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Canine Behavior/obsessive tail chewing in a german shepard

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Question
She is 2 years old, was adopted from a family as a puppy who had several other dogs. Is extremely attached to her male owner who trys to take her everywhere he goes and he works mostly from home. I take care of her the few times he has to leave town. Dog is absolute sweetheart but worships her master. The minute he leaves her site she starts chasing her tail, within a few minutes she starts chewing the hair off. As of right now she is on meds (just started). When I have her in my care and have to leave her alone for short periods she will do this also but when I am gone I put a plastic "cone" on her to prevent the chewing. I would love to find some help for her.
   When she chews the hair off it is nearly to the skin. A veterinarian had told the owner that you can always "bob" the tail if it became too bad or she started chewing the skin. My fear would be that she would fixate on another body part to destroy.
    THank you for any advice you can give.

Answer
This isn't your dog so you have no control over what happens to her, although your concern is greatly appreciated by me (and the dog, I have no doubt).

Do you know if the dog exhibits this behavior when WITH the owner - have you ever questioned him about this?

I have no idea what sort of "meds" she's on.  SSRIs have the high possibility of making this behavior worse (since they can, and sometimes do, cause heightened anxiety in humans, who can at least report it).  There are medications that target OCD.  Tail chasing can be a sign of low level epilepsy (and yes, stress can exacerbate this), response to pain (orthopedic, spinal, intestinal).  If the veterinarian who gave this advice is the one who prescribed these "meds", the dog should NOT BE ON THEM.  He's an idiot.

The dog requires comprehensive examination by a veterinary behaviorist.  This will entail base line neurological exam, orthopedic evaluation, comprehensive blood work, possible ultrasound or body x-ray, etc., as well as full medical history (is dog on topical flea and tick prevention?  If so, this could be contributing).  The owner must, obviously, be willing to meet the expense.

To find such a professional, contact the veterinary college in your geographical area or see the following sites:

http://www.veterinarybehaviorists.org/
http://www.avsabonline.org/avsabonline/

Putting a cone on her when you are unable to observe is an excellent stop gap measure for the short term.  IF you SEE HER begin this behavior in front of you, put her on leash and merely sit with her on restraint for a few minutes: do not make eye contact, say nothing, do nothing.  Leash restraint often engages cognition in a manner that stops even low level seizure behavior.  Redirecting her to a well trained (with positive reinforcement) behavior might help the dog (over time, perhaps months) to "learn" a new reaction to whatever drive is engaged in this behavior, providing it is not of biologic origin.

Canine Behavior

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Jill Connor, Ph.D.

Expertise

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.

Experience

30 years of solving serious behavior problems in domestic dogs; expert in dog to human aggression; Internet columnist for ThePetChannel.com for 5 years; former radio talk show host, WHPC.FM, Garden City, NY "Bite Back" (1995 through 2000). List owner, international animal behavior experts, K9Shrinks@egroups.com. 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.

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

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

Education/Credentials
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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