GENETIC PARAMETER AND TREND FOR PRODUCTIVE TRAITS OF NELLORE CATTLE

Authors

  • Julio César de Souza Universidade Federal de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, julio.souza@ufms.br http://orcid.org/0000-0001-7296-988X
  • Fabrício José Parisi da Fonseca Universidade Estadual de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, fa.jpfonseca@hotmail.com
  • Luiz Otávio Campos da Silva Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA),Centro Nacional em Pesquisa de Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasi, Luizotavio.silva@embrapa.br
  • Rosana Moreira da Silva de Arruda Universidade Federal de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, rosana.msilva@uol.com.br
  • Andrea Gondo Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA),Centro Nacional em Pesquisa de Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasi, andrea.gondo@embrapa.br
  • José Antonio de Freitas Universidade Federal do Paraná, Palotina, Paraná, Brasil, freitasjaf@ufpr.br http://orcid.org/0000-0001-7149-2848

DOI:

https://doi.org/10.1590/cab19025316

Keywords:

Animal Behavior

Abstract

The Midwest region has excelled as a beef producer and producing efficiently has been the goal of livestock farmers. This study aimed to estimate the genetic parameters and trends for weights at 240(W240) and 420(W420) days of age in Nellore cattle, reared in Goias state, Brazil. A total of 48,580 data for W240 and 28,685 for W420 were used. Genetic parameters were obtained by univariate analysis. The model included the fixed effects of contemporary group (birth season-dry and wet-, year of birth, sex and farm) and covariate age of cow. Direct and maternal effects were used as random effect for W240 and the direct effect for W420. The genetic trends were obtained by regression analysis of the genetic value of the animal on the year of birth. The results of direct heritability were 0.15 ± 0.02 for W240 and 0.24 ± 0.00 for W420. The annual genetic gain was 0.311 kg for W240 and 0.511 kg for 420 days of age (W420). The results indicate the possibility of obtaining higher genetic gains through selection; however, the selection is being more efficient at W420.
Keywords: genetic gain; heritability; weight.

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Author Biographies

Julio César de Souza, Universidade Federal de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, julio.souza@ufms.br

http://lattes.cnpq.br/7184145116208107

Fabrício José Parisi da Fonseca, Universidade Estadual de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, fa.jpfonseca@hotmail.com

http://lattes.cnpq.br/6420274711213284

Luiz Otávio Campos da Silva, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA),Centro Nacional em Pesquisa de Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasi, Luizotavio.silva@embrapa.br

http://lattes.cnpq.br/9601424074985883

Rosana Moreira da Silva de Arruda, Universidade Federal de Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brasil, rosana.msilva@uol.com.br

http://lattes.cnpq.br/3362328775097901

Andrea Gondo, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA),Centro Nacional em Pesquisa de Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasi, andrea.gondo@embrapa.br

http://lattes.cnpq.br/5454083850483140

José Antonio de Freitas, Universidade Federal do Paraná, Palotina, Paraná, Brasil, freitasjaf@ufpr.br

 http://lattes.cnpq.br/9199772210973448

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Published

2018-07-04

How to Cite

CÉSAR DE SOUZA, J.; JOSÉ PARISI DA FONSECA, F.; CAMPOS DA SILVA, L. O.; MOREIRA DA SILVA DE ARRUDA, R.; GONDO, A.; ANTONIO DE FREITAS, J. GENETIC PARAMETER AND TREND FOR PRODUCTIVE TRAITS OF NELLORE CATTLE. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 19, p. 1–8, 2018. DOI: 10.1590/cab19025316. Disponível em: https://revistas.ufg.br/vet/article/view/e-25316. Acesso em: 21 nov. 2024.

Issue

Vol. 19 (2018): Continuous publication

Section

ZOOTECNIA

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