PERFORMANCE AND CARCASS TRAITS OF CROSSBRED HEIFERS FROM THREE GENETIC GROUPS FED CORN OR SORGHUM SILAGE BASED DIETS

Authors

  • Wagner Azis Araújo Universidade Federal de Viçosa
  • Pedro Veiga Paulino Universidade Federal de Viçosa
  • Marcos Inácio Marcondes Universidade Federal de Viçosa
  • Carlos Guilherme Vasconcelos Carvalho Universidade Federal de Viçosa
  • Francisco Carlos de Oliveira Silva Universidade Federal de Viçosa

DOI:

https://doi.org/10.5216/cab.v12i1.12229

Keywords:

Animal production

Abstract

This study aimed to evaluate the carcass quality and the weight gain of crossbred heifers from three genetic groups, fed corn or sorghum silage. Eighteen heifers, 6 originated from crossbreds between ½ Holstein/Gir cows and Gir bulls (TGG: 3/4 Gir and  ¼ Holstein), six from crossbreds between ½ Holstein/Gir cows and Nellore bulls (TNG: ½ Nellore, ¼ Gir and ¼ Holstein), and six from crossbreds between ½ Holstein/Gir cows and Guzera bulls (TUG: ½ Guzera, ¼ Gir and ¼ Holstein).  The animals were distributed in a completely randomized design, in a 3 x 2 factorial arrangement, with three genetic groups. Daily weight gain, intake, and feed conversion were estimated.  At the beginning and end of the experiment, the ribeye area (REA), the subcutaneous fat between 12th and 13th ribs (SFBR), and the subcutaneous fat under the Biceps femoris muscle (SFBFM) were obtained by ultrasound.  The genetic groups did not influence the variables evaluated. Corn silage diets provided a higher performance than the sorghum silage diets.

KEYWORDS: Carcass quality, crossbred animals, roughage fraction of the diet, weight gain.

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Author Biographies

Wagner Azis Araújo, Universidade Federal de Viçosa

Departamento de Zootecnia

Pedro Veiga Paulino, Universidade Federal de Viçosa

Departamento de Zootecnia

Marcos Inácio Marcondes, Universidade Federal de Viçosa

Departamento de Zootecnia

Carlos Guilherme Vasconcelos Carvalho, Universidade Federal de Viçosa

Empresa de Pesquisa Agropecuária de Minas Gerais

Francisco Carlos de Oliveira Silva, Universidade Federal de Viçosa

Empresa de Pesquisa Agropecuária de Minas Gerais

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Published

2011-03-31

How to Cite

ARAÚJO, W. A.; PAULINO, P. V.; MARCONDES, M. I.; CARVALHO, C. G. V.; SILVA, F. C. de O. PERFORMANCE AND CARCASS TRAITS OF CROSSBRED HEIFERS FROM THREE GENETIC GROUPS FED CORN OR SORGHUM SILAGE BASED DIETS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 12, n. 1, p. 101–107, 2011. DOI: 10.5216/cab.v12i1.12229. Disponível em: https://revistas.ufg.br/vet/article/view/12229. Acesso em: 27 jul. 2024.

Issue

Vol. 12 No. 1 (2011)

Section

Animal Production

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