结果表明，猪增生性肠炎已成为华南地区集约化养猪场的一种高发病。

The results showed that porcine proliferative enteronitis has become a common disease in South China.

youdao

结果表明，猪增生性肠炎已成为华南地区集约化养猪场的一种高发病。

The results showed that porcine proliferative enteronitis has become a common disease in South China.

youdao