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Canine Behavior/Mother dog biting pup


Hello, I have 3 beagles,one of them had puppies recently they are 40 days old. She has had one other pregnacy before and everything went find with her puppies. When they where about to be born we separated the pregnant dog from the others, so she could be more confortable and we reunited them all when the puppies were 1 month old, everything was fine until the mother had a very bad fight with one of the other adult dogs. We thought it was because she was protecting her puppies so now the other dogs wouldnt mess with them again so we didnt do anything about it. The puppies are now eating solid food but one of the pups keeps wanting to get milk and the mother bit her hard on her nose and left a mark, we were worried but thought that maybe she accidentally bit too hard, but yesterday that same puppy had a very bad bit also around her nose and close to her eye and lots of blood came from that wound. I separated her from the mother, but I dont know if I should put her back with the mother when she heals?. I am going to sell them all but I am afraid that the mother has also become more aggressive or is it because I put all dogs together too soon?, I did it before and all the other adult dogs helped in the puppy training but this time they
all seem very stressed. This litter was bigger the first one they were 5 now she had 7 puppies. I will appreciate you answer my question.thanks

Remove all of the puppies from their dam and your other dogs and begin the process of finding them new homes.  Your dam is exhausted; she is behaving abnormally toward the puppy who is still trying to nurse.  Normally, a dam will lightly "discipline" a puppy (a snap, even pin the puppy to the ground); a bitch that is aggressive to the point of serious injury has lost patience and is at the point of exhaustion. The chance she will further harm (or worse) this neonate pup is high and it might begin to generalize to the others. This bitch already has developed issues with one other of your adult dogs; those issues might continue.  If so, please use followup feature to report the situation in full.

This bitch NEEDS TO BE SPAYED as soon as your veterinarian says her hormone levels have returned to normal.  You are not a breeder (professional) and you can see that your "pack" is now behaviorally unsettled.

Do NOT give those puppies away; ask a fair price.  You most likely do not have AKC papers for them (I doubt you registered the litter).  Be careful about where these puppies go, BUT GO THEY MUST and as soon as possible.  Create a contract (simple Word document) stipulating that both dogs (males) and bitches (females) in the litter MUST BE SPAYED AND NEUTERED and proof of same mailed to you by the new owners.  You may see a very sudden change in social hierarchy among your adult dogs.  If aggression between them or among them develops further, please use followup feature as I requested.

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Jill Connor, Ph.D.


I have spent my entire professional life rehabilitating the behavior of the domestic dog and I can answer any question regarding any behavior problem in any breed dog. I have answered more than 5,000 QUESTIONS on this site in the past (almost) eight years. If you are a caring, committed owner and need advice, I'm here for you. I am personally acquainted with my colleagues (Turid Rugaas, Ian Dunbar, etc.) who were members of an elite group in EGroups that I founded: K9Shrinks. THERE ARE NO QUICK FIXES for serious behavioral issues; not only is it unprofessional to offer same, it is also unethical. IF I ASK YOU SUBSEQUENT QUESTIONS, I NEED YOU TO INTERACT WITH ME. More information equals more credible answers and a more successful outcome. If you want ANSWERS THAT WORK, participate in any way I request. I'm quite committed to working on this site for YOUR benefit and the benefit of YOUR DOG. Help me in any way you can.


30 years of solving serious behavior problems in domestic dogs; expert in dog to human aggression; Internet columnist for for 5 years; former radio talk show host, WHPC.FM, Garden City, NY "Bite Back" (1995 through 2000). List owner, international animal behavior experts, Seminar leader: "Operant Conditioning and Learning"; "Aggression in The Domestic Dog"; "Solving Problem Behaviors" -- conducted for various training facilities on Long Island from 1993 through 2000. Former clinical director of "Behavioral Abnormalities" in conjunction with Mark Beckerman, DVM, Hempstead, New York.

Member, APDT (UK); Psychologists in Ethical Treatment with Animals

Harcourt Brace Learning Direct: "The Business of Dog Training" "The Fail Safe Dog: Brain Training, not Pain Training"

Ph.D., UC Berkeley

Past/Present Clients
Board of Directors: Northeast Dog Rescue Connection; The Dog Project; Sav-A-Dog Foundation; etc. Pro Bono counselor: Little Shelter Humane Society My practice is presently limited to forensics. I diagnose cause of dog bite, based upon testimony before the Court, for attorneys and insurance companies litigating dog bites, including fatal injuries. I also do pro bono work for bona fide rescue organizations, humane societies, et al, regarding such analysis in an effort to obtain release for dogs being held for death in municipal shelters in the US.

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