Guide talk:Breeding Pigs/@comment-4175522-20110720173342/@comment-4175522-20110808035159

The Farm is now only allowing to place 150 breed rams, ewes, boars or sows on the english farm, though you can keep more in storage. If more are kept in storage this seems to still allow you to breed more, but if they are on the farm the sheep pen doesn't allow the breeding, not sure whether it is a glitch though.