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 12 of 12 for “"Breeding animals"”.
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Social suppression of reproduction in the naked mole-rat, Heterocephalus glaber : -Plasma LH concentrations and differential pituitary responsiveness to exogenous GnRH
… active soon after removal from the colony. The breeding female controls reproductive suppression in the non-breeding animals, and both males and females are sensitive to her presence and reproductive state. The breeding female is thought to maintain reproductive suppression in the non-breeding …
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An Attempt to Develop Resistance in the Udder Against Streptococcus Dysgalactiae and Escherichia Coli
<p>The problem of mastitis in dairy animals has received much attention in recent years. As the business of dairying has developed and grown, mastitis has become more significant to the farmer and the processor. The economic loss from reduced production and sale of milk, loss of breeding animals, …
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Genetic Parameters for Udder and Teat. Type Traits in Icelandic Cattle Breed
… teat structure and teat tip are not included in breeding value estimations. The main objective of this study was to estimate genetic parameters for udder and teat type traits of Icelandic Cattle, but also to describe the traits’ phenotypic structure, to estimate their genetic trends, and to …
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Caprinos leiteiros registrados da Paraíba – situação atual
… data on quantitative or distribution of pure animals registered in Paraíba, and this is our only gene bank, with breeding animals, it would be impossible to study genetic improvement. This work aims to survey the population of pure animals registered in the State of Paraíba, as well as their …
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Exploring the fathering brain: insights from neural activation
… In addition to day-to-day activities, breeding animals must establish a territory, find a mate, find a place to raise offspring, mate and rear offspring. While organisms are breeding, they also have to behave appropriately to conflicting stimuli. For example, a parent may shift from …
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Assessment of the demographics and network structure of swine populations in relation to regional disease transmission and contro.
… As a result, large numbers of growing pigs and breeding animals move from one location to another on a daily basis. The health of the national swine herd has improved dramatically, due in large part to this new production structure; but the increased network size and the long distances travelled …
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Using activity budgets and space use preferences to define enclosure appropriateness for African painted dogs, Lycaon pictus (Temminck 1820)
… habitat is lost, the need for keeping and breeding animals in zoological gardens is increasing. For animal welfare reasons and to promote health and effective breeding having as close to natural enclosures has become essential on zoological gardens. A clear understanding of how an animal …
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DEVELOPMENT OF NOVEL BIOTECHNOLOGICAL APPROACHES FOR ACCELERATING GENETIC GAIN IN THE BOVINE
… gain in cattle (Bos taurus) is essential for breeding animals that are more resilient to climate change, more resistant to disease, and capable of higher meat and milk productivity—all while minimizing their environmental footprint. One possible strategy to achieve this goal is to …
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L'epatite E nei suidi: epidemiologia, diagnosi e filogenesi
… in Italian swine herds (both in fattening and in breeding animals); investigate the possibility of finding HEV in livers used for human consumption; investigate if there is any correlation between HEV infection and the presence of macroscopical lesions; investigate HEV prevalence in a demographic …
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Analysis of Inbreeding in a Closed Population of Crossbred Sheep
… diversity and the effect of lamb and dam inbreeding on multiple traits were analyzed in an 11-yr closed population of sheep established in 1983 and remained closed after 1987, with 50% Dorset, 25% Rambouillet, and 25% Finnsheep breeding to determine selection response for spring fertility. …
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Cadmium and lead concentrations in livers and kidneys of cattle slaughtered at Grootfontein abattoir in Namibia
… and tissues. The cattle in the study were mature breeding animals (>5 years) and it is likely that this factor increased the risk of higher levels in kidneys as temporal determinants for bioaccumulation of Cd are important. The kidneys of younger animals would thus be less likely to contain …
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Avaliação do processo espermatogênico de gatos-mouriscos (Puma yagouarundi, Lacépède, 1809) adultos
As pesquisas morfofuncionais sobre o testículo aliadas aos estudos em endocrinologia, embriologia e criopreservação de gametas, produzem informações que podem ser aplicadas na reprodução assistida, favorecendo o desenvolvimento de metodologias utilizadas na conservação de espécies. Os objetivos …