Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 122 for “"Quail"”.
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Methods of predicting quail population changes
… shooting merely utilities a portion of the quail population which would normally be lost to other decimating factors, Apparently, a controlled harvest does not ultimately affect the general trend of the population curve, These studies also indicate that the later the harvest is carried out …
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Imunnoresponsiveness in Japanese quail and chickens
… immune responsiveness was studied in Japanese quail and White Plymouth Rock chicken populations. Quail populations consisted of a randombred control (C) line and a line selected for high (HW) 28-day body weight. The chicken populations used were lines selected for high (HW) and low (LW) 56-day …
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Maternal thyroid hormones in Japanese quail eggs
Thyroid hormone content in eggs varies with the thyroid status of the hen and may influence embryonic development prior to the release of appreciable amounts of thyroid hormones by the embryonic thyroid gland. Methods for the measurement of thyroid hormones in egg yolk were verified by …
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Behavior-genetic analyses in Japanese quail chicks
… affecting tonic immobility in young Japanese quail. Both duration and incidence of tonic immobility were measured on each bird at six days and again at 12 days of age. A significant line effect was found at both ages, and rankings of these lines for duration and incidence followed a similar …
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Cultivation of Eimeria Dispersa in Bobwhite Quail Embryos
… oocysts of Eimeria dispersa from the Bobwhite quail (Colinus virginianus), to study the endogenous development of E. dispersa in Bobwhite quail embryos, and to examine the cross-transmission properties of this species for turkeys, chickens, and Japanese quail. Procedure. Oocysts, isolated from …
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Fate Of Captive-Reared Bobwhite Quail Released In Central Kentucky
<p>The fate of pen-raised bobwhite quail (Colinus virginianus) released onto two farms (Site 1 and 2) and a reclaimed coal surface mine (Site 3) in south-central Kentucky during the summers of 2008 and 2009 was assessed. Of the 57 bobwhite quail radio-tagged and released in this study, the fate of …
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Winter survival of the bobwhite quail on its intermediate range
no abstract provided by author
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Effects of lead ingestion on the immune function in quail
… of acute lead exposure on immune function in 2 quail species, Japanese quail (Cotumix coturllix) and northern bobwhites (Colinus virginianus), were investigated. In preliminary experiments, intubation with lead shot produced inconsistent doses within treatment groups. Both quail species …
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Fat deposition in relation to sexual maturation of Japanese quail
… of sexual maturity were studied in Japanese quail (Coturnix coturnix japonica). In an initial experiment, body composition and sexual maturity were examined in response to photoperiodic and hormonal manipulations. Attempts were made to modify body composition, and thereby age at sexual …
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Immunomodulation by dietary lipids: soybean oil, menhaden fish oil, chicken fat, and hydrogenated soybean oil in Japanese quail (Coturnix coturnix japonica) and Bobwhite quail (Colinus virginianus)
… in the immunological status of both Japanese quail (JAP) and Bobwhite quail (BOB). The SBO diet, in which 66% of the total fatty acids were polyunsaturated fatty acids (PUFA), was rich in linoleic acid (LA 18:2 n-6), alpha-linolenic acid (ALA 18:3 n-3) and low in saturated fatty acid (SFA). …
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Modified postnatal social experience alters intersensory development of bobwhite quail chicks
… utilized a precocial avian infant, the bobwhite quail (Colinus virginianus), to explore 1) what types of postnatal social experience young chicks require to successfully pair sights and sounds and 2) when these experiences need to occur to maintain species-typical intersensory development. …
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Auditory and visual determinants of maternal preference in bobwhite quail neonates
… of filial behavior was examined in bobwhite quail chicks during the first 4 days of postnatal life. Previous research has revealed that bobwhite quail hatchlings are differentially responsive to their species-specific maternal call in the period right before and immediately following hatching …
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Chromosomal inversions and common quail diversification in Macaronesian archipelagos and the mainland
… polymorphisms within the highly mobile common quail (Coturnix coturnix), and the impact these structural changes have on the population fragmentation, species diversification and on its genome evolution. Since the assessment of the gene flow between populations is a key element to understand …
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A study of the winter survival of bobwhite quail under natural conditions
no abstract provided by author
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Effects of embryonic exposure to androgen-active endocrine disrupting chemicals in Japanese quail
… of the bursa of Fabricius in Japanese quail, providing a possible mechanism for EDC-induced immunosuppression. The bursa is a primary immune organ responsible for development of the humoral part of the immune system. We have also demonstrated that the bursa can be resilient to embryonic …
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Genetic analyses of reproductive behavior in the domestic fowl and the Japanese quail
… of sexual behavior in chickens and Japanese quail. The populations used in this research included lines that had undergone over 20 generations of divergent selection for high and low mating frequency and the random bred control population from which the selected lines originated. In the first …
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Blood characteristics as predictors of reproductive success in quail species exposed to DDT
… pesticide, and reproductive success in Japanese quail (Coturnix coturnix japonica) or northern bobwhites (Colinus virginianus). The utility of vitellogenin as a biomarker in northern bobwhites was investigated. Female northern bobwhites were dosed with 0, 1, 10, or 100 μg DDT/g body weight via …
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Neural Plasticity and the Development of Intersensory Functioning in Bobwhite Quail (Colinus virginianus)
… responsiveness to maternal cues in bobwhite quail chicks. Results revealed that the pattern of neuronal organization and postnatal behavior was influenced by the amount of prenatal visual experience subjects were provided. Specifically, chicks exposed to 240 min of prenatal visual stimulation …
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Social context affects behavioral responsiveness to maternal alarm calls in Bobwhite quail chicks
… of maternally naive, incubator-reared bobwhite quail chicks. Experiment 1 assessed alarm call responsiveness in socially-reared, socially-tested hatchlings across the first 96 hours following hatch. No significant age effects were revealed. Hatchlings tested at 24 hours did not differ …
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