Bouvier's can be successful IGP (formerly Schutzhund/IPO) dogs so remember that. There are drives there that you may not see in your other dogs.
Also, you may be causing the issues. First of all, you feed them next to each other. Stop that. Put the dogs in separate crates or rooms at meal time and keep them separated until all food is gone (or 20 minutes have passed and you take all the food up). Feeding dogs next to each other is just asking for trouble (even though you are not seeing it at the food dish).
Toys can be trouble. One dogs wants what the other has. It is just that way. Take up the toys.
Then, as noted above, keep track of when this happens so you can figure out the triggers if there are any. Then work to avoid the triggers.
If none of that works, then crate and rotate.. which is a lot of work but positively prevents fights.
As to "reputable breeder" that makes a "Doodle dog" there are none. There ARE opportunists who see a good way to make money and so they will breed for that reason (which is NOT why any dog should be bred). I am glad to hear the breeder is trying to help and is against neutering until older. I never neuter a male dog unless the dog HAS a problem. Neutering a dog does not "fix" temperament the way it can in Tom Cats or Stallions or Bulls.
Also, you may be causing the issues. First of all, you feed them next to each other. Stop that. Put the dogs in separate crates or rooms at meal time and keep them separated until all food is gone (or 20 minutes have passed and you take all the food up). Feeding dogs next to each other is just asking for trouble (even though you are not seeing it at the food dish).
Toys can be trouble. One dogs wants what the other has. It is just that way. Take up the toys.
Then, as noted above, keep track of when this happens so you can figure out the triggers if there are any. Then work to avoid the triggers.
If none of that works, then crate and rotate.. which is a lot of work but positively prevents fights.
As to "reputable breeder" that makes a "Doodle dog" there are none. There ARE opportunists who see a good way to make money and so they will breed for that reason (which is NOT why any dog should be bred). I am glad to hear the breeder is trying to help and is against neutering until older. I never neuter a male dog unless the dog HAS a problem. Neutering a dog does not "fix" temperament the way it can in Tom Cats or Stallions or Bulls.