Productive and reproductive performance of crossbred Holstein x Gir cows

Authors

  • Alexandre Balancin Júnior Instituto de Zootecnia, Nova Odessa, SP
  • Marco Aurélio Prata Instituto de Zootecnia, Nova Odessa, SP
  • Heverton Luis Moreira Instituto de Zootecnia, Nova Odessa, SP
  • Aníbal Eugênio Vercesi Filho Instituto de Zootecnia, Centro de Pesquisa Bovinos de Corte, Sertãozinho, SP
  • Vera Lúcia Cardoso Agência Paulista de Tecnologia dos Agronegócios, Polo Regional Centro Leste, Ribeirão Preto, SP
  • Lenira El Faro Instituto de Zootecnia, Centro de Pesquisa Bovinos de Corte, Sertãozinho, SP

DOI:

https://doi.org/10.17523/bia.v71n4p357

Keywords:

dairy cattle, lactation curve, heterosis, crossbreeding systems

Abstract

This study aimed to evaluate the productive and reproductive performance of Holtein-Frisian x Gir crossbred cows. The traits evaluated were: milk production up to 305 days (P305), total milk production (PTL), production per day of calving interval (PIP), age at first calving (IPP), calving interval (IDP), service period (PS) and gestation length (PG), which were analyzed using mixed linear models. The Incomplete gamma function was used to estimate the parameters of lactation curves for each genetic group. The animals of genetic groups (GG) 3/4H, 7/8H and pure by crosses (PC) achieved higher performances for productive traits, and animals from the GG 1/2H achieved better performance for reproductive traits. The Holstein-Frisian PC animals presented the lactation curves with higher production levels and higher productions at the peak of the lactation but with less persistence. The 1/2H animals had slightly lower persistence in comparison to genetic groups 3/4H and 7/8H. Milk production in function of gestation length varied according to each group and Holstein-Frisian (PC) presented greater decrease in milk yield after conception.

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Published

2014-04-22

Issue

Section

ANIMAL BREEDING

How to Cite

Productive and reproductive performance of crossbred Holstein x Gir cows. (2014). Bulletin of Animal Husbandry, 71(4), 357-364. https://doi.org/10.17523/bia.v71n4p357

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