Search Search Search You must have JavaScript enabled to use this form. Topic Programs & Operations Keeping Pets in Homes Return to Owner Safety Net Spay/Neuter Surgery Shelter Medicine (-) Programs & Services Shelter Medicine at the ASPCA Shelter Medicine Support Foster Animal Health Care Overall Guidelines Cruelty & Disasters Animal Cruelty Investigations Enrichment & Behavior Behavior Adoption & Placement Community Cats Foster Care Active FiltersPrograms & Services Group 9 Clear All New Research Shows Ovarian Pedicle Tie Safe in Feline Spay Surgery Learn more about spaying female cats with the ovarian pedicle tie (OPT) technique, which can be performed 30% faster than traditional sutures with comparable hemorrhaging risks. How to Determine a Kitten’s Age This four-step process will help you find a kitten's age. (Plus, print out our poster and keep it handy for accurate aging!) Pagination Previous page ‹ previous Page 1 Page 2 Current page 3