Sire carcass breeding values affect body composition in lambs — 1. Effects on lean weight and its distribution within the carcass as measured by computed tomography

F. Anderson; A. Williams; L. Pannier; D.W. Pethick; G.E. Gardner

doi:10.1016/j.meatsci.2015.06.002

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Sire carcass breeding values affect body composition in lambs — 1. Effects on lean weight and its distribution within the carcass as measured by computed tomography

Journal article

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Peer reviewed

Sire carcass breeding values affect body composition in lambs — 1. Effects on lean weight and its distribution within the carcass as measured by computed tomography

F. Anderson, A. Williams, L. Pannier, D.W. Pethick and G.E. Gardner

Meat Science, Vol.108, pp.145-154

2015

DOI: https://doi.org/10.1016/j.meatsci.2015.06.002

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Abstract

Data are obtained from computed tomography scanning of 1665 lambs at locations around Australia. Lambs were progeny of Terminal, Maternal and Merino sires with known Australian Sheep Breeding Values for post weaning c-site eye muscle depth (mm; PEMD) and fat depth (mm; PFAT), and post weaning weight (kg; PWWT). Across the 7.8 unit range of sire PEMD, carcass lean weight increased by 7.7%. This lean was distributed to the saddle section (mid-section) where lean became 3.8% heavier, with fore section lean becoming 3.5% lighter. Reducing sire PFAT across its 5.1 unit range increased carcass lean weight by 9.5%, and distributed lean to the saddle section which was 3.7% heavier. Increasing sire PWWT increased lean at some sites in some years, and on average increased saddle lean by 4% across the 24.7 unit PWWT range. Changes in lean weight and distribution due to selection for carcass breeding values will increase carcass value, particularly through increased weight of high value loin cuts.

Details

Title: Sire carcass breeding values affect body composition in lambs — 1. Effects on lean weight and its distribution within the carcass as measured by computed tomography
Authors/Creators: F. Anderson (Author/Creator) - University of New England
A. Williams (Author/Creator) - Murdoch University
L. Pannier (Author/Creator) - Murdoch University
D.W. Pethick (Author/Creator) - Murdoch University
G.E. Gardner (Author/Creator) - Murdoch University
Publication Details: Meat Science, Vol.108, pp.145-154
Publisher: Elsevier BV
Identifiers: 991005540942307891
Murdoch Affiliation: School of Veterinary and Life Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.51 Dairy & Animal Sciences; 3.51.206 Meat Quality
Web Of Science research areas: Food Science & Technology
ESI research areas: Agricultural Sciences