在一些国家，无沙门氏杆菌鸡群的喂养越来越普遍。

Salmonella-free chicken herds are becoming more common in some countries.

youdao

在一些国家，无沙门氏杆菌鸡群的喂养越来越普遍。

Salmonella-free chicken herds are becoming more common in some countries.

youdao