英语语法分析

Controlling piglets Huang pullorum disease is the key to improve the survival rate of piglets.

控制好仔猪黄白痢病，是提高仔猪成活率的关键。

For pullorum, typhoid fever, swine, and poultry paratyphoid bacterial enteritis, cholera and other diseases.

适用于鸡白痢、伤寒、猪细菌性肠炎以及禽类副伤寒、霍乱等疾病。

Pathorphological observation of naturally occurring and experimental pullorum disease of chicks was conducted.

对自发性和实验性雏鸡白痢病进行了病理形态学观察。