Pet Behavior Problems Expert Forum
sudden aggressive behavior
About This Forum:

This forum is for pet health questions regarding Behavior Problems & Therapy.

Font Size:
A
A
A
Background:
Blank
Blank
Blank
This expert forum is not accepting new questions. Please post your question in one of our medical support communities.
Blank Blank

sudden aggressive behavior

Our chow mix has lived with her best friend, a border collie for 10 yrs. They love each other. Chow (angel) a female has been spayed, and border collie (bandit) a male has been neutered. They hate to be separated so they never have been. A couple weeks ago, for no reason Angel started attacking Bandit. We yelled at her and tried to get her off of him but she would not stop. We noticed Bandit was bleeding so my husband pulled Angel off and I routed Bandit out of pen into the house. Angel barked all night. Last week, due to cold weather we brought them into the garage. Angel started again, just aggressively attacking Bandit. Bandit started yelping and this made her madder. We actually had to pull her off him and put a leash around her neck really tight to get her out of the garage. Now Bandit is really hurt and doesn't want to go arounf Angel, yet she will bark and cry all night long because he isn't with her. Has she lost her mind or what?
Type of Animal
:  
dog
Age of Animal
:  
11yrs old
Sex of Animal
:  
Female
Breed of Animal
:  
black chow mix
Last date your pet was examined by a vet?
:  
February 04, 2007
City
:  
charlestown
State/Province
:  
indiana
Other pertinent test results
:  
uti, was put on antibiotics,
Related Discussions
931697_tn?1246245983
A sudden behavior change like that in an a11 year old suggests a medical reason.  It's not normal behavior for a dog to suddenly attack another dog it has lived with for a considerable period of time. - dogs just don't normally do that either without some eliciting event that caused their relationship to change or because the dog has a medical problem.  
Get her to your  regular veterinarian to start, and s/he may even recommend a neurologist.  
And if you aren't already, the dogs now have to be separated until you can get help.  Your border collie's safety should be your primary concern.
Your chow can still be attached to the other dog - hence the whining - but still be motivated to attack him as well.
Blank
MedHelp Health Answers
Blank
Weight Tracker
Weight Tracker
Start Tracking Now
RSS Expert Activity
242532_tn?1269553979
Blank
The 3 Essentials to Ending Emotiona...
Sep 18 by Roger Gould, M.D.Blank
242532_tn?1269553979
Blank
Control Emotional Eating with this ...
Sep 04 by Roger Gould, M.D.Blank
242532_tn?1269553979
Blank
Emotional Eating Control: How to St...
Aug 28 by Roger Gould, M.D.Blank