Will my puppy’s behaviour change once he reaches adolescence?

November 3rd, 2008

He is 5 months and is a lovely confident dog. He plays well with other dogs (quite submissive with them). He is OK to train, and recall is pretty perfect. Im going to get him neutered at about 6-7 months, but will his behaviour change when he is 6-18mths etc He is a shih tzu jack russell cross.
Small dogs mature more quickly than larger dogs - you can expect him to reach physical maturity at about 1.5 years (whereas a large breed is still growing up to 2 years). So, your dog is already starting adolescene. As you are neutering him in the next month or so you will nip most of the effects of testosterone in the bud and he won’t have the opportunity to develop too many bad habits. When a dog reaches adolescence they start to realise that they are bigger, more powerful and have an influence in their family/pack. Just like human adolescents, they test the boundaries and check whether you mean no or if they can get around you. If they can get around you then you end up with a nightmare dog. But, if you stick to your rules and the training you have already established with your pup, you will get him through this period easily. He will also have higher energy levels until he reaches maturity and should be fed on puppy food until hes about 10 months to 1 year depending on the recommendations of your vet and the food manufacturer. From your description you have done things right while hes a baby and you won’t have much trouble!

18 Responses to “Will my puppy’s behaviour change once he reaches adolescence?”

Issa H

It's a joke right?
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shubn_nandy

There will be some behavioural changes once u get him neutered , some breeds the dof tends to get over weight .You shouldnt face major problems
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punkbun03

he will become more calm and much easier to train than he already is. since he is half jack russell, i would think he will still have plenty of energy. good luck and happy holidays
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witters

Yes -

I think you are right to ask this question. Some dogs do change from submissive dogs that love to play with all dogs to being dog aggressive. This is because of a dogs natural pack order instinct. This also comes from a dog wanting to protect it's owner even when there is no danger.
Your dog may remain playfull and friendly, it may not.
You can only guarantee good dog behaviour by socialising them well from puppy into adulthood
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homeandawayrules

He'll probably start humping your leg, or anything else that moves.
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Evil Emo

yes, if he is mean DONT nutter him, let him be a dad, then neuterehim
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toniann m

yes he is young.he will calm down.but jack Russel's are hiper dogs and need things to keep them busy.
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midnight211

I don't think you will see a big change in his behaviour between 6 and 7 months. Getting him neutered is a good idea. We didn't get our collie neutered and he got out of our yard and got with the Rotti next door and made 12 puppies. Ever since then he had a really bad attitude like, "I'm the man…don't got to listen to you stupid people." He got a real attitude problem after he made puppies. He ended up breaking out of our yard and we haven't seen him since.
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Jenni

It sounds like he'll be a great dog. I have 2 Sheltie puppies that are 5 and 7 months. It is amazing how mature my 7 month is getting. She still has the same loving personality! I'm sure that your puppy won't change that much. Just make sure that he gets they same amount of attention you gave him when he was younger. It'll help that you're getting him neutrered. He won't become as territorial as a non-neutered dog. Have you taken dog obedience or agility with him? Jack Russels are great at agility. It gives them alot of confidence and keeps their brains and bodies in great shape! It is also an excellent way for you guys to bond even more! The biggest change that I've noticed witih puppies around 6 months old is how much more protective they are. They are much more apt to bark at any little noise. Barking can become a problem. My older Sheltie puppy has also started to jump on people more which we're working on. She just seems alot bolder. However, like I said, she is still very sweet and smart and I lover her so much!
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casey s

Puppies go through different stages until they reach puberty, like human kids. My dogs went through a skittish phase around 9 and 10 months where the protection instinct started coming in but they were unsure what to do with it. Getting him fixed will probably prevent him from getting some normal male behavior like humping and such but as long as you are consistent with his training he will become a well adjusted confident adult. A puppy goes through changes but will not become a totally different dog when he is grown. With my dogs once they got through a couple phases they ended up the exact same personality as I started with. I think he will be a great grown up.
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KarlosCharlos

yeah, a little bit.
he will start watching pornographic materials without any fear of being given mice ears as a punishment.
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madaboutdogs

yes normally behaviour does change,some dogs change alot some dogs dont.my 11month old pup at 5months was exactly the same at 5months he was perfectly recalled etc…that all changed when he reached 10months i now have series problems re calling him.Neutering will help him calm down a bit but as long as you reinforce his training he should be ok,my other dog a jr x didn't change atall during adolecence.Good luck
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mgpaddons

Dogs grow up just like people. The older the dog the more calm and knowing they are. As far as once you get the dog neutered, he should become less aggressive and not have those typical male tendencies. Also expect a little weight gain from him and he will fill out once you get him neutered.
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vickymac82@btinternet.com

i have 3 dogs 1 of which is a puppy your dogs behaviour will change once hes had his bits off. i have 2 german sheps the male has calmed right down since doing it and they are both now very well behaved.
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bravodog

dogs in general become less active, don't chew on ever-thing in sight and stop digging holes after three years of destroying all your favorite plants and shoes. lol
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jamjan100

Funny but my sweet natured little Bi tch became quite snappy after she had been neutered…….We didn't let her have the first Heat. Perhaps one should?
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PetLover

Small dogs mature more quickly than larger dogs - you can expect him to reach physical maturity at about 1.5 years (whereas a large breed is still growing up to 2 years).
So, your dog is already starting adolescene. As you are neutering him in the next month or so you will nip most of the effects of testosterone in the bud and he won't have the opportunity to develop too many bad habits.
When a dog reaches adolescence they start to realise that they are bigger, more powerful and have an influence in their family/pack. Just like human adolescents, they test the boundaries and check whether you mean no or if they can get around you. If they can get around you then you end up with a nightmare dog. But, if you stick to your rules and the training you have already established with your pup, you will get him through this period easily.
He will also have higher energy levels until he reaches maturity and should be fed on puppy food until hes about 10 months to 1 year depending on the recommendations of your vet and the food manufacturer.
From your description you have done things right while hes a baby and you won't have much trouble!
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sarah c

Its a good question!
Since your dog is well trained, the biggest difference you'll notice at 18 months or so is that he may become slightly more independant and mature in his attitude when around other dogs.
If he's basically well behaved around people that won't change.
Neutering will keep him slightly submissive around other dogs. He'll be less likely to get into certain kinds of fight. Females and entire males will object to him less, because neutering alters their scent. No scrapping over females is a good thing!
I think you and your dog will benefit from your efforts to train him, and the neutering.
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