We pulled a huge calf the other day. Problem is he won't nurse consistently. We had to tube him after birth and tryed to teach him the next day, but fed with a bottle. He starts to latch on then puts so much pressure into the udder that it slips out of his mouth. He is not nursing when no one is around because his mommas udder is full. I heard somewhere that big calves can sometime be real stupid and stubborn. Anybody had an experience with this. He is a real nice calf but I'm growing a bit tired of sitting and holding his mouth on the udder. Should I just leave him alone till he gets hungry enough and he'll eventually figure it out?