SACRAMENTO, Calif. (AP) — Veterinary surgeons at the Sacramento Zoo are removing obstructions caused by stones in a Sumatran tiger's urinary tract.
The surgeons from the University of California, Davis, School of Veterinary Medicine and the zoo began performing the minimally invasive procedure early Tuesday. Doctors planned to implant thin, flexible tubes that will allow urine to drain normally from the cat's kidneys to its bladder.
The 15-year-old male tiger named Castro is originally from Sumatra, an island in western Indonesia. It has been at the Sacramento Zoo since 1999.
It is one of about 200 Sumatran tigers in zoos around the world. Fewer than 500 are believed to live in the wild.
Earlier this year, Castro was diagnosed with lymphoma, a type of cancer. The tiger is undergoing chemotherapy.