when my dog is neutered how will his behaviour be affected?

i have a 19 month old jack russell who has recently started humping the head of my labrador a little to often. he is in for his op tmoz. will having him neutered stop him doing this or just make it less often? he is also very active which we have no problem with as we love playing with him, will this affect his hyperactivity?

Depressed!

no it shouldnt affect his activity - unless you allow it to - it will or should stop him from humping -

My lab calmed down, stayed home more, and gained weight. He has always been good natured.

It should not affect his hyperactivity at all. It will only affect his reactions sexually.

He's going to go nuts!!

he will probaly be depressed a little bit

he may not change or he may just become quiter

It will a little, but not much.It will stop the humping (mostly except my Lab still humps the BIL's dog when she is in season)It does not change their personality at all!!!

most dogs mellow out after they have been fixed, he might be a little moody at first tho, because he will be sore.

my vet told me that once they get a little bit older- 6 months to a year, the humping cannot be fixed with neutering. They behavior has become normal to them. Best thing you can do is distract him with a toy or something.actually where i work there is a 6 month old male that was neutered within the last 2 weeks and he still tries to hump other dogs.

He'll calm down and be less aggressive overall. Hyperactivity normally decreases once the testosterone levels decrease. Think about if you didn't think about sex at all anymore... that's basically comparable. It won't really affect his personality beyond that.

he wil be lazy

well some animals will get more mellow... calm down a little bit..

well, for one: he'll fucking hate you. he'll also give up on life and stop humping stuff, banging hot doggies, and trying to take over new territory. you're a douche bag. we should cut your balls off.

Not really, it will make him a little more calm and laid back. But he is hyper cause he's a jack russell so don't worry about it.

If I was him the first thing I would do is BITE you.

Our dog used to hump the cat, but after we got him fixed he stopped. If he does mount and animal he isn't doing it for reproductive reasons. He is trying to establish the role of top dog or alpha male. So it will probably lessen or stop unless your dog is one who is territorial (doesn't have to be in a mean way. Like I said my dog tries to mount other dogs that he encounters). My dog had quite a bit of energy before hand. He still has plenty of energy, but as much as he did before he got fixed. He sleeps a lot more and I play with him a lot, but he is easily worn out.

if he hasn't been fixed yet he may keep up the behavior depending on when he started humping

His bark will sound like Bowsie Wowsie.