PRODUCTIVE PERFORMANCE OF PRE-WEANED CALVES REARED IN THE PANTANAL

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DOI:

https://doi.org/10.1590/cab20151187

Keywords:

Produção de Bezerros de Corte

Abstract

Early weaning (EW) has been adopted in cattle breeding farms in Pantanal as a strategy to increase the rate of pregnancy in cows. The primary income of these properties is the production of beef calves, and the price of these animals depends on their weight. Therefore, the calves subjected to EW should present weight similar to or higher than those of calves subjected to conventional weaning (CW). This study aimed to evaluate the productive performance of pure (Nellore) calves and crossbred (Nellore/Angus) calves reared in the Pantanal and subjected to either EW or CW. After EW, the calves were supplemented with concentrate at 1 kg/animal/day (low-energy diet) or 1% of live weight (high-energy diet). The weights adjusted to 300 days of age were higher for EW calves fed the high-energy diet (p<0.01) in both genetic groups. No significant differences were observed in the weight of EW animals fed the low-energy diet and CW animals (p>0.01), and animal weight was 241.17 and 236.27 kg in crossbred calves and 184.44 and 189.78 in Nellore calves, respectively. The EW adopted in this experimental model did not affect the productive performance of calves raised in the Pantanal.
Keywords: Nutrition, beef calves, supplementation.

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Author Biographies

Luiz Orcirio Fialho de Oliveira, UFV/UFMS/UFMG/Embrapa

Engenheiro Agrônomo, Médico Veterinário e Doutor em Ciência Animal. Atualmente Pesquisador A na Embrapa Gado de Corte

Urbano Gomes Pinto de Abreu, Embrapa Pantanal

Médico Veterinário, doutor em Produção Animal. Pesquisador da Embrapa Pantanal

Rodrigo da Costa Gomes, Embrapa Beef Cattle, Campo Grande, MS, Brazil

Scientific Researcher in Ruminant Nutrition at the Brazilian Agricultural Research Corporation (Embrapa), Embrapa Beef Cattle, Campo Grande, MS, Brazil

Ériklis Nogueira, Embrapa Pantanal

Médico Veterinário, doutor em reprodução animal. Pesquisdor da Embrapa Pantanal

Juliana Correa Borges Silva, Embrapa Pantanal.

Médica Veterinária, doutora em reprodução animal. Pesquisadora da Embrapa Pantanal.

Tereza Gabriela Costa, UFMS

Zootecnista. Aluna de mestrado do curso de Ciência Animal da UFMS

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Published

2019-01-18

How to Cite

OLIVEIRA, L. O. F. de; ABREU, U. G. P. de; GOMES, R. da C.; NOGUEIRA, Ériklis; SILVA, J. C. B.; COSTA, T. G. PRODUCTIVE PERFORMANCE OF PRE-WEANED CALVES REARED IN THE PANTANAL. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 20, p. 1–12, 2019. DOI: 10.1590/cab20151187. Disponível em: https://revistas.ufg.br/vet/article/view/e-51187. Acesso em: 17 jul. 2024.

Issue

Vol. 20 (2019): Continuous publication

Section

ZOOTECNIA

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