We adopted out border collie pup (now 9 months old) at 6 months of age.
She came to us as most collie rescues do, highly strung,, in need of direction and needing a leader.
She's done brilliantly and is a great little dog most of the time.
When she came to us I noticed that she had some serious food aggression towards our other dog (8 yr old jackx) so I have fed them in separate spaces since then.
It became apparent that she also has attention aggression, so we have been dealing with that aswell, the problem is, she's starting to attack my older dog more frequently and more aggressively. It's at the point now where she will literally pick her up like a toy and shake her around, loud noises doesn't stop her and neither does the hose, I know you shouldn't do it, but I literally have to grab her collar and yank her off poor Chloe and hold her until she comes back to earth.
I just don't know what to do, she is generally a great dog, but I can't have this kind of behaviour happening, especially if one of the kids were accidentally to get in the firing line.
Any advice will be great