Breed differences and crossbreeding effects for liveweight traits in Australian meat sheep breeds

Author(s)
Khusro, Mohammad
Brown, Daniel
Van Der Werf, Julius Herman
Graser, Hans Ulrich
Publication Date
2005
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.
Citation
Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.16, p. 231-234
ISBN
064309234X
0643092331
ISSN
1328-3227
Link
Title
Breed differences and crossbreeding effects for liveweight traits in Australian meat sheep breeds
Type of document
Conference Publication
Entity Type
Publication

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