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Aggression Between my 2 Dogs

1.7K views 5 replies 6 participants last post by  cosmos  
#1 ·
I have two dogs. One is approximately 11 years old that we rescued 10 years ago. He is an altered, 55lb Rottweiler mix that was never socialized before we got him from a neglectful, but not abusive, owner. He has been hit-or-miss with other dogs, but he got along pretty well with his late litter mate for 9 years. They had one spat shortly after they were altered, but never again. With some dogs he is just a social misfit, while with others he becomes aggressive. He is good with people, and I have never been concerned with his behavior toward humans. He plays with our neighbor kids with absolutely no problems.

The second is an unaltered 80lb, F1B Goldendoodle that we got 10 months ago as a puppy. He is a highly intelligent, tender-hearted dog that has never had issues with dogs or people, outside of humping my daughter's friends' legs. He definitely prefers blondes... He has always submitted to the older dog, so I assume, at this point, he is at an age and size where he is deemed a threat by the older dog, but I am no expert.

To the point: they got along great for 10 months, and were inseparable, now in the past 3 days we have had 3 fights with a lot of blood, including mine when I foolishly attempted to break one fight up. Yes, I know, bad idea, but it was dark and I was not thinking. They did not bite me intentionally, but when I attempted to grab one collar, the other clipped me pretty nastily with a canine. Yes, I know, stupid, no lecture needed. Usually, the fight starts when the Rott stares the younger one down. It is difficult to identify at times, but I am to the point now where I know the warning sign. In every case, the older is the initiator, but the younger is willing to go at it. After the 2nd fight, I thought we were gaining ground, as the younger appeared to submit to the older all day, but in the evening, that all went to pot. Tonight, the Doodle had the Rott around the throat when they went at it, so I feel like he now knows he might have the upper hand with the older one, and I know my Rott will never back down. It is not in his nature.

I am considering professional help to determine if there is anything I can do with them. I do plan on having my Doodle altered in the next couple of weeks, if that is helpful. I was waiting, as I read in many places I should wait until 1 year to alter Doodles. I know that would not be a magic cure for this problem, but I am hoping it might help a bit. I am just trying to explore options before being forced to find a new home for the Doodle. I am afraid one will be seriously injured, or that I might have to put one down if things went too far.
 
#2 ·
Hello:
"To the point: they got along great for 10 months, and were inseparable, now in the past 3 days we have had 3 fights with a lot of blood, including mine when I foolishly attempted to break one fight up. "
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I'm certainly not an expert, but have owned multiple dogs for years. I have been lucky as most of them got along fine...with the older dogs usually objecting to new puppies; while teaching them to stay clear.

Have they both been checked recently by your vet; especially the older dog?
I ask because dogs can sense when another is very old/sick and sometimes try and drive them from the "pack".

I saw it first hand when adopting one of my dogs as a puppy. There were a lot of males, females, and puppies freely roaming a ranch. One of the dogs was obviously sick, and the others picked at it relentlessly. It was truly pathetic to see.
 
#3 ·
Another possibility is that the younger one is losing his puppy license and that's why the older dog is just not tolerating him.

Well done on noticing the stare intimidation. That's likely to be a trigger. But can you identify any other triggers, like toys, food, beds?

You may have to consider keeping them separate, in a crate and rotate type environment.
 
#4 ·
I agree with JoanneF that this is most likely related to a loss of "puppy license". What an adult dog will tolerate in a puppy very often changes (and can change very dramatically) when that puppy hits adolescence. Based on the size of these dogs, and the severity of the recent fights, I would strongly suggest immediately do a full separation and get in a professional trainer (one who uses modern, reward-based methods, NOT old school 'dominance' related methods or corrective 'tools') to see if there might be some way to help the situation. Honestly, though, based on the age of the older one along with the fact that he has never been all that dog social & friendly, I'm not really sure they are ever going to be able to live in full harmony (ie - free roaming together in the house unsupervised) And, yes, I'd get the older one in for a full senior work up at the vet (if one hasn't been done recently) At 11 years old a large dog is probably dealing with some level of arthritis or other issues that cause chronic pain, which (even on a low level basis) can cause behavioral changes, reactivity & just being less tolerant in general.
 
#5 ·
I am basically having the same exact issue as you only my older male dog is a 25 pound pug and my 14 month old male is a 80lb goldendoodle are your shoes are the same right to the T unfortunately five days ago my goldendoodle really hurt my pug. The vet was able to help him and we’re hoping he will be able to keep his vision in both his eyes. It’s that bad if anybody has any ideas for me they would be greatly appreciated…
 
#6 ·
Definitely keep both dogs completely separated for now.
Can you start a new thread and explain more about your dogs? Ages? Neutered/intact? How long you've had them? What triggers fights. How you break up fights. Daily life, are they left at home together that sort of thing. Also, what have you tried already?