gelding will help to alot, but by the age of 8 alot of times a donkey has his "set in the brain" ways, but it all is going to depend upon the individual jack. I had a 3 yr old jack who never used for breeding, or in with jennys or mares..gelded him, and he was perfect. Then there was Snickers..one of my mini hinnys, he was raised being with the mares. Well, that boy...could just go on and on all day long, he would follow (not chase..but follow politely) any mare who came into heat. But once he started to mount the girls..he got gelded, age of 4. He dont mount them anymore, but still will walk along side of them or behind them when they are in heat. He always was a gentle fellow and still is very good with any of the girls. I wouldnt trade him for the world! Then I had another one I bought at the age of 5 and gelded at the age of 6...he was HORRIBLE, before and after..I kept him for almost 1 year thinking he would calm down and he never did. He was always VERY aggressive to any jennys around, even when they were not in heat, gelding didnt help calm him down much at all, other then he couldnt actually do "the act" but he sure did try. I found him a home with another lone gelded donkey and the two are now lliving happy-ever-after together, and get along great, and its been about 5 years! Its really hard to say exactly how this jack would act, but gelding him sure will help to calm his tendencies down, and most of the times they do turn out for the best.
