The following are guidelines only. Please follow your veterinarian’s suggestions if they differ.

Many shelters and humane groups now require all cats and dogs to be altered prior to adoption, including 8 week old kittens and puppies. Per the Winn Foundation, early spay and neuter was the norm in the early 1900’s. Several veterinarians today do not alter cats or dogs until 7-8 months of age, which is after the first heat. This often results in another un-planned litter. Please encourage these veterinarians to read up on current information.

Kittens rebound from surgery faster and with less complications than an adult cat from spay/neuter surgery. Early spay/neuter is endorsed by the American Veterinary Medical Association.

With the killing rates at animal control shelters being in the millions annually, it makes sense to alter all pets prior to adoption to eliminate any 'oops' litters. (for statistics on numbers killed annually, click here)

Studies done:
1972 by M.A.Herron of Texas A&M
1974 by So. Oregon Humane Society
1975 by the Humane Society of the United States

Studies published:
Journal of the American Medical Association 1987
School of Veterinary Medicine at the University of Florida, April 1991
Journal of the American Veterinary Medical Association, January 1993
Angell Memorial Hospital in Boston (year unknown)
College of Veterinary Medicine Association (year unknown)

Videos are available:
American Humane Association 'The Case for Early Neutering: A Tool for Companion Animal Population Control'' Video & Booklet, $14. 9563 Inverness Drive E., Englewood, CA 80112, phone: 800 227-4645 or fax: 303 792-5333
W. Marvin Mackie, D.V.M., "Animal Birth Control' Video $12 Animal Birth Control 450 Arcadia Dr., San Pedro, CA 90731 fax: 310 547-5989.
Mass. Society for the Prevention of Cruelty to Animals @ 350 S.Huntington Ave, Boston, MA 02130
Alley Cat Allies, 45 minute video on TNR, 202 667-3630, fax: 202-667-3640

AVMA backs:
American Veterinary Medical Association, 1931 N. Meacham Road, Suite 100 Schaumberg, IL 60173 fax: 708 925-1329.


Cat Fancy March 1996
Cat Fancy August 1996


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