My 4 month old puppy is very dominant over her littermates. She even tried to bite my husband when he tried to stop her. Do you have any suggestions?

I have read a few of your articles on dominance in dogs, but I did not see one on dominance in puppies. My female is 4 months old. She is very high drive and has, over the last few weeks, become extremely dominant over her litter mates (I know you do not like the idea of raising more than one puppy at a time but everyone is afraid to buy the remaining puppies because they are afraid that they are "mean").

I do not kennel them together, but I have allowed them (there are 4 total) to play together during the day. The smallest female (who is not afraid of anything or anyone) now attacks the puppies when they come close to her. She will grab their back or neck and take them down to the ground growling. She will then stand over them until they submit. When my husband tried to pull her away so we could put her up, she tried to bite him.

We are working them all with obedience, but I am considering sending her to a trainer. The only problem is that I am not sure if she should be corrected at this young of an age. She wears a prong during walks (this is self correction to stop her from pulling and it has worked). I do not want her to be messed up by anyone.

I now do not allow her with the other puppies at all, but I also am concerned about taking her for walks where there will be other puppies. So far, this behavior has not reached beyond puppies (she does not act this way with the adult dog I have).

Any suggestions?