Musculosidade e composição da perna de ovinos de diferentes genótipos e idades ao abate

Translated title of the contribution: Muscularity and leg composition in lambs of different genotypes and ages at slaughter

Américo Garcia Da Silva Sobrinho, Roger Walter Purchas, Isam Tawfik Kadim, Sandra Mari Yamamoto

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Carcass morphologic characteristics, muscularity and leg tissue composition of pasture fed lambs (Limestone Downs farm, New Zealand) born to Romney ewes and sired by Romney, East Friesian x (Finn x Texel), and Finn x Poll Dorset were evaluated for carcass composition and meat quality. Animals were slaughtered in two age groups (150 and 300 days), each group containing 15 animals of each sire breed, comprising a total of 90 animals. The East Friesian x (Finn x Texel) sired group presented the highest weight-adjusted percentage of leg muscle (1,975 g), and relatively to the Romney group, it had similar leg muscularity (0.45), but higher muscle to bone ratio (7×6.69). Finn x Poll Dorset sired group presented less leg muscularity (0.44) than the other genotypes. Lambs slaughtered at the older age had longer and leaner carcasses at the same weight, probably because of summer-autumn adverse conditions, typically with slower pasture growth rates and herbage quality. Both genotype and slaughter age influence carcass morphologic characteristics, muscularity and leg tissue composition of lambs.

Original languageUndefined/Unknown
Pages (from-to)1129-1134
Number of pages6
JournalPesquisa Agropecuaria Brasileira
Volume40
Issue number11
Publication statusPublished - Nov 2005

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Keywords

  • Carcass
  • Lamb
  • Morphology

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Da Silva Sobrinho, A. G., Purchas, R. W., Kadim, I. T., & Yamamoto, S. M. (2005). Musculosidade e composição da perna de ovinos de diferentes genótipos e idades ao abate. Pesquisa Agropecuaria Brasileira, 40(11), 1129-1134.