The Regional Shelter Relinquishment Study sponsored by the National Council on Pet Population Study and Policy (NCPPSP) is a national research project designed to explore the characteristics if relinquished dogs and cats, their owners, and the reasons for relinquishment.  The NCPPSP Regional Shelter Study found that behavioral problems, including aggression toward people or nonhuman animals, were the most frequently given reasons for canine relinquishment and the second most given reason for feline relinquishment.  No association was found between category of relinquishment (behavioral, mixed, nonbehavioral) and gender, number of times mated (males) number of litters (females), purebred status, and number of visits to the veterinarian within the past year, for either dogs or cats.  Associations were found between category of relinquishment and number of pets in the household, number of pets added to the household, neuter status of female dogs and cats, neuter status of male dogs, training level, age of pet relinquished, length of ownership, and pets acquired from shelters.  Association also were found between the state in which the pet was relinquished and income level of owner.

Behavioral Reasons for Relinquishment of Dogs and Cats to 12 Shelters.  Salman, M.D.; Hutchison, J.; Ruch-Gallie, R.; Kogan, L.; New, J.C., Jr.; Kass, P.; Scarlett, J.  Journal of Applied Animal Welfare Science, 3(2), 93-106.  July 2000.

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