I had a litter where the smallest was 2.4 ounces and the biggest was 5.1 and the little girl was just as tough as the big one, no problems at all.
She would latch right on and get in and fight for a spot, and there were four puppies. I watched her extra close, but I wouldn't say that just because they are small they will have trouble. This was out of a 5.5 pound female and 5 pound male.
Whitney |