STUDY OF GROWTH AND CARCASS TRAITS MEASURED BY ULTRASOUND IN TWO GENETIC GROUPS OF HEIFERS

Authors

  • Marcos Jun Iti Yokoo Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • Alex Arcelin Ortelan Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • José Lindenberg Rocha Sarmento Universidade Federal do Piauí
  • Lucia Galvão Albuquerque Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • Kleber Tomás Resende Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • Ricardo Andrade Reis Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • Isabelle Auxiliadora Molina de Almeida Teixeira Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)
  • Guilherme J. M. Rosa University of Wisconsin, Madison

DOI:

https://doi.org/10.5216/cab.v9i4.1297

Keywords:

Área de olho de lombo, espessura de gordura, características morfológicas, cruzamentos, medidas corporais

Abstract

The aim of this work was to study the effect of genetic group on body weight (BW), hip height (HH), chest girth (CG), longissimus muscle area (LMA), backfat thickness (BF), rump fat thickness (RF), and muscle index (MI=100×LMA/BW), and the relationship between them by using correlation and regression analyses. The records were obtained on 120 heifers at 14 months of age, from two genetic groups: 60 animals Braunvieh × (Santa Gertrudes × Nelore) and 60 animals Santa Gertrudes × Nelore. The genetic group significantly affected BW, CG and LMA. The estimates of phenotypic correlation between BW and HH, and between BW and CG were 0.49 and 0.79, respectively. The correlation between carcass traits and BW, CG and HH were of moderate to low magnitude, and between LMA and subcutaneous fat deposition were close to zero. All correlation estimates between MI and the others traits were negative and close to zero, except the correlation between MI and LMA, which was positive and high, as expected. Thus, the results of this study indicate that the genetic group with the greatest proportion of a continental breed genes showed higher LMA, BW and CG than the genetic group containing only genes of British and Zebu breeds. Furthermore, the growth traits are not good quantitative indicators of LMA and/or subcutaneous fat thickness, at least in phenotypic terms.

KEY WORDS: Body measurements, crossbreed, longissimus muscle area, morphologic traits, subcutaneous fat thickness.

Downloads

Download data is not yet available.

Author Biographies

Marcos Jun Iti Yokoo, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia da FCAV/UNESP e Department of Dairy Science da University of Wisconsin, Madison. Área: Genética e Melhoramento Animal. Bolsista da Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) e da Coordenação de Aperfeiçoamento Pessoal de Nível Superior (CAPES)

Alex Arcelin Ortelan, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia Área: Genética e Melhoramento Animal. Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brasil).

José Lindenberg Rocha Sarmento, Universidade Federal do Piauí

Campus de Bom Jesus. Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brasil).

Lucia Galvão Albuquerque, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia Área: Genética e Melhoramento Animal. Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brasil).

Kleber Tomás Resende, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia Área: Produção Animal. Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brasil).

Ricardo Andrade Reis, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia Área: Produção Animal. Bolsista do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq-Brasil).

Isabelle Auxiliadora Molina de Almeida Teixeira, Universidade Estadual Paulista, Jaboticabal, SP (UNESP-FCAV)

Departamento de Zootecnia Área: Produção Animal. Bolsista da Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Guilherme J. M. Rosa, University of Wisconsin, Madison

Department of Dairy Science. Área: Genetic and Animal Breeding

Downloads

Published

2008-12-21

How to Cite

YOKOO, M. J. I.; ORTELAN, A. A.; SARMENTO, J. L. R.; ALBUQUERQUE, L. G.; RESENDE, K. T.; REIS, R. A.; TEIXEIRA, I. A. M. de A.; ROSA, G. J. M. STUDY OF GROWTH AND CARCASS TRAITS MEASURED BY ULTRASOUND IN TWO GENETIC GROUPS OF HEIFERS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 4, p. 948–957, 2008. DOI: 10.5216/cab.v9i4.1297. Disponível em: https://revistas.ufg.br/vet/article/view/1297. Acesso em: 30 jun. 2024.

Issue

Vol. 9 No. 4 (2008)

Section

Animal Production

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).