Some farmers are injecting pregnant sows to cause abortions.

一些养殖户已经开始给怀孕母猪注射疫苗使其流产。

The charity Compassion in World Farming says most premium Parma ham is produced using metal crates that strictly confine pregnant sows.

世界农场动物福利协会表示，大多数优质的帕尔马火腿都是用被关在严格限制怀孕的金属板条箱的母猪生产的。