dìng / xiàng / péi / yù / yǒu / zhù / yú / tí / gāo / jiā / chù / de / chǎn / liàng / hé / kàng / bìng / néng / lì

定向培育有助于提高家畜的产量和抗病能力。

Directed breeding can help improve livestock productivity and disease resistance.