为了提高肉羊生产经济效益，提高波尔羊繁殖效率具有重要意义。

Improvement of reproductive efficiency takes important role in increase of economic benefit of goat production.

youdao

为了提高肉羊生产经济效益，提高波尔羊繁殖效率具有重要意义。

Improvement of reproductive efficiency takes important role in increase of economic benefit of goat production.

youdao