EVALUATION OF THE GENETIC COMPONENT ON THE PHENOTYPIC EXPRESSION OF PRODUCTION TRAITS IN NELLORE CATTLE SUBMITTED TO PERFORMANCE TEST

Authors

  • Carina Ubirajara Faria Universidade Federal de Uberlândia
  • Cristiane de Fátima Pereira Universidade Federal de Uberlândia
  • Rosiane Pereira da Silva Universidade Federal de Uberlândia
  • Denis Douglas Pessoa Universidade Federal de Uberlândia
  • Cláudio Ulhôa Magnabosco Embrapa Cerrados
  • Raysildo Barbosa Lôbo Associação Nacional de Criadores e Pesquisadores

DOI:

https://doi.org/10.1590/cab18030528

Keywords:

Animal Improvment

Abstract

The objective of this study was to evaluate the effect of the genetic component on the phenotypic expression of productive traits of Nellore cattle submitted to the individual performance test. The data used came from 51 young bulls participating in the individual performance test of Nellore bulls held at the Capim Branco experimental farm of the Federal University of Uberlândia. The evaluated traits were weight and scrotal circumference standardized at 365 and at 450 days of age, the longissimus muscle area, and the backfat thickness. The expected progeny differences of the animals and the sires were considered to evaluate the contribution of the genetic component. Variance analysis was performed through the General Linear Model procedure of the Statistical Analysis System to verify the effects of the genetic groups on the productive performance. The progenies of bulls with greater genetic potential tend to present better productive performance. In conclusion, the use of genetically superior animals allows better zootechnical indexes to be obtained, reflecting higher gains in herd productivity.
Keywords: beef cattle; breeding value; productivity, selection.

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Author Biographies

Carina Ubirajara Faria, Universidade Federal de Uberlândia

Docente da Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia, área em Melhoramento Genético Animal

Cristiane de Fátima Pereira, Universidade Federal de Uberlândia

Mestranda do Programa de Pós-Graduação em Ciências Veterinárias da Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia

Rosiane Pereira da Silva, Universidade Federal de Uberlândia

Mestranda do Programa de Pós-Graduação em Ciências Veterinárias da Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia

Denis Douglas Pessoa, Universidade Federal de Uberlândia

Acadêmico do curso de graduação em Zootecnia da Faculdade de Medicina Veterinária da Universidade Federal de Uberlândia

Cláudio Ulhôa Magnabosco, Embrapa Cerrados

Pesquisador da Embrapa Cerrados e Professor do Programa de Pós Graduação em Ciência Animal da Escola de Veterinária e Zootecnia da Universidade Federal de Goiás

Raysildo Barbosa Lôbo, Associação Nacional de Criadores e Pesquisadores

Presidente da Associação Nacional de Criadores e Pesquisadores

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Published

2017-03-03

How to Cite

FARIA, C. U.; PEREIRA, C. de F.; DA SILVA, R. P.; PESSOA, D. D.; MAGNABOSCO, C. U.; LÔBO, R. B. EVALUATION OF THE GENETIC COMPONENT ON THE PHENOTYPIC EXPRESSION OF PRODUCTION TRAITS IN NELLORE CATTLE SUBMITTED TO PERFORMANCE TEST. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 18, 2017. DOI: 10.1590/cab18030528. Disponível em: https://revistas.ufg.br/vet/article/view/e-30528. Acesso em: 22 nov. 2024.

Issue

Vol. 18 (2017): Continuous publication

Section

ZOOTECNIA

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