Newly-derived genetic parameters for lamb carcase traits were used to construct selection indexes for the genetic improvement of lean meat production in lambs. Selection criterion traits measured at equal weight were predicted to give faster genetic progress in improved carcase composition than those measured at equal age. Selection criteria involving muscle area increased gains in lean content of carcases, compared with using muscle depth.

G.E. Pollott

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 18. Genetics and Breeding of Sheep and Goats; Breeding objectives and Breeding strategies; Genetic Parameters, Breeding Values, , 19–22, 1994
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