It's my first year breeding meat rabbits. I have 2 American Blue does, and 1 male American Chinchilla. Bunny #1 had only 3 kits in her first litter, Bunny #2 had 4 kits. Is this normal? I am kind of disappointed I was hoping for 6-8 kits. I just rebred bunny #1 today so Im hoping for a better...