Inbreeding Trends
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Estrutura populacional e tendÃncias genÃtica e fenotÃpica da raÃa Guzerà criada no Nordeste do Brasil / Population genetic structure and trends and race phenotype of Guzera created in Northeastern Brazil
A pesquisa foi realizada com o objetivo de avaliar geneticamente os zebuÃnos da raÃa Guzerà de corte do Nordeste brasileiro, nascidos entre 1976 e 2007, por meio do estudo da estrutura populacional, estimaÃÃo dos parÃmetros genÃticos aos 205(P205), 365(P365) e 550(P550) dias de idade e anÃlise do comportamento das linhas de tendÃncia genÃtica, feno
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2008
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2. Aspectos genéticos e fenotípicos de características produtivas, temperamento e repelência em bovinos da raça Nelore / Phenotypic and genetic aspects to productive traits, temperament and resistance in Nelore beef cattle
The general aim of this study was evaluated phenotypic and genetic aspects to growth traits, temperament and resistance in Nelore beef cattle. The traits analyzed in this study were birth weight (BW, N=13,374), weaning weight (WW, N=19,835), weight to over year (W18M, N=15,291), weight gain from weaning to over year (WG345, N=12,873), differentiated weight g
Publicado em: 2008
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3. Hirado: temporal trends in inbreeding and fertility.
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4. Effects of Population Size and Selection Intensity on Responses to Disruptive Selection in DROSOPHILA MELANOGASTER
Disruptive selection for sternopleural bristle number with opportunity for random mating was done in the four treatment combinations of two population sizes (40 pairs and 8 pairs of selected parents) and two selection intensities (1 in 40 and 1 in 2). In each generation, matings among selected parents were observed in a mating chamber, and progeny collected