Progeny groups sired by Duroc, Landrace, Large White and Duroc synthetic boars were concurrently recorded to estimate differences in carcass, meat and eating quality traits resulting from sire genotype group. Significant (P<0.05) differences between groups were observed for hot standard carcase weight, carcase P2 (CP2), intra-muscular fat percentage, belly traits, cooking loss and shear force. However, pH and colour (meat brightness) did not differ. Results for belly fat did not mirror those for CP2, since the leanest genotype based on CP2 did not have the leanest bellies. Variability of sire progeny groups within sire genotype group was significant, reducing the significance of differences between sire genotype groups when sire was accounted for. This suggests that sire breed selection alone is inadequate to reliably manage meat and eating quality characteristics of commercial slaughter progeny.

Kim L Bunter, C. Bennett

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 06.15, 2006
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