, a molluscicide, to non-target organisms]. | to evaluate the acute toxicity of 10% lds, a new molluscicide, to non-target organisms. | 2015 | 27097472 |
| protective effects of arctium lappa l. root extracts (ares) on high fat diet induced quail atherosclerosis. | this study was designed to evaluate the protective effects of arctium lappa l. root extracts (ares) from different extraction methods (aqueous, ethanol, chloroform and flavone) on atherosclerosis. | 2016 | 26746431 |
| retinal projections in quail (coturnix coturnix). | the trajectory of retinal projections and the location of retinorecipient nuclei in the quail brain was examined after application of horseradish peroxidase (hrp) either to the cut end of the optic nerve or following intraocular injection of hrp. retinal projections to the hypothalamus, dorsalateral anterior thalamus (rostralateral part, magnocellular part, and lateral part), lateral anterior thalamus, lateroventral geniculate nucleus, lateral geniculate intercalated nuclei (rostral and caudal p ... | 1989 | 2487114 |
| ipsilateral retinal projections in japanese quail, coturnix coturnix japonica. | ipsilateral retinal projections were investigated in japanese quails by means of the fink-heimer method after retinal extirpation, and by means of direct injection of horseradish peroxidase or cobalt ion-tophoresis into the optic nerve. ipsilateral projections were found in the nucleus lateralis anterior thalami, nucleus dorsolateralis anterior thalami pars lateralis, nucleus geniculatus lateralis pars ventralis, nucleus lentiformis mesencephali pars magnocellularis and nucleus ectomamillaris. n ... | 1983 | 6824967 |
| synergistic inhibition of angiogenesis by artesunate and captopril in vitro and in vivo. | inhibition of angiogenesis represents one major strategy of cancer chemotherapy. in the present investigation, we investigated the synergism of artesunate and captopril to inhibit angiogenesis. artesunate is an antimalarial derivative of artemisinin from the chinese medicinal plant, artemisia annua l., which also reveals profound anticancer activity in vitro and in vivo. captopril is an angiotensin i-converting (ace) inhibitor, which is well established in western academic medicine. both compoun ... | 2013 | 24223058 |
| effect of rooibos tea (aspalathus linearis) on japanese quail growth, egg production and plasma metabolites. | 1. birds have been proposed as a suitable model for studies on ageing because of their long life in comparison with similar-sized mammals. however, some weak fliers, such as galliformes, are the exception to this rule. the aim of the present study was to determine the effects of the treatment with rooibos tea (aspalathus linearis), a natural source of flavonoid antioxidants and compounds with phyto-oestrogenic activity, on postnatal development and egg production of aged japanese quail (coturnix ... | 2008 | 18210290 |
| physiological and behavioral effects of coniferyl benzoate on avian reproduction. | various plant secondary metabolites related to cinnamic acid are of interest because of their repellency to birds and their occurrence in ecologically important food items. coniferyl benzoate (cb), a phenylpropanoid ester that occurs in quaking aspen (populus tremuloides) is of particular ecological interest because of its effect on ruffed grouse (bonasa umbellus) feeding behavior and its possible influence on the population dynamics of this bird. during detoxification processes, cb and other an ... | 1993 | 24248582 |
| differentiated evolutionary relationships among chordates from comparative alignments of multiple sequences of myod and myog myogenic regulatory factors. | myod and myog are transcription factors that have essential roles in myogenic lineage determination and muscle differentiation. the purpose of this study was to compare multiple amino acid sequences of myogenic regulatory proteins to infer evolutionary relationships among chordates. protein sequences from mus musculus (p10085 and p12979), human homo sapiens (p15172 and p15173), bovine bos taurus (q7ys82 and q7ys81), wild pig sus scrofa (p49811 and p49812), quail coturnix coturnix (p21572 and p34 ... | 2015 | 26505406 |
| hepatic biotransformation in the buzzard (buteo buteo) and the japanese quail (coturnix coturnix): effect of pcbs. | hepatic biotransformation was studied in microsomal (cytochrome p-450-dependent monooxygenase activities) and cytosolic (glutathione s-transferase activities) fractions from japanese quail (coturnix coturnix) and buzzard (buteo buteo). monooxygenase activities were not very different apart from a high 7-ethoxycoumarin de-ethylase activity in quail as compared to buzzard. glutathione s-transferase activities were higher in quail than in buzzard. dp5 (a commercial mixture of pcbs containing 50% ch ... | 1985 | 2866918 |
| effect of catechins on fattening performance, meat quality, some antioxidant and blood parameters and fattening costs in japanese quail (coturnix coturnix japonica). | the aim of this study was to investigate the effect of dietary supplementation of green tea (camellia sinensis) catechins in quail (coturnix coturnix japonica). quail were fed with a basal diet, and the treatment groups were fed on the basal diet with 1.25 or 2.50 g/kg catechin supplementation for 30 d. fattening performance and meat quality of the quail were estimated. serum total antioxidant status (tas), plasma and liver malondialdehyde (mda) and some serum biochemical parameters were measure ... | 2016 | 27186659 |
| influence of dietary jack beans (canavalia ensiformis) and of concanavalin a on the growth of conventional and gnotobiotic japanese quail (coturnix coturnix japonica). | | 1973 | 4515742 |
| effect of hempseed (cannabis sativa l.) on performance, egg traits and blood biochemical parameters and antioxidant activity in laying japanese quail (coturnix coturnix japonica). | 1. this study was conducted to determine the effects of hempseed (hs) on performance, egg traits, serum lipid profile and antioxidant activity in japanese quail (coturnix coturnix japonica). 2. a total of 120 eight-week-old laying quail were divided into 4 experimental groups with 10 replicates. the treatments were as follows: (1) control diet (c, no hs in the diet); (2) 5% hs in the diet (hs5); (3) 10% hs in the diet (hs10); and (4) 20% hs in the diet (hs20). the quail were fed the experimental ... | 2014 | 25333932 |
| effect of hempseed (cannabis sativa sp.) inclusion to the diet on performance, carcass and antioxidative activity in japanese quail (coturnix coturnix japonica). | this study was conducted to determine the effects of hempseed (h) on performance, carcass traits, and antioxidant activity in japanese quail (coturnix coturnix japonica). a total of 192 quail with seven-days old were divided into four experimental groups with four replicates. the treatments were; i) control diet (c, no hempseed); ii) 5% hempseed in diet (h5); iii) 10% hempseed in diet (h10); and iv) 20% hempseed in diet (h20). the body weight (bw) and feed intake (fi) of quail was determined at ... | 2014 | 26760931 |
| nonmammalian vertebrate models in studies of brain-steroid interactions. | estrogen formation in brain and pituitary mediates certain androgen actions in central targets. goldfish (carassius auratus) and quail (coturnix coturnix japonica) have been advantageous for studying the role of locally formed estrogen in autoregulating aromatization and in controlling estrogen receptor occupancy, androgen receptor levels, and behavioral expression. data from these two experimental models reveal a molecular basis for androgen-estrogen synergism in neuroendocrine tissues and for ... | 1990 | 1974804 |
| effects of dietary dilution with fibre on the food intake and gut dimensions of japanese quail. | japanese quail (coturnix coturnix japonica) were fed on either a conventional diet (low-fibre) or the same diet diluted with 200 g oak sawdust/kg (high-fibre). the lengths of the colo-rectum, small intestine, two caeca combined and empty gizzard weight were measured at 10 and 20 weeks of age. food intake and rate of passage were measured and an approximate measure of digestibility was also made. 2. there were separate effects of dietary fibre, sex and age on gut size. it was larger in birds fed ... | 1976 | 1000323 |
| laying date, incubation and egg breakage as determinants of bacterial load on bird eggshells: experimental evidence. | exploring factors guiding interactions of bacterial communities with animals has become of primary importance for ecologists and evolutionary biologists during the last years because of their likely central role in the evolution of animal life history traits. we explored the association between laying date and eggshell bacterial load (mesophilic bacteria, enterobacteriaceae, staphylococci, and enterococci) in natural and artificial magpie (pica pica) nests containing fresh commercial quail (cotu ... | 2015 | 25912895 |
| in vivo micronucleus test in the assessment of cytogenotoxicity of landfill leachates in three animal models from various ecological habitats. | the in vivo micronucleus (mn) test, a standard test for the genotoxicity screening of xenobiotics, was used to evaluate the cytotoxic and genotoxic activities of landfill leachates in clarias gariepinus, coturnix coturnix japonica and rattus norvegicus. these organisms were exposed to various sub-lethal concentrations (1-50%) of olusosun and aba eku landfill leachates. at post exposure, peripheral erythrocytes from catfish and quail, and bone marrow cells of quail and rat were subjected to mn an ... | 2016 | 26589948 |
| effects of 2 g hypergravity exposure on bobwhite (colinus virginianus) and japanese quail (coturnix coturnix japonica). | we compared reproductive fitness and early postnatal growth of bobwhite (colinus virginianus) and japanese (coturnix coturnix japonica) quail incubated and hatched during 2 g centrifugation. fertilized bobwhite and japanese quail eggs were placed in portable incubators on the 8-ft international space station test bed (isstb) centrifuge at nasa ames research center. the quail eggs were incubated throughout hatching and reared until postnatal day (p)4 at either 1.0, 1.2 or 2.0 g. two days before h ... | 2004 | 16240529 |
| performance of two species of quail on basic reinforcement schedules. | two bobwhite quail (colinus virginianus) and two japanese quail (coturnix coturnix japonica) were trained to peck a response key to obtain food. in general, performance on fixed ratio 20 and variable- and fixed-interval 60-sec schedules was comparable to the response patterns of other species under these schedules. | 1968 | 5645877 |
| immunoreactive endothelin in plasma of nonmammalian vertebrates. | immunoreactive endothelin (ir-et) was estimated in plasma of nonmammalian vertebrates, using radioimmunoassay (ria) for endothelin-1 (et-1). blood samples were collected from unanesthetized animals. plasma et was determined by ria after extraction. plasma levels of ir-et were 0.7 +/- 0.2 pg/ml (n = 6) in the hagfish eptatretus burgeri, 4.3 +/- 0.9 pg/ml (n = 5) in the banded dogfish triakis scyllia, 3.6 +/- 0.8 pg/ml (n = 3) in the common japanese conger conger myriaster, 9.6 +/- 1.4 pg/ml (n = ... | 1991 | 1725396 |
| evidence for altered structure and impaired mitochondrial electron transport function in selenium deficiency. | selenium (se) deficiency in the experimental models, coturnix coturnix japonica and corcyra cephalonica, resulted in impaired mitochondrial substrate oxidations and lowered thiol levels. studies with respiratory inhibitors confirmed reduced mitochondrial electron transport enzyme activities, especially at cytochrome c oxidase (cox), the terminal segment. enhanced mitochondrial lipid peroxidation in se deficiency was more pronounced in the heart tissue of the quail compared to other tissues. glut ... | 1996 | 8727670 |
| comparative intralimb coordination in avian bipedal locomotion. | analyses of how intralimb coordination during locomotion varies within and across different taxa are necessary for understanding the morphological and neurological basis for locomotion in general. previous findings suggest that intralimb proportions are the major source of kinematic variation that governs intralimb coordination across taxa. also, independence of kinematics from habitat preference and phylogenetic position has been suggested for mammals. this leads to the hypothesis that among eq ... | 2012 | 22899525 |
| excalfactoria quail as a new laboratory research animal. | chinese painted quail (excalfactoria chinensis), which is sometimes reared as a bird for pleasure, appears to be an excellent candidate for a laboratory research animal. handling and general care of this species are very easy because of its small body size and hardiness. the body weight (mean +/- sem) of the newly hatched chick, adult male, and adult female is 3.93 +/- .05, 47.66 +/- .52, and 55.89 +/- .75 g, respectively; that is, approximately half the size of japanese quail (coturnix coturnix ... | 1994 | 8072918 |
| wfs1 is expressed in dopaminoceptive regions of the amniote brain and modulates levels of d1-like receptors. | during amniote evolution, the construction of the forebrain has diverged across different lineages, and accompanying the structural changes, functional diversification of the homologous brain regions has occurred. this can be assessed by studying the expression patterns of marker genes that are relevant in particular functional circuits. in all vertebrates, the dopaminergic system is responsible for the behavioral responses to environmental stimuli. here we show that the brain regions that recei ... | 2017 | 28267787 |
| a novel mechanism underlies atrazine toxicity in quails (coturnix coturnix coturnix): triggering ionic disorder via disruption of atpases. | the widely used atrazine has been reported to exhibit extensive ecological hazards. due to the biological accumulation, atrazine elicits widespread toxic effects on different organisms. however, true proof for the mechanism of atrazine-induced toxicity is lacking. to determine the potential mechanism by which atrazine exerted toxic effects, quails were treated with atrazine (0, 50, 250 and 500 mg/kg) by gavage administration for 45 days. atrazine significantly increased the histological alterati ... | 2016 | 27924060 |
| evaluation of quail and turkey egg yolk for cryopreservation of nili-ravi buffalo bull semen. | egg yolk is used as a cryoprotectant for semen in different mammalian species including buffalo. egg yolk from different sources may affect freezability of buffalo bull semen. quail egg yolk (qey) and turkey egg yolk (tey) in tris-citric acid extender was evaluated for post-thaw quality and in vivo fertility rate of cryopreserved buffalo bull semen. ejaculates were collected on weekly basis from six nili-ravi buffalo bulls (12 ejaculates/bull) for a period of 6 weeks and diluted at 37 °c with tr ... | 2017 | 27720400 |
| effects of low-protein diets on growth performance and carcass yields of growing french meat quails (france coturnix coturnix). | a dose-response experiment with 5 analyzed dietary crude protein (cp) levels (17.61, 19.73, 21.58, 23.24, and 25.32%) was conducted to investigate the effects of low-protein diets on growth performance and carcass yields of french meat quails from 15 to 42 d of age. all diets were formulated to contain a similar dietary energy level and amino acid profile. a total of 400 fifteen-day-old french quails were divided into 5 experimental treatments and each treatment contained 4 replicate pens of 20 ... | 2016 | 27702918 |
| sirt1/atg5/autophagy are involved in the antiatherosclerosis effects of ursolic acid. | the purpose of this study was to investigate the antiatherosclerosis effects of ursolic acid (ua) in high-fat diet-fed quails (coturnix coturnix) and potential mechanism. quails were treated with high-fat diet (14 % pork oil, 1 % cholesterol w/w) with or without ua (50, 150, or 300 mg/kg/day) for 10 weeks. serum lipid profile was assessed at 0, 4.5, and 10 weeks. after 10 weeks, serum antioxidant status and morphology of aorta were assessed. additionally, human umbilical vein endothelial cells ( ... | 2016 | 27514536 |
| sensitivity of breeding values for carcass traits of meat-type quail to changes in dietary (methionine + cystine):lysine ratio using reaction norm models. | our objective was to evaluate changes in breeding values for carcass traits of two meat-type quail (coturnix coturnix) strains (lf1 and lf2) to changes in the dietary (methionine + cystine):lysine ([met + cys]:lys) ratio due to genotype by environment (g × e) interaction via reaction norm. a total of 7000 records of carcass weight and yield were used for analyses. during the initial phase (from hatching to day 21), five diets with increasing (met + cys):lys ratios (0.61, 0.66, 0.71, 0.76 and 0.8 ... | 2016 | 27501367 |
| effects of selenium supplementation on the oxidative state of acute heat stress-exposed quails. | this study aimed to evaluate the effect of heat stress (hs) and selenium supplementation on markers of stress, meat quality and gene expression. for this, meat quails of 42 days of age were fed a diet that either met [0.33 mg/kg, nutritional demand for selenium (ss)] or did not meet [0.11 mg/kg, selenium deficient (sd)] the nutritional demands for selenium during the 7 days of evaluation. in addition, the animals were kept at either a thermal comfort temperature (25 °c) or exposed to hs (38 °c f ... | 2017 | 26849471 |
| modulation of oxidized-ldl receptor-1 (lox1) contributes to the antiatherosclerosis effect of oleanolic acid. | oleanolic acid (oa) is a bioactive pentacyclic triterpenoid. the current work studied the effects and possible mechanisms of oa in atherosclerosis. quails (coturnix coturnix) were treated with high fat diet with or without oa. atherosclerosis was assessed by examining lipid profile, antioxidant status and histology in serum and aorta. human umbilical vein endothelial cells (huvecs) were exposed to 200μg/ml ox-ldl for 24h, then cell viability was assessed with mtt assay; reactive oxygen species ( ... | 2015 | 26510581 |
| atrazine triggers developmental abnormality of ovary and oviduct in quails (coturnix coturnix coturnix) via disruption of hypothalamo-pituitary-ovarian axis. | there has been a gradual increase in production and consumption of atrazine (atr) in agriculture to meet the population rising demands. female reproduction is necessary for growth and maintenance of population. however, atr impact on females and particularly ovarian developmental toxicity is less clear. the aim of this study was to define the pathways by which atr exerted toxic effects on ovarian development of ovary and hypothalamo-pituitary-ovarian (hpo) axis. female quails were dosed by oral ... | 2015 | 26432752 |
| anatomical atlas of the quail's ear (coturnix coturnix). | this study aims to enhance the anatomical knowledge of the ear of the adult quail (coturnix coturnix) through the creation of a scaled 3d model utilizing data from micro-ct images. in addition, 17 annotated histological sections of the quail's ear are aligned to their 3d position in the model. the resulting anatomical atlas provides an intuitive insight into the 3d anatomy and can be used for medical education. the model also allows measuring anatomical structures and can thus serve as reference ... | 2016 | 26396065 |
| immune neuroendocrine phenotypes in coturnix coturnix: do avian species show lewis/fischer-like profiles? | immunoneuroendocrinology studies have identified conserved communicational paths in birds and mammals, e.g. the hypothalamus-pituitary-adrenal axis with anti-inflammatory activity mediated by glucocorticoids. immune neuroendocrine phenotypes (inps) have been proposed for mammals implying the categorization of a population in subgroups underlying divergent immune-neuroendocrine interactions. these phenotypes were studied in the context of the lewis/fischer paradigm (rats expressing high or low pr ... | 2015 | 25793369 |
| using multiple regression, bayesian networks and artificial neural networks for prediction of total egg production in european quails based on earlier expressed phenotypes. | the prediction of total egg production (tep) potential in poultry is an important task to aid optimized management decisions in commercial enterprises. the objective of the present study was to compare different modeling approaches for prediction of tep in meat type quails (coturnix coturnix coturnix) using phenotypes such as weight, weight gain, egg production and egg quality measurements. phenotypic data on 30 traits from two lines (l1, n=180; and l2, n=205) of quail were modeled to predict te ... | 2015 | 25713397 |
| genetic parameters for body weight in meat quail. | the aim of this study was to estimate genetic parameters for bw in meat quail at different ages. a total of 24,382 weight records from 3,652 quail, born between 2009 and 2011, were evaluated. weekly bw was measured from hatch until 42 d of age. the genetic parameters were estimated by the restricted maximum likelihood method using a multivariate animal model. heritability of bw ranged from 0.03 to 0.23. genetic correlations were mainly high and positive. selection for bw at 28 d of age yielded g ... | 2015 | 25589082 |
| droppings from captive coturnix coturnix (galliformes: phasianidae) as a fly breeding resource. | the aim of this study was to describe the fauna of flies associated with captive coturnix coturnix (l.) (galliformes: phasianidae) droppings. samples of 150 g of quail droppings were exposed in the quail house for 48 h in plastic containers to promote eventual access of flies, and then placed in emergence traps. the number of adults and species emerging was recorded daily. this procedure was carried out in spring 2008 and spring and autumn 2009. in total, 2,138 adults belonging to muscidae, call ... | 2014 | 25347840 |
| planar covariation of limb elevation angles during bipedal locomotion in common quails (coturnix coturnix). | in human bipedal walking, temporal changes in the elevation angle of the thigh, shank and foot segments covary to form a regular loop within a single plane in three-dimensional space. in this study, we quantified the planar covariation of limb elevation angles during bipedal locomotion in common quails to test whether the degree of planarity and the orientation of the covariance plane differ between birds, humans and japanese macaques as reported in published accounts. five quails locomoted on a ... | 2014 | 25267852 |
| association of tyrosinase (tyr) and tyrosinase-related protein 1 (tyrp1) with melanic plumage color in korean quails (coturnix coturnix). | tyr (tyrosinase) and tyrp1 (tyrosinase-related protein 1) play crucial roles in determining the coat color of birds. in this paper, we aimed to characterize the relationship of tyr and tyrp1 genes with plumage colors in korean quails. the snps were searched by cdna sequencing and pcr-sscp in three plumage color korean quails (maroon, white and black plumage). two snps (367t→c and 1153c→t) were found in the coding region of tyrp1 gene, but had no significant association with plumage phenotype in ... | 2013 | 25049736 |
| influence of juniper (juniperus communis) oil on growth performance and meat quality as a natural antioxidant in quail diets. | 1. this study aimed to evaluate the effects of juniper oil on growth performance and meat quality in quails to determine its use as a safe and natural method to reduce overdependence on the use of antibiotic. 2. a total of 1000 1-d-old pharaoh (coturnix coturnix pharaoh) quails, including both males and females, were divided into 4 groups containing 250 quails and treated as follows: (1) a control group with 0 mg volatile oil/kg diet; (2) 100 mg/kg juniper oil; (3) 150 mg/kg juniper oil and (4) ... | 2014 | 24919952 |
| effects of methionine supplementation on the redox state of acute heat stress-exposed quails. | the aims of the present study were to evaluate the possible effects of heat stress (hs) on h2o2 production and to evaluate whether methionine supplementation (ms) could mitigate the deleterious effects on cell metabolism and the redox state induced by oxidative stress. meat quails (coturnix coturnix coturnix) were fed a diet that either met the nutritional demands for methionine or did not meet this demand (methionine deficient [md] diet) for 7 d. the animals were either kept at a thermal comfor ... | 2014 | 24664568 |
| sleep characteristics in the quail coturnix coturnix. | as mammals, birds exhibit two sleep phases, slow wave sleep (sws) and rem (rapid eye movement) sleep characterized by presenting different electrophysiological patterns of brain activity. during sws a high amplitude slow wave pattern in brain activity is observed. this activity is substituted by a low amplitude fast frequency pattern during rem sleep. common quail (coturnix coturnix) is an animal model that has provided information related to different physiological mechanisms present in man. th ... | 2014 | 24582668 |
| menacanthus palmai, a new species of chewing louse (menoponidae: amblycera: phthiraptera) from the coturnix coromandelica. | the new species menacanthus palmai collected from coturnix coromandelica (gmelin), in rampur district (up), india, is described and illustrated. morphologically the new species is close to m. abdominalis from coturnix coturnix but differs in having long pointed ventral processes on the postero-medial angles of the second to fifth pleurites. furthermore, these two species also differ in the number of tergal and sternal abdominal setae, and the morphology of the male genitalia. another species, me ... | 2013 | 24431583 |
| adjustments of global and local hindlimb properties during terrestrial locomotion of the common quail (coturnix coturnix). | previous research has resulted in increasing insight into neuro-mechanical control strategies during perturbed locomotion. in contrast, more general analyses on simple model (template)-related parameters during avian terrestrial locomotion are still rare. quail kinematic data obtained using x-ray videography combined with ground reaction force measurements were used as a basis to investigate how 'global' template and 'local' leg joint parameters in this small, predominantly terrestrial bird chan ... | 2013 | 23868846 |
| effects of dietary rosemary and oregano volatile oil mixture on quail performance, egg traits and egg oxidative stability. | 1. this study was conducted to determine the effects of volatile oil mixture on quail laying performance, egg traits and egg malondialdehyde (mda) concentration. 2. a total of 260 pharaoh quails (coturnix coturnix pharaoh) aged 6 weeks were equally divided into 5 groups of 65 (4 replicates of 13 quails each). the mixture of diets was as follows: a control treatment with 0 mg volatile oil/kg of diet; (1) 200 mg/kg rosemary volatile oil; (2) 200 mg/kg oregano volatile oil; (3) 40 mg/kg rosemary vo ... | 2013 | 23647187 |
| non-destructive multibiomarker approach in european quail (coturnix coturnix coturnix) exposed to the herbicide atrazine. | the effect of orally administered atrazine (25 or 100 mg/kg on days 0, 5, and 10 of the experiment) was studied in european quail (coturnix coturnix coturnix) on four non-destructive biomarkers: fecal porphyrins, blood glutathione-s-transferase, glutathione reductase, reduced glutathione, and malondialdehyde (mda). uroporphyrin i (upi) and coproporphyrins i and iii (cpiii) were the main porphyrins detected in feces. the lowest dose of atz caused a significant (p < 0.05) increase in upi and cpiii ... | 2013 | 23619767 |
| xenogeneic transfer of adult quail (coturnix coturnix) spermatogonial stem cells to embryonic chicken (gallus gallus) hosts: a model for avian conservation. | as advanced reproductive technologies have become routine for domesticated species, they have begun to be applied in the field of endangered species conservation. for avian conservation, the most promising technology is the transfer of germ stem cells of exotic species to domestic hosts for the production of gametes. in this study, adult quail (model for exotic species) spermatogonial stem cells were xenogeneically transferred to stages 14-17 chicken host embryos. fluorescent cellular dyes, quai ... | 2013 | 23575150 |
| accumulation and effects of 90-day oral exposure to dechlorane plus in quail (coturnix coturnix). | while a number of studies have addressed bioaccumulation of the flame retardant dechlorane plus (dp), little information is available regarding the adverse effects of dp on animals, especially on bird species. in the present study, male common quails (coturnix coturnix) were consecutively exposed to commercial dp-25 by gavage for 90 d at 1-mg/kg/d, 10-mg/kg/d, and 100-mg/kg/d dosages. concentrations of dp isomers in liver, muscle, and serum were determined after exposure. liver enzyme activity i ... | 2013 | 23440862 |
| endocrine disruption caused by oral administration of atrazine in european quail (coturnix coturnix coturnix). | the widely used herbicide atrazine (atz) has been reported to exhibit reproductive toxicity in rats, fish and amphibians, with an avian ld(50) of 5000 mg/kg. in the present work, atz was administered as a single oral dose of 25 or 100 mg/kg to female european quail (coturnix coturnix coturnix) at days 0, 5 and 10 of the experiment, being the animals sampled at days 15, 30 and 45. atz significantly increased the expression of hepatic estrogen receptor α (erα) at both doses at day 30. an important ... | 2012 | 22871608 |
| the sedative effects of hops (humulus lupulus), a component of beer, on the activity/rest rhythm. | the hop (humulus lupulus), a component of beer, is a sedative plant whose pharmacological activity is due principally to its bitter resins, especially to the α-acid component 2-methyl-3-buten-2-ol. the mechanism of action of the resin of hop consists of increasing the activity of the neurotransmitter γ-aminobutyric (gaba), inhibiting the central nervous system (cns). | 2012 | 22849837 |
| combined effect of short-term dehydration and sublethal acute oral dicrotophos exposure confounds the diagnosis of anticholinesterase exposure in common quail (coturnix coturnix) using plasma cholinesterase activity. | common quail (coturnix coturnix) were subjected to controlled and replicated experiments in the summer of 2008 to investigate the effects of short-term dehydration on cholinesterase activity in brain and plasma and the interaction between dehydration and exposure to the organophosphorus pesticide dicrotophos in these same tissues. our objective was to determine if dehydration could confound the diagnosis of anticholinesterase exposure using inhibition of cholinesterase activity in quail tissues. ... | 2012 | 22740535 |
| are farm-reared quails for game restocking really common quails (coturnix coturnix)?: a genetic approach. | the common quail (coturnix coturnix) is a popular game species for which restocking with farm-reared individuals is a common practice. in some areas, the number of released quails greatly surpasses the number of wild breeding common quail. however, common quail are difficult to raise in captivity and this casts suspicion about a possible hybrid origin of the farmed individuals from crosses with domestic japanese quail (c. japonica). in this study we used a panel of autosomal microsatellite marke ... | 2012 | 22701745 |
| effect of a rosemary and oregano volatile oil mixture on performance, lipid oxidation of meat and haematological parameters in pharaoh quails. | 1. this study was conducted to determine the utility of a volatile oil (vo) mixture in quail diets as a natural growth promoter. different levels of vo mixtures, derived from rosemary and oregano, were added to a basal diet to determine the effects of the mixture on live weight (lw), live weight gain (lwg), feed intake, feed conversion ratio (fcr), carcase yield (cy), lipid oxidation level in thigh meat samples, and blood constituents. 2. a total of 880 one-day-old pharaoh (coturnix coturnix pha ... | 2012 | 22404809 |
| novel picornavirus in domesticated common quail (coturnix coturnix) in hungary. | this study reports the detection of a novel picornavirus in domesticated common quail (coturnix coturnix) in hungary. the 8159-nucleotide (nt)-long rna genome of this virus, named quail picornavirus (qpv1-hun/2010; jn674502), shows only 43%, 39% and 47% amino acid (aa) identity in the p1 (857 aa), p2 (458 aa) and p3 (777 aa) coding regions respectively, to the closest reference, avian sapelovirus. the 5'utr contains a variant type iv ires with a 20-nt-long apical "8"-like structure that is conse ... | 2012 | 22170478 |
| bird terrestrial locomotion as revealed by 3d kinematics. | most birds use at least two modes of locomotion: flying and walking (terrestrial locomotion). whereas the wings and tail are used for flying, the legs are mainly used for walking. the role of other body segments remains, however, poorly understood. in this study, we examine the kinematics of the head, the trunk, and the legs during terrestrial locomotion in the quail (coturnix coturnix). despite the trunk representing about 70% of the total body mass, its function in locomotion has received litt ... | 2011 | 21982408 |
| effects of oral administration of l-methionine on activity/rest rhythm. | we describe a chronobiological study of the effects of the oral administration of the essential amino acid l-methionine to common quail ( coturnix coturnix ). this amino acid is a precursor of the neurotransmitter acetylcholine which is responsible for controlling and maintaining wakefulness through the ventrolateral pre-optic area of the hypothalamus and controlling the rem sleep in the nucleus reticularis pontinus oralis (nrpo). the quail model was chosen as these birds are monophasic and acti ... | 2010 | 20511132 |
| cyanide toxicity and interference with diet selection in quail (coturnix coturnix). | cyanide is a ubiquitous substance in the environment. most of the cyanide absorbed by an animal is detoxified by enzymatic combination with sulfur, thus the detoxification process imposes a nutritional cost. in mammals, interactions among nutrients and toxics may influence the composition of the diet and food intake, as a function of positive or negative post-ingestive feedback. the present work aimed to describe the toxic effects of cyanide, and to determine whether cyanide interferes with diet ... | 2010 | 19969102 |
| cloning of a novel ovalbumin gene from quail oviduct and its heterologous expression in pichia pastoris. | an ovalbumin gene was cloned from chinese quail (coturnix coturnix) oviduct by rt-pcr and then inserted into the p. pastoris genome under the control of the methanol inducible 5' alcohol oxidase (aox) promoter. the recombinant p. pastoris strain was demonstrated to be able to efficiently secrete quail ovalbumin by elisa analysis using a polyclonal antibody raised against quail ovalbumin. the results showed that induction by 0.75% methanol for 48 h led to the synthesis of secreted quail ovalbumin ... | 2009 | 19718678 |
| octopus gonadotrophin-releasing hormone: a multifunctional peptide in the endocrine and nervous systems of the cephalopod. | the optic gland, which is analogous to the anterior pituitary in the context of gonadal maturation, is found on the upper posterior edge of the optic tract of the octopus octopus vulgaris. in mature octopus, the optic glands enlarge and secrete a gonadotrophic hormone. a peptide with structural features similar to that of vertebrate gonadotrophin-releasing hormone (gnrh) was isolated from the brain of octopus and was named oct-gnrh. oct-gnrh showed luteinising hormone-releasing activity in the a ... | 2009 | 19210294 |
| selenium toxicosis assessment (in vivo and in vitro) and the protective role of vitamin b12 in male quail (coturnix coturnix). | the present study was undertaken to elucidate the toxicity induced by sodium selenite in male quail through in vivo and in vitro studies and the role played by vitamin b12 in alleviating selenium toxicity. administration of selenite orally for 1 month induced hepatic oxidative damage. selenite decreased body weight gain and increased relative liver weight. selenite reduced hemoglobin and iron concentrations and elevated total bilirubin concentration. serum transaminases and alkaline phosphatase ... | 2009 | 21791391 |
| naturally-occurring adenovirus-associated gastrointestinal lesions in coturnix (coturnix coturnix) quail. | farm-reared coturnix quail less than 3 weeks old showed depression, ruffled feathers, diarrhoea and high mortality. histological examination revealed basophilic intranuclear inclusion bodies mainly in the digestive tract, and rarely in the liver, kidney, nasal epithelium, conjunctiva and columnar epithelial cells within the mucosa of the bursa of fabricius. the inclusions were more numerous in the caeca than in the small intestine. ultrastructurally, they contained many adenovirus-like particles ... | 1998 | 18484054 |
| energetic trade-offs between immunity and reproduction in male japanese quail (coturnix coturnix). | we investigated a postulated trade-off between reproduction and immune function by comparing the energetic costs of an immune response with phytohemagglutinin challenge (or injection) in castrated (low testosterone [t]) and intact (high t) japanese quail (coturnix coturnix). intact birds had higher resting metabolic rate (rmr) and significantly lower immune response than castrates. rmr of intact birds did not change in response to an immune challenge, suggesting that maintenance of reproductive ... | 2007 | 17647272 |
| a novel motility pattern in quail spermatozoa with implications for the mechanism of flagellar beating. | the spermatozoon of the quail (coturnix coturnix l., var japonica) has a '9+2' flagellum that is unusually long. when it moves in a viscous medium, near to the coverslip, it develops a meander waveform. because of the high viscosity, the meander bends are static in relation to the field of view; bend propagation is therefore manifest as the forward movement of the flagellum through the meander shape. at the same time, the origin of the oscillation typically shifts proximally in a stepwise fashio ... | 2007 | 17561807 |
| gross morphological and histological features of larynx, trachea and syrinx in japanese quail. | this study aimed at observing gross morphological and histological characteristics of the larynx, trachea and syrinx in coturnix coturnix japonicum (japanese quail). sixteen mature quails were divided into two groups. eight animals were stained with 0.1% methylene blue for 15 min, followed by 50% and 70% ethyl alcohol solution for gross morphological examination. for the observation of histological characteristics the larynx, trachea and syrinx were fixed in 10% formaldehyde and embedded in para ... | 2007 | 17535355 |
| stable individual profiles of daily timing of migratory restlessness in european quail. | temporal characteristics of migratory behavior in birds are usually studied at the species and population levels, and rarely at the individual level. variations among species and populations of the seasonal onset of migratory behavior have been widely investigated, but very little is known about its daily organization or whether birds are conservative in their behavior. the determination of intra- and inter-individual variability is important for the study of genetic variations and can reveal th ... | 2007 | 17453846 |
| seasonal changes in plasma calcium and inorganic phosphate levels in relation to parathyroid structure of the grey quail, coturnix coturnix coturnix linnaeus. | plasma ca concentration (annual mean) in males coturnix cotumix coturnix was 10.27 +/- 0.14 mg/100 ml while it was slightly higher (11.85 +/- 0.15 mg/100 ml) among females. plasma pi levels (annual mean) in males and females were 5.62 +/- 0.12 mg/100 ml and 6.52 +/- 0.20 mg/100 ml, respectively. while the males did not exhibit marked fluctuation in plasma ca and pi levels either in winter or summer, the females did record significant elevation in the levels of both these electrolytes during bree ... | 2006 | 16850889 |
| quail poisoning in a child. | it has been well known since ancient times that the consumption of quail may be deleterious to health. the european quail sub-species (coturnix coturnix coturnix), common to europe, north africa, and western asia is indeed potentially poisonous to humans, but only during the autumn migration (not during their return flight in spring). quail poisoning is an acute dietary-toxicological syndrome. | 2011 | 16700632 |
| chronic toxic neuropathy after organophosphorus poisoning in quails (coturnix coturnix japponica). | peripheral neuropathy was induced by the long-term administration of organo-phosphorus compounds (phtalimid/phosmet) in quails (coturnix coturnix japponica). after 4 weeks, the first symptoms of organophosphorus (opc) poisoning (apathy, diarrhea) were present. during the second month of a daily administration of the toxic substance using the probe, an apparent clinical autonomic and peripheral neuropathy with ataxia had developed. toxic disturbance of the nervous system was confirmed by the exam ... | 2005 | 16541607 |
| protective effect of l-carnitine against oxidative damage caused by experimental chronic aflatoxicosis in quail (coturnix coturnix). | this study was designed to evaluate the effect of l-carnitine supplementation on the plasma malondialdehyde (mda) and whole blood reduced glutathione (gsh) concentrations in experimentally-induced chronic aflatoxicosis in quails. for this purpose, a total of 80 quails up to 8 weeks old were divided into four equal groups. group i served as control, group ii was given l-carnitine at the dose of 200 mg/litre in the drinking water for 60 days, group iii was given 60 microg total aflatoxin/kg diet f ... | 2005 | 16156127 |
| effects of recessive white plumage colour mutation on hatchability and growth of quail hatched from breeders of different ages. | 1. a total of 1200 eggs were obtained from two pure line stocks of 'wild' and 'recessive white' quail of the pharaoh strain (coturnix coturnix pharaoh), with two different breeder ages (17 or 34 weeks). the recessive white line was derived from mutant birds, which appeared spontaneously within the wild-type quail colony. 2. the analysis included plumage colour and breeder age as main effects together with their interaction. there were no significant effects for apparent fertility but hatchabilit ... | 2004 | 15697016 |
| effects of dietary combination of chromium and biotin on egg production, serum metabolites, and egg yolk mineral and cholesterol concentrations in heat-distressed laying quails. | chromium picolinate is used in the poultry diet because of its antistress effects in addition to the fact that the requirement for it is increased during stress. this study was conducted to determine if the negative effects of high ambient temperature (34 degrees c) on egg production, egg quality, antioxidant status, and cholesterol and mineral content of egg yolk could be alleviated by combination of chromium picolinate and biotin (0.6/2.0; diachrome, as formulated by nutrition 21 inc.), in lay ... | 2004 | 15557680 |
| vitamin e supplementation can alleviate negative effects of heat stress on egg production, egg quality, digestibility of nutrients and egg yolk mineral concentrations of japanese quails. | the aim of this study was to determine if the negative effects of high ambient temperature (34 degrees c) on egg production, egg quality, digestibility of nutrients, and mineral content of egg yolk could be alleviated by dietary vitamin e (dl-alpha-tocopheryl acetate) supplementation in laying japanese quails (coturnix coturnix japanica). japanese quails (n=240; 7-week-old) were divided into eight groups, 30 birds per group. the quails were fed either a basal diet or the basal diet supplemented ... | 2002 | 12443690 |
| chromium supplementation can alleviate negative effects of heat stress on egg production, egg quality and some serum metabolites of laying japanese quail. | this study was conducted to determine the effects of cr (chromium picolinate, crpic) supplementation at various levels (0, 200, 400, 800 or 1200 microg/kg of diet) on egg production, egg quality and serum concentrations of insulin, corticosterone and glucose in laying japanese quail (coturnix coturnix japanica) reared under conditions of heat stress (32.5 degrees c). laying japanese quail (n = 150; 45 d old) were divided into five groups of 30 birds. the quail were fed either a control diet cont ... | 2002 | 12042444 |
| neuroendocrine epithelial cells in the broncho-parabronchial transition of embryonic, immature and mature quail (coturnix coturnix). | the main objective of this integrated light microscopic, transmission and scanning electron microscopic study was to describe in greater detail the structural pattern and developmental stages of pulmonary neuroendocrine epithelial cells (pnecs) in the broncho-parabronchial transition (bpt) of both developing and mature quail. in mature quail the bpt appeared as a diaphragm opening into the parabronchial vestibulum. perpendicular sections revealed two bilayered crest-like entrance folds invested ... | 2001 | 11880935 |
| effect of melatonin supplementation on the sexual development in european quail (coturnix coturnix). | at the end of their wintering phase, male european quails were exposed to a stimulation photoperiod of light/dark 12:12 h for 10 days to induce sexual development. a daily oral melatonin supplementation was then given to one group of treated males (n=11) and the alcohol solvent was given to a control group of males (n=10). these solutions were provided during the final 3 h of the photophase for 28 days, then during the final 4 h for 18 days. there were no significant differences between the two ... | 2001 | 11254999 |
| a study of helical and planar waves on sea urchin sperm flagella, with a theory of how they are generated. | when the spermatozoon of echinus esculentus swims in sea water containing methyl cellulose (viscosity 1.5--4 pa s), its flagellum may generate either a helical or a planar waveform, each type being stable. the helical wave, which is dextral, is complicated by the concurrent passage of miniature waves along it. these miniature waves have a pulsatile origin in the neck region of the spermatozoon. our videotape analysis indicates that there are two pulses of mechanical activity for each true cycle ... | 2001 | 11249842 |
| cardiomyocyte ploidy levels in birds with different growth rates. | cytofluorimetric study of ploidy levels in ventricular cardiomyocytes was carried out on 36 adult bird species belonging to 10 orders as well as on the quail coturnix coturnix, of different ages. it was shown that polyploidization of quail cardiomyocytes occurs during the first 40 days after hatching and ends by the time growth is completed. in adult birds, the cardiomyocyte ploidy hardly changed at all. interspecies comparison revealed that in the adult bird myocardium 2cx2 myocytes are predomi ... | 2001 | 11169492 |
| circadian rhythm of activity during the annual phases in the european quail, coturnix coturnix. | migratory birds, such as the european quail, present an annual cycle with the following phases: moult, fattening, migration and reproduction. this study aimed at determining how variations in the circadian rhythm of feeding during the annual cycle took endogenous rhythmic characteristics into account. the birds (n = 8) were maintained under constant dim light from the age of 1 to 9 months. feeding activity was recorded using infra-red detectors. the birds expressed all the phases, except migrati ... | 2000 | 11072624 |
| lamellar inclusions and trilaminar substance in the parabronchial epithelium of the quail (coturnix coturnix). | the fine structure of the epithelial cells of the parabronchus and their secretory products have been the subject of many studies and have given rise to considerable controversy about their configuration and ultrastructure. the aim of the present study was to investigate the mode of formation and discharge of lamellar bodies of granular cells and the trilaminar substance produced and discharged by the embryologically related squamous atrial and respiratory epithelial cells. the material for ligh ... | 2000 | 10836095 |
| ultrastructural observations of the neurocytes in pterygopalatine ganglion of japanese quail (coturnix coturnix v. japonica). | cells of the pterygopalatine ganglion in quail are elliptical, oval and often spindle shape. they have single nuclei, which are spindle or lentiform in shape. the rough endoplasmic reticulum was observed in a great amount, especially in the vicinity of nucleus. it was organised in structure corresponding to nissl's body. the mitochondria are present mainly at the periphery of the cells. several flat, elongated cisterns form the golgi apparatus. there are a few lysosomes, mostly primary ones. pro ... | 1999 | 10598402 |
| the development and differentiation of the parabronchial unit in quail (coturnix coturnix). | the present study has been inspired by the conflicting data in the relevant literature concerning the embryogenesis of cell types of the parabronchial epithelium and the formation, discharge and distribution of trilaminar substance and lamellar bodies. lung tissue from embryonic, newly hatched, immature and mature quail was subjected to standard processing for light and transmission electron microscopy. the parabronchial rudiments form shallow primitive atria on embryonic day 13. the precursors ... | 1998 | 10099950 |
| an sem and tem study of the transition of the bronchus to the parabronchus in quail (coturnix coturnix). | the main objective was to analyse the transition of the bronchus to the parabronchus in birds and to describe its specific structure in an integrated light microscopic, transmission electron microscopic (tem) and scanning electron microscopic (sem) study. lung tissue from immature and mature quail was subjected to standard processing for paraffin light microscopy, tem and sem after intratracheal inflation with fixative. in transverse paraffin and durcupan semithin sections, the partition incompl ... | 1998 | 9728268 |
| growth rate of different sexes of the european quail (coturnix coturnix). | 1. the gompertz equation was used to described the growth of the european quail (coturnix coturnix) from hatching until 107 d of age. 2. differences (p< 0.05) in growth existed between sexes. mature mass values of 148.0 +/- 3.00 and 191.9 +/- 5.35 g respectively were found for males and females. males reached maximum growth at 13.4 +/- 0.33 d while a value of 16.4 +/- 0.46 d was found for females. 3. a plateau in daily food intake was reached when the time of mature mass was approached. | 1997 | 9280362 |
| water transport in collecting ducts of japanese quail. | previously, we reported that the countercurrent urine concentration mechanism in birds appears to operate by recycling of a single solute (nacl), in which the thick ascending limb of looped nephrons provides an energy source. to determine the importance of the medullary collecting duct (mcd) in the countercurrent multiplier system, we examined in isolated and perfused mcds from japanese quail, coturnix coturnix, the osmotic and/or diffusional water permeability and whether arginine vasotocin (av ... | 1996 | 8997350 |
| n-acetyltransferase activity in the quail (coturnix coturnix jap) duodenum. | the activity and kinetics of n-acetyltransferase (nat) in the quail duodenum were studied by radioenzymatic assay. nat activity was highest when incubated under 37 degrees c, at ph 5.8 for 15 sec. of the four substrates tested (tryptamine, 5,6-dihydroxytryptamine, serotonin, and n-acetylserotonin at concentrations of 0.08-4 mm), only tryptamine showed the substrate saturation phenomenon when incubated with the duodenal enzyme and acetyl-14c-coenzyme a. the saturation concentration of tryptamine ... | 1995 | 7584855 |
| control of sodium and chloride transport in the thick ascending limb in the avian nephron. | we previously reported that birds may concentrate urine by a countercurrent multiplier mechanism using single-solute (nacl) recirculation, in which the thick ascending limb of henle (tal) of mammalian-type nephrons provides an energy source. the japanese quail tal has a higher lumen-to-bath cl flux (jcl,lb) than that of mammals; the mechanism for maintaining the osmotic gradient along the medullary cone is unknown. we investigated whether salt delivery alters the nacl reabsorption rate in the ta ... | 1994 | 8067454 |
| the pulmonary neuroepithelial endocrine system in the quail, coturnix coturnix. light- and electron-microscopical immunocytochemistry and morphology. | despite extensive knowledge of the neuroepithelial endocrine (nee) system in the lungs of species of various vertebrate classes, data on avians are limited. the present investigation deals with the light- and electron-microscopical immunocytochemistry and morphology of pulmonary nee cells in the quail, coturnix coturnix. light-microscopically, serotonin immunoreactivity was detected in numerous solitary and clustered nee cells located in the cilio-mucous epithelium of primary and secondary bronc ... | 1994 | 7913590 |
| the role of eggs in mercury excretion by quail coturnix coturnix and the implications for monitoring mercury pollution by analysis of feathers. | : this paper describes differences in the excretion of methyl mercury between male and female quail coturnix coturnix after a single dose. since feathers are often used to monitor mercury pollution it is important to take into account biases in feather mercury levels that may arise as a result of mercury loss through egg-laying. evidence is presented to support the use of bird eggs to sample for environmental mercury contamination. birds were monitored up to twelve weeks after administration. me ... | 1993 | 24203119 |
| effects of handling and pair management on reproduction in japanese quail (coturnix coturnix ). | three experiments were designed to study the effects of handling, pairing, and frequency of mating opportunities on reproduction in japanese quail (coturnix coturnix ) when the sexes were caged separately except during the 90 minute mating periods. in experiments 1 and 2, 48 females and 48 males were allocated randomly to one of four treatments: 1) continuously paired, 2) paired daily with the same male, 3) paired daily with a different male, and 4) paired every third day with the same male. in ... | 1992 | 16727087 |
| stilbestrol as a factor modifying the toxicity of ekatin for the pharaoh quail (coturnix coturnix pharaoh). i. young birds. | 1. the noted fall of the erythrocyte count, haemoglobin and haematocrit levels after stilbestrol indicate that this hormone disturbs erythropoiesis, probably by depressing the maturation of erythroid cells in the bone marrow. 2. the reaction of the erythrocyte system of birds intoxicated with ekatin indicates that this pesticide has a haemolytic influence on the morphotic elements of the blood. 3. estrogenisation enhances the action of ekatin on the erythrocyte system by as it seems increasing t ... | 1991 | 1687558 |
| ganglion cell loss continues during hair cell regeneration. | hair cells and ganglion cells were counted in young adult quail (coturnix coturnix) after acoustic trauma at 10, 30, 60 and 90 day survival times. following sacrifice the basilar papillae, along with the ganglia, were fixed, embedded in plastic and sectioned serially at 100 mu intervals from basal to apical tip. hair cells and ganglion cells were counted from 3 mu thick sections at each interval. hair cells were designated as tall or short within the area 30-70% of length from basal tip of the p ... | 1989 | 2613569 |
| sodium chloride and water transport in the thin descending limb of henle of the quail. | birds and mammals can produce hyperosmotic urine, but their renal morphology and urine-concentrating mechanisms differ. to elucidate the countercurrent urine concentration mechanism in birds, we examined the structure and transport properties of the descending limb (dl) of henle of mammalian-type nephrons in japanese quail, coturnix coturnix. in the avian renal medulla, a prominent ring of collecting ducts and scattered thick limbs surrounds a core of capillaries and dls. epithelial cells in the ... | 1989 | 2603965 |
| testosterone as a factor modifying the toxicity of ekatin for the pharaoh quail (coturnix coturnix pharaoh). i. mature birds. | 1. testosterone reduces the haemolytic action of ekatin on the morphotic blood elements by accelerating maturation of erythroblastic cells. 2. testosterone, by accelerating the metabolism of the pesticide causes a defective defence processes of the organism by decreasing the number of macrophages. 3. intoxication of androgenised birds with ekatin leads to a breakdown of the systemic adaptive mechanisms by rapid and early switching on the adrenal cortex in response to the stress caused by poisoni ... | 1989 | 2566450 |
| mallophaga of quails (coturnix coturnix) in egypt. | | 1988 | 3418167 |
| ganglion cell and hair cell loss in coturnix quail associated with aging. | hair cells and ganglion cells were examined in young adult (3 month old) and senescent (3 to 6 year old) quail (coturnix coturnix). following sacrifice the basilar papillae, along with the ganglia, were fixed, embedded in plastic and sectioned serially at 100 micron intervals from basal to apical tip. hair cells and ganglion cells were counted from three micron thick sections at each interval. hair cell number remained constant between age groups (less than 10% loss even in the oldest group). ga ... | 1988 | 3198518 |
| the dose-dependent deposition of cadmium into organs of japanese quail following oral administration. | the accumulation and disposition of cd2+ as cdcl2 administered orally to japanese quail (coturnix coturnix) was investigated. birds received 0.01, 0.10, 1.0, 50, 500, 5000, or 50,000 micrograms cd/kg/day for 4 consecutive days by gastric tube, and were killed 4 days after the final dose. the percentage of the total administered dose recovered in liver + kidneys + duodenum was 0.7% or less in all but the highest dose, for which recovery was approximately 2%. only at the highest dose did the hepat ... | 1988 | 3413792 |
| morphotic composition of bone marrow and peripheral blood in various periods of the life cycle of the pharaoh quail (coturnix coturnix pharaoh). ii. peripheral blood: the red blood cell system. | | 1988 | 3169306 |
| morphotic composition of bone marrow and peripheral blood in various periods of the life cycle of the pharaoh quail (coturnix coturnix pharaoh). iii. peripheral blood-white blood cell system. | | 1988 | 3169305 |