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Parâmetros genéticos para características de aleitamento e desmama em bovinos simental

Authors: REIS MOTA, Rodrigo; AARÃO MARQUES, Luiz Fernando; BASTOS TEIXEIRA, Bruno; DE OLIVEIRA PACHECO, Rodrigo; SÁVIO LOPES, Paulo;

Parâmetros genéticos para características de aleitamento e desmama em bovinos simental

Abstract

Portuguese: A obtenção de componentes de variância e parâmetros genéticos é de extrema importância para estimar respostas diretas e correlacionadas à seleção, elaborar índices de seleção e predizer valores genéticos dos animais e assim selecionar animais geneticamente superiores. Objetivou-se estimar os componentes de variância e os parâmetros genéticos para os pesos aos 100 (P100) e 205 (P205) dias de idade da raça Simental. Os dados utilizados foram cedidos pela ABCRSS e constituíam de 29.510 pesagens individuais realizadas em torno dos 100 e 205 dias de idade, correspondentes a 10.659 animais. Análises uni e bicaracterística foram realizadas sob um modelo animal e os componentes de variância e parâmetros genéticos foram estimados pelo método REML. As estimativas de herdabilidades em P100 e P205 foram respectivamente, 0,08 e 0,16 para análise bicaracterística e 0,08 e 0,17 para análise unicaracterística e a correlação genética foi positiva e igual à unidade. Na fase inicial de crescimento dos animais, as estimativas de herdabilidades foram baixas e a correlação genética entre P100 e P205 indica que a seleção pode ser praticada somente aos 100 dias de idade

Country
Belgium
Related Organizations
Keywords

correlação genética, herdabilidade, peso corporal, Sciences du vivant, Animal production & animal husbandry, ganho genético, Life sciences, Productions animales & zootechnie

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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