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Genetic correlation estimates for lamb carcass composition

S I Mortimer, Andrew Swan, Alexander Ball, David L Hopkins, R H Jacob, R D Warner, K L Pearce, David W Pethick, Julius H Van Der Werf, J E Hocking Edwards, Geert Geesink, Graham E Gardner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Genetic correlations were estimated among lamb carcass composition traits recorded on progeny of the Information Nucleus program of the CRC for Sheep Industry Innovation. Genetic correlations among carcass muscle dimensions (depth, width and area) and muscle weights (loin, topside and round) were positive and generally moderate to strong, as were genetic correlations among carcass fat traits (at the 5th rib, GR and C sites and weight of trimmed loin fat). The eye muscle dimensions had weak genetic correlations with the fat traits and bone weight, whereas the fat traits had favourable moderate to strong genetic correlations with topside and round weights, plus hind leg bone weight. Use of index selection in a simple terminal sire breeding program based on live animal traits is expected to yield improvements in most carcass composition traits.
Original languageEnglish
Title of host publicationProceedings of the Association for the Advancement of Animal Breeding and Genetics
EditorsWilliam Pattie
Place of PublicationArmidale, Australia
PublisherAssociation for the Advancement of Animal Breeding and Genetics (AAABG)
Pages227-230
Volume19
ISBN (Print)9780646559155
Publication statusPublished - 2011
EventAAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics - Perth, Australia
Duration: 19 Jul 201121 Jul 2011

Conference

ConferenceAAABG 2011: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics
CityPerth, Australia
Period19/07/1121/07/11

Keywords

  • Animal Breeding

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