HETEROTIC EFFECT ON NON-INTEGRANT PARTS OF CARCASS FROM STEERS FINISHED IN FEEDLOT

Authors

  • Jonatas Cattelam Universidade Federal de Santa Maria
  • Ivan Luiz Brondani Universidade Federal de Santa Maria
  • Dari Celestino Alves Filho Universidade Federal de Santa Maria
  • Flânia Mônego Argenta Universidade Federal de Santa Maria
  • Vicente Siqueira Junior Universidade Federal de Santa Maria
  • Patrícia Machado Martini Universidade Federal de Santa Maria

DOI:

https://doi.org/10.5216/cab.v15i2.28081

Keywords:

Beef cattle

Abstract

The objective of this study was to evaluate the  heterotic effect on non-integrant parts of carcass from steers of the breeds Charolais (Ch) and Nellore (Ne) and crossbreeds from fifth (21/32Ch 11/32Ne; 21/32Ne 11/32Ch) and sixth (43/64Ch 21/64Ne; 43/64Ne 21/64Ch) generation, finished in feedlot. The heterotic effect was positive for slaughter weight, empty body weight in both generations, head in fifth (1.29 kg) and sixth (1.04 kg) generation and ears in fifth generation (0.17 kg). There was a heterotic effect on fifth and sixth generation for rumen-reticule and intestines, respectively, and abomasum on fifth generation. In absolute weight, a heterotic effect was observed on fifth generation for heart, lungs, kidneys and spleen (0.14; 0.11; 0.55 and 0.16 kg, respectively) and lungs in sixth generation (0.61 kg). The heterotic effect was positive for fats of heart, kidney and digestive tract in both generations and for inguinal fat in sixth generation. In relation to empty body weight, there were heterotic effects for rawhide, in both generations, ears in fifth generation, and heart fat and blood in sixth generation. The crossbred steers showed higher weights for different external compounds in relation to purebred Charolais or Nellore.

KEYWORDS: crossbreeds, digestive tract, empty body weight, liver, rawhide.


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Published

2014-06-29

How to Cite

CATTELAM, J.; BRONDANI, I. L.; ALVES FILHO, D. C.; ARGENTA, F. M.; SIQUEIRA JUNIOR, V.; MARTINI, P. M. HETEROTIC EFFECT ON NON-INTEGRANT PARTS OF CARCASS FROM STEERS FINISHED IN FEEDLOT. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 15, n. 2, p. 174–186, 2014. DOI: 10.5216/cab.v15i2.28081. Disponível em: https://revistas.ufg.br/vet/article/view/28081. Acesso em: 18 may. 2024.

Issue

Vol. 15 No. 2 (2014)

Section

Animal Production

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