By coincidence, I found a page on food aggression a couple of days ago via Twitter. I alluded to it in an earlier post. This is from a Boston rescue group that has worked on retraining food-aggressive dogs, because these dogs are often put down in shelters. I haven't had to deal with the problem myself, so I claim no expertise here. But the people who put this together have lots of experience with this problem.
Their program doesn't have a timetable. There are essentially four points when dealing with mild food aggression (dog shows teeth or growls when eating, but does not try to bite):
- Avoidance: no one approaches the dog when it is eating or in other situations that may provoke the behaviour.
- Say Please: at all times, the dog is made to sit before being petted, leashed, walked, let out of kennel, etc.
- Dog is always fed when people are present, but not close enough to provoke it.
- Retrieve training: playing fetch. The dog is not expected to retrieve to hand and the dummy is never taken from the dog. They wait for him to drop it. (Obvious problem for trained retrievers.)
The full page is here:
http://centerforshelterdogs.org/Home...ggression.aspx
Note that nobody goes up to the dog for any reason while it is eating. Nothing to provoke a reaction that could escalate and make things worse; nothing that could inadvertently reward inappropriate behaviour. The idea is to get the dog to understand that he can give things up (retrieve training) and that he doesn't have to protect his food (point 3).
I'd expect that trained retrievers, who are continually giving up highly desirable birds to their handlers, never have this problem. For obvious reasons it would be a serious problem in a bird dog or retriever.