The pig is a litter-bearing animal and a typical female will give birth to 10 or more piglets.It is common for sows to give birth to two litters of pigs each year.

• 猪是一种多产胎动物，一头好的母猪能产10头甚至更多的小猪，一般来说一头母猪一年能产两窝小猪。