Among the genetic and matermal effect trend of the slaughter traits in pekin duck,the genetic effect trend of leg meat weight and abdomen fat percent were ascended,but not clear.
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释义
北京鸭屠宰性能的育种值和母本效应的变化趋势中,腿肉重和腹脂重有小幅度的波动并逐渐上升;
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