I had them in a hutch(cage) and I took the doe to the buck,I know how they can get aggressive and territorialI agree with insanity. I tried to breed my New Zealand doe when she was about two and she didn't take. Just out of curiosity, did you have the two in a pen or in one of the rabbits' cages? Putting the buck in the doe's cage for breeding can cause aggresive behaviors from the doe.