Older Dog attacking

[highflyer]

We have a female WCS who is 9 years old now who has always lived with two other WCS one boy the other a girl unfortunately we lost the other two last year so decided to get a pup we rescued a 7 month old from a breeder we have had her 10 months now with no issues but suddenly the older girl has started to be really aggressive towards the younger girl and followers her around looking for trouble we now have to separate them, instead of being a family in the evening we have to put one of the dogs in another room, what can we do ?
When we go for walks on the lead the older dog tries to attack the younger dog on lead but when off lead they seem to be ok, can't carry on like this any suggestions please

[bexVN]

I am being thick but can't figure what WCS is for!

Are they neutered?

[moorx]

Working Cocker Spaniel?

Have you had the older one vet checked? Some medical conditions can cause changes in behaviour (eg thyroid).

Edited by moorx on Monday 20th July 21:39

[Jasandjules]

Are they both intact?

[bexVN]

moorx said:

Working Cocker Spaniel?

Have you had the older one vet checked? Some medical conditions can cause changes in behaviour (eg thyroid).

Edited by moorx on Monday 20th July 21:39

Yes definitely should be checked esp if they're neutered. I was seeing if that could be ruled out as a poss reason first. Cockers do seem a bit prone to thyroid issues.

[Jasandjules]

Also google cocker rage....

[bexVN]

Jasandjules said:

Also google cocker rage....

Rarely see this these days, usually becomes evident in much younger dogs. Whilst I couldn't say it isn't possible I do think it is really unlikely. I don't think I have ever seen it in a working cocker tbh, always seemed to be golden cocker spaniels.

[highflyer]

Thanks for the reply's
Sorry for the abbreviation yes WCS Working Cocker Spaniel
All 3 are female and all intact
The baby in the group who is 4 months old tries to get in between the other two to stop them fighting she doesn't understand
Amber the 9 year old who kicks it all off is due her booster this week so will enquire about the thyroid thing
Thanks again

[bexVN]

I would be more inclined to investigate the fact that she is 9yrs old and still entire. She is at the right for hormone changes relating to this and could be a significant reason as to why she is behaving this way. Thyroid can be checked aswell and would be well worth knowing but my first question was to see if they were neutered was because I suspected you were going to say no.

I would definitely be discussing this at the booster and hope issue is relatively easy to solve.

ETA- I didn't twig from the first post that you actually had a very young female pup as well. How long have you had this pup? did the 9yr olds behaviour change to the middle one before or after the youngest pups arrival?

Edited by bexVN on Tuesday 21st July 14:34

[Morningside]

bexVN said:

Jasandjules said:

Also google cocker rage....

Rarely see this these days, usually becomes evident in much younger dogs. Whilst I couldn't say it isn't possible I do think it is really unlikely. I don't think I have ever seen it in a working cocker tbh, always seemed to be golden cocker spaniels.

My brothers dog had that. Was eating his tea and just utterly lost it

[bexVN]

It's horrible when you see it, they are still assessing whether it is some form of genetically linked epilepsy (which makes sense) It is still a rare occurrence luckily and can be misdiagnosed but a true case is veey unsettling to witness.