Please use this identifier to cite or link to this item:
Title: Using Australian Sheep Breeding Values to increase lean meat yield percentage
Contributor(s): Gardner, Graham E (author); Williams, Anne  (author); Siddell, J (author); Ball, Alexander (author); Mortimer, S (author); Jacob, RH (author); Pearce, KL (author); Hocking-Edwards, JE (author); Rowe, James B  (author); Pethick, David W (author)
Publication Date: 2010
DOI: 10.1071/AN10144
Handle Link:
Abstract: This study describes the impact of Australian Sheep Breeding Values (ASBV) for post-weaning weight (PWWT), C-site fatness (PFAT) and eye muscle depth (PEMD) on lamb carcasses within the Australian Sheep Industry CRC Information Nucleus Flock. These results are taken from the 2007 drop progeny, consisting of ~2000 lambs slaughtered at a target weight of 21.5 kg. These lambs were the progeny of sires selected to ensure genetic diversity across various production traits. As expected, the PWWT ASBV increased weight at slaughter, and hot standard carcass weight. Dressing percentage was markedly improved by increasing PEMD ASBV, thus prime lamb producers will be maintaining an animal of similar weight on farm, but delivering a markedly larger carcass at slaughter. Lean meat yield % (LMY%) was highest in the progeny of sires with low PFAT ASBV, which decreased whole carcass fatness and increased muscularity. PWWT ASBV affected carcass composition but had little impact on LMY%, as the decreased fatness was largely offset by increased bone, with relatively little change in muscle content. Lastly, PEMD ASBV had little impact on whole carcass LMY%, but did appear to cause some level of muscle redistribution to the higher value loin cuts, in turn increasing the value of the carcass lean.
Publication Type: Journal Article
Source of Publication: Animal Production Science, 50(12), p. 1098-1106
Publisher: CSIRO Publishing
Place of Publication: Australia
ISSN: 1836-0939
Field of Research (FOR): 070204 Animal Nutrition
070202 Animal Growth and Development
070203 Animal Management
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Statistics to Oct 2018: Visitors: 336
Views: 559
Downloads: 0
Appears in Collections:Journal Article

Files in This Item:
3 files
File Description SizeFormat 
Show full item record


checked on Nov 30, 2018

Page view(s)

checked on Dec 29, 2018
Google Media

Google ScholarTM



Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.