When you breed animal's behavior vary greatly I have males that eat year round even during breeding season and some that will stop eating half way through breeding season and resume in the spring.

As far as female I have some that will stop eating soon as I start pairing them others will eat until the day they ovulate.

Different animals different behavior, the most important is that you stay on the top of things, make sure your animals are well hydrated and monitor them, and of course if an animal start losing too much weight (which can happen during breeding season) know when to pull the animal out of rotation if necessary.