Hello I have two mini donkeys a Jack and Jenny, the Jack has started ripped her back apart biting her and making her raw. It is heartbreaking, I have the vet scheduled for a few days to geld him. I am wondering how long will it take for him to stop doing this? Will his personality change now that he is already harassing her? This is terrible it makes me sick to my stomach to watch him drop her to the ground. He is definitely not mating with her not that I have seen anyway. The vet does not seem to concerns about him getting her pregnant. Help please