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Correlações genéticas entre algumas características de tipo e intervalo de partos em vacas da raça Holandesa

Authors: Silva, R.P.A.; Thaler Neto, A.; Cobuci, J.A.; Valloto, A.A.; Horst, J.A.; Ribas Neto, P.G.;

Correlações genéticas entre algumas características de tipo e intervalo de partos em vacas da raça Holandesa

Abstract

Estimaram-se correlações genéticas entre algumas características de tipo e intervalo de partos (IP) em vacas da raça Holandesa no Estado do Paraná. Foram analisados registros de conformação de 23.014 vacas, classificadas no período de 2000 a 2010, oriundas de 248 rebanhos, filhas de 797 touros. Os componentes de variância necessários para obtenção das estimativas das herdabilidades e das correlações genéticas foram obtidos pelo método da Máxima Verossimilhança Restrita (REML), utilizando-se o procedimento MIXED do pacote estatístico SAS. As estimativas de herdabilidade para as características de tipo variaram de 0,09 a 0,24 e para IP foi 0,05. As estimativas de correlação genética entre as características de tipo foram, em geral, de pequena magnitude, sendo o maior valor observado entre largura de peito e profundidade corporal (0,52). As estimativas de correlação genética entre as características de tipo e IP foram, em sua maioria, de pequena magnitude. A baixa correlação genética entre ângulo de garupa e IP (0,02) sugere que a seleção para ângulo de garupa pode não ser efetiva em determinar ganho genético para fertilidade.

Keywords

conformation, fertility, bovinos de leite, seleção, conformação, dairy cattle, selection, Fertilidade animal, SF1-1100, Animal culture, Fertility, Dairy cattle, Genética animal, Conformation, fertilidade, Selection

  • BIP!
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    citations
    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).
    3
    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.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
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!
3
Average
Average
Average
Green
gold