Jack,

I am pleased you are willing to have your bunny neutered. He will be much calmer but still very active and he should stop the marking and aggressive behavior. Remember thought you need a rabbit specialist vet. Too, it will still take 3-4 weeks after the operation for all of the hormones to leave the bunnies system so you may not see much of an improvement right away.

While I appreciate your concern about the animals I think you are doing them a big injustice by NOT having them neutered if you have no intention of breeding and showing them. There are thousands of homeless pets of all species which do not have a loving home, a warm place to sleep and enough to eat. They end up being hit by cars/trucks, eaten by other animals, sometimes tormented and/or tortured or killed by people who think stray animals are fair game for abuse. Then there are the factory farms and puppy mills where animals have no space to move around, their living area is never cleaned so they stand in their own feces, they don't get adequate food, water or heat in winter, or cool air in the heat of summer. Many puppy and cat mills are only interested in earning a dollar and not the welfare of the animals. The moms and babies get little or no veterinary care and the moms are constantly kept pregnant. The inbreeding at these places causes hyperactivity and unmanageability...many of those animals never adapt to living with humans. They get and give diseases to each other and in the case of a neglectful owner die a horrible death.

Then there are the health concerns, such as reproductive cancers, hyperactivity, and spraying urine to mark territories. Many homeowners will not put up with such activity in their homes.

By not neutering our pets we just add to the overpopulation of animals who have no one to care for them. I suggest you do some reading on pet overpopulation and the abused, abandoned and neglected animals and then see if you still feel that neutering is not good idea.