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Title: Breed differences and crossbreeding effects for liveweight traits in Australian meat sheep breeds
Contributor(s): Khusro, Mohammad (author); Brown, Daniel (author); Van Der Werf, Julius Herman (author)orcid ; Graser, Hans Ulrich (author)
Publication Date: 2005
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Abstract: Field data on 13 meat sheep breeds and their various crosses were analysed to examine breed differences and estimate crossbreeding effects for birth weight (Bwt), weaning weight (Wwt) and post-weaning weight (Pwt). Highly significant (P<0.001) breed additive effects were evident for Coopworth for Wwt (-3.18 Kg) and Pwt (-6.57 Kg). Significant additive effects on Bwt (0.18 Kg; P<0.01) and Wwt (0.85 Kg; P<0.001) were found for Suffolk. None of the breed combinations exhibited significant maternal heterosis. In general, direct heterosis for Bwt, Wwt and Pwt ranged from 0.2 to 1.0 Kg (4.8 to 22%), 1.0 to 1.9 Kg (3 to 5.50%), 0.2 to 2.9 Kg (0.5 to 6%), respectively.
Publication Type: Conference Publication
Conference Name: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics, Noosa Lakes, Queensland, Australia, 25th September - 28th September, 2005
Source of Publication: Application of new genetic technologies to animal breeding: Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 231-234
Publisher: CSIRO Publishing
Place of Publication: Collingwood, Australia
ISSN: 1328-3227
Field of Research (FOR): 070201 Animal Breeding
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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School of Environmental and Rural Science

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