Will neutering and adult male Pyr stop aggression with my male border collie?

by Jane Kessler

Mac is our 5 yr old, intact male Pyr. An amazing dog, guaradian of our sheep,
terrific with people and smart enough to do our taxes. He and my 4 yr old intact BC have had 2 nasty fights recently. I am wondering if neutering Mac will reduce this. Mac is good with our female pyr and female English Shepherd. We remove Mac from pasture when there are visiting working dogs in with the ewes.
The reactivity seems to be mainly between our boys.
Would appreciate any insights on neutering / behaviour or otherwise.
Many thanks.

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Jul 05, 2016
Past time
by: Ed A from NJ

If your not a breeder, your boy should have been neutered 3 years ago. Any benefit in personality is too late. However, there still is health benefit to be had so neutering is still in his best interest.I can't help you with the male on male agression. As good as my boys have been GP male just have to be king of all they preside over.

Jul 06, 2016
Great Pyrs and Border Collies - hmmmmm
by: Anonymous

My Pyr Frankie (now 11 yrs old) started acting out with Border Collies in particular several years ago. She still is quite rude with new BCs we meet out in public, but at least she has stopped the nasty habit of "pushing down", "putting down", "forcing down" any Border Collie who starts off the introduction by lowering his head and staring Frankie down. For some reason, she found this "stance" threatening, or doggy rude or whatever. It still takes a lot of correction on my part to ensure things don't go down hill when we meet a new BC.

We worked hard with our neighbour's dog Kennedy and another local BC named Murphy, to help Frankie practise her BC social skills.

I guess one can't take the herder out of the collie any more than one can take the guardian out of the pyr. Neutering almost always helps with aggression. Wishing you best of luck to remedy this issue.

Jul 26, 2016
by: Anonymous

Oy! This is not good. It's going to end with the death of the BC, unfortunately.
Both males are in the business of establishing 'turf', and neither will ever tolerate the other, especially in the presence of females. Even if the females are spayed your intact males will still need to settle the matter in the only way they know.
Neutering them at this late date will not change anything much. You need to be more responsible. Neuter the males...permanently re-home one of them ...and spay your females.
And remember when re-homing, both dogs have learned to be reactive to another male, so be careful to not set someone else up for a disaster that you have created.

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