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in Journal of the American Veterinary Medical Association

Abstract

Objective—To evaluate and define the characteristics of tail chasing in Bull Terriers and explore the association between tail chasing and other behavioral and physical characteristics.

Design—Survey and case-control study.

Animals—333 Bull Terriers (145 dogs with tail-chasing behavior and 188 unaffected dogs).

Procedures—Owners of Bull Terriers with tail-chasing behavior were surveyed regarding the age of onset, triggers, frequency, duration, interruptability, degree of disruption to the dogs' normal functioning and the owners' relationship with the dog, and associated medical and physical consequences. Associations of tail chasing with various behavioral and physical characteristics were examined by comparison of dogs with tail-chasing behavior with unaffected dogs.

Results—Phenotypic and developmental descriptions of tail chasing in Bull Terriers were defined. Associations of tail chasing with sex, trance-like behavior, and episodic aggression were found. Males were at an 8% greater risk for the diagnosis of tail chasing than females. Phobias and owner-directed aggression did not significantly associate with tail chasing in the final log-linear model, but did have significant associations in earlier analyses that did not include the behaviors of episodic aggression and trance-like behavior.

Conclusions and Clinical Relevance—In Bull Terriers with tail-chasing behavior, there was a slight increase in the susceptibility of males to develop tail-chasing behavior, compared with females. A close association of tail chasing with trance-like behavior and episodic aggression was identified.

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in Journal of the American Veterinary Medical Association

Abstract

Objective—To evaluate blanket and flank sucking and any association with pica in Doberman Pinschers.

Design—Survey and case-control study.

Animals—153 Doberman Pinschers (77 dogs with blanket or flank sucking and 76 unaffected dogs).

Procedures—Owners of Doberman Pinschers with blanket sucking, flank sucking, or both were surveyed regarding the age of onset, triggers, frequency, duration, interruptability, and associated medical and behavioral consequences. A putative association of blanket sucking and flank sucking with pica was examined by comparison of affected dogs with unaffected dogs.

Results—Apart from the difference in the object of oral activity between blanket and flank suckers, age of onset was the only variable that differed between dogs with the 2 conditions. Dogs with blanket or flank sucking had a higher prevalence of pica than the unaffected population.

Conclusions and Clinical Relevance—Blanket and flank sucking are apparently related conditions that can occur with sufficient intensity to cause medical sequelae. These nonnutritive suckling behaviors share similarities with other canine compulsive disorders and are associated with pica. Veterinarians should advise owners that flank and blanket sucking are abnormal, potentially harmful behaviors in dogs. Treatment should be considered for severely affected dogs or when flank or blanket sucking is associated with medical problems.

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in Journal of the American Veterinary Medical Association