A systematic procedure was presented to evaluate the breeding objective in an integrated three-way cross breeding system of egg-type chickens. Profit functions were developed under the production and economic condition of China and marginal returns of each traits calculated. Relative economic weights of traits in three pure fines were obtained under the basis of marginal return.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XVI. Poultry, fish and horse genetics and breeding, growth and reproduction, immune response and disease resistance., , 54–57, 1990
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