He said it can be linked to decreased piglet sizes at birth, but also has been influenced by the withdrawal of antibiotics as growth promoters and changes in the piglets' diet.
他说：它可以链接到出生，下跌仔猪大小，但也受到了撤出的抗生素生长促进剂和仔猪的饮食习惯的改变。
He said it can be linked to decreased piglet sizes at birth, but also has been influenced by the withdrawal of antibiotics as growth promoters and changes in the piglets' diet.
他说：它可以链接到出生，下跌仔猪大小，但也受到了撤出的抗生素生长促进剂和仔猪的饮食习惯的改变。
应用推荐