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Will neutering calm a hyper dog into an easy going mutt?

When Ann decided to get her first family dog, she chose carefully. Her son, Jack, suffers from mild asthma, so she wanted a non-shed dog. A Standard Poodle would have been too big for their home, and she didn't want a tiny Yorkshire Terrier.

A mid-sized, cross-bed dog like a Cockapoo seemed like the best answer. She's been happy with Toby as a pet apart from two issues: his coat and his behaviour.

In one way, Toby's coat is ideal: he never moults, which is helpful for her son's asthma. The down-side is that that his long hair needs to be professionally groomed every three months, with regular combing and brushing in between grooming sessions, to prevent matted fur.

The behavioural issues are more challenging: Toby has far too much excitable energy. Ann didn't get a chance to meet his parents, but she now realises that this would have been helpful to predict how he would turn out as an adult.

If she had met a father dog with as much energy as Toby, she might have decided not to take the pup. Ann brought him to me to ask if neutering would improve his behavioural problems.

The first issue is definitely something that castration will solve: Toby has started to piddle in the house, cocking his leg on the side of chairs, the table and the kitchen walls. This marking behaviour is driven by male hormones, so once Toby has been neutered, as his male hormones reduce, he's less likely to do it.

Toby's second issue may also be helped by castration: he has become aggressive to other dogs. Ann has learned to cross over to the other side of the street rather than risking a confrontation with a dog coming towards her.

Dog to dog aggression is partly driven by testosterone, so castration is likely to help. It won't solve the problem completely, and Ann will also need to find a way of letting Toby do more socialising with other dogs so that he is less excited when he sees them.

Toby's third and last behavioural problem will not be helped by castration: he's impossible to control when out on walks. He continually strains at the leash, and Ann can't let him off to run, because she doesn't think he'd come back when called.

She tried using a harness rather than the usual collar, but he just chewed through it. .


There's no easy or quick answer to a complicated problem like this: nothing will make Toby a calm, relaxed dog. However, there are some simple steps that may help him to become more biddable and well-behaved.

First, if he is taken for a half-hour walk, twice daily, as part of his routine, he will gradually become less madly energetic.

Second, Ann needs to talk to a professional, experienced dog trainer to get some reliable, simple tips on how to train him to behave.

It's worth trying again with a harness rather than a collar, but it's best to do this under the guidance of someone with experience of using one.

Toby will always be a high-energy dog, but once he has been trained to be better behaved, he will be calmer, and Ann will be much happier.

l Pups tend to grow up like their parents, so it's always worth meeting the mother and father of a new pup

l Castration helps to solve some behavioural problems

l Consistent and regular dog training is needed to solve other bad behaviours