Immunocastration improves carcass traits and beef color attributes in Nellore and Nellore×Aberdeen Angus crossbred animals finished in feedlot

Giulianna Z. Miguel, Marcelo H. Faria, Roberto O. Roça, Carolina T. Santos, Surendranath P. Suman, Ana B.G. Faitarone, Nara L.C. Delbem, Lucio V.C. Girao, Juliana M. Homem, Erika K. Barbosa, Leticia S. Su, Flavio D. Resende, Gustavo R. Siqueira, Aline D. Moreira, Taciana V. Savian

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

The objective was to examine the effects of immunocastration on carcass traits and meat quality of Nellore and Nellore. ×. Aberdeen Angus male animals finished in feedlot. Surgically castrated, immunocastrated, and intact animals were finished in feedlot for 90. days. The animals were harvested, and carcass traits were evaluated. Carcasses were chilled, and one 2.5-cm steak was fabricated from Longissimus thoracis muscle. The steaks were individually vacuum packaged and frozen at 18 °C. Frozen steaks were thawed, and pH, instrumental color, cooking loss, and shear force were determined. Immunocastrated animals demonstrated greater (P< 0.05) hot dressing percentage and cold dressing percentage than their surgically castrated counterparts. Furthermore, steaks from immunocastrated and surgically castrated animals exhibited greater redness (P< 0.05) and lower darkness (P< 0.05) than steaks from intact animals, indicating possible advantage in retailing. The results suggested that immunocastration may be utilized to improve carcass traits and beef color in feedlot-finished Nellore and Nellore. ×. Aberdeen Angus males.

Original languageEnglish
Pages (from-to)884-891
Number of pages8
JournalMeat Science
Volume96
Issue number2
DOIs
StatePublished - Feb 2014

Bibliographical note

Funding Information:
This work was supported by funds from the FAPESP — Sao Paulo Research Foundation, Brazil . The authors thank Minerva Foods, Barretos, Sao Paulo, Brazil for providing access to slaughter facilities.

Keywords

  • Bos indicus
  • Carcass trait
  • Feedlot
  • Immunocastration
  • Meat color
  • Nellore

ASJC Scopus subject areas

  • Food Science

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