Body condition recovery, carcass electrical stimulation and meat aging as improvement factors of loin traits in santa inês ewes culled by age

Authors

  • Luiz Eduardo dos Santos Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Zootecnia e Diversificada, Nova Odessa, SP
  • Téofilo José Pimentel da Silva Universidade Federal Fluminense, Faculdade de Veterinária, Niterói, RJ
  • Mônica Queiroz de Freitas Universidade Federal Fluminense, Faculdade de Veterinária, Niterói, RJ
  • Eduardo Antonio da Cunha Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Zootecnia e Diversificada, Nova Odessa, SP
  • Márcia Mayumi Harada Haguiwara Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Tecnologia de Alimentos, Campinas, SP

DOI:

https://doi.org/10.17523/bia.v70n1p38

Keywords:

color, cooking loss, sensory analysis, slaughter, tenderness

Abstract

Effects of body condition (BC) recovery, carcass electrical stimulation (ES) and meat aging time (AT) were studied on the carcass and loin in Santa Ines ewes culled by age and slaughtered immediately after pup weaning or after BC recovery period. Carcass characteristics, shear force (SF), cooking loss (CL), meat color (L*, a*, b*) and sensory characteristics of Longissimus muscle were evaluated. It was concluded that BC recovery improved carcass characteristics and meat color brightness, however did not affect the tenderness. The ES and AT improved tenderness, reducing SF in 44 - 45% and in 51 - 59%, respectively, for 7 or 14 days of aging and 32 - 33% in non aged meat. ES affected the color parameters, clearing the meat. AT darkened and accentuated the brownish red color of meat and increased the cooking losses, from 15.2% (non aged) to 19.6% and 23.1%, respectively, for 7 and 14 days of AT. The sensory evaluation for tenderness corroborated the findings of the instrumental evaluation, which confirmed the effectiveness of ES in improving meat tenderness.

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Published

2013-01-11

Issue

Section

ANIMAL QUALITY PRODUCTS

How to Cite

Body condition recovery, carcass electrical stimulation and meat aging as improvement factors of loin traits in santa inês ewes culled by age. (2013). Bulletin of Animal Husbandry, 70(1), 38-45. https://doi.org/10.17523/bia.v70n1p38

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