Genetic improvement by crossing was a main practice for more than 20 years in beef cattle production in China.
杂交改良是20余年来我国肉牛生产的主要实践。杂交是育种的方法之一。但它同正规的育种工作是有界限的。
Genetic improvement by crossing was a main practice for more than 20 years in beef cattle production in China.
杂交改良是20余年来我国肉牛生产的主要实践。杂交是育种的方法之一。但它同正规的育种工作是有界限的。
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