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Medidas de Eficiência Alimentar para Avaliação de Bovinos de Corte

DOI: http://dx.doi.org/10.18188/1983-1471/sap.v13n2p95-107

http://e-revista.unioeste.br/index.php/scientiaagraria/index 

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Miguel H. de A. Santana1, Rodrigo da C. Gomes2, José B. S. Ferraz1 & Paulo Rossi Junior3

 

Resumo: A eficiência da conversão de alimentos em produtos de origem animal é importante para a lucratividade e sustentabilidade dos sistemas de produção de bovinos de corte. Nas últimas décadas houve um interesse maior pelo estudo de características que expressam a eficiência alimentar, principalmente o consumo alimentar residual (CAR). Esses estudos nortearam essa revisão que aborda os resultados e implicações da seleção baseada no CAR e também as novas perspectivas nos estudos com eficiência alimentar em bovinos de corte.

Palavras-chave: características de carcaça, consumo alimentar residual, marcadores moleculares, metabolismo.

 

Abstract: The converting efficiency of feed into products of animal source is an important issue for the profitability and sustainability of the beef cattle production systems. During the last decades, there has been an increased interest at the study of features that can express the feed efficiency, especially the residual feed intake (RFI).These studies guided this review which discusses the results and implications of the genetic selection based on RFI, and also the new perspectives in the studies of feed efficiency in beef cattle.

Key words : carcass features, residual feed intake, molecular markers, metabolism.

 

1 Faculdade de Zootecnia e Engenharia de Alimentos – USP, Av. Duque de Caxias Norte 225, CEP 13635-900, Pirassununga/SP. E-mail: mhasantana@usp.br e jbferraz@usp.br. *Autor para correspondência
2 Empresa Brasileira de Pesquisa Agropecuária, CNPGC/EMBRAPA, BR 262 km 4, CEP 79002-970, Campo Grande/MS. E-mail: gomes_rc@hotmail.com
3 Universidade Federal do Paraná – SCA/UFPR, Rua dos Funcionários 1550, CEP 80035-050, Curitiba/PR. E-mail: parossi@ufpr.br

 

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