This petition will be used to initiate subsidized production, distribution and application of these new nonsurgical contraception products.  Your support made,  and will continue to make, an impact.   Thank you very much from all our worldwide homeless pet friends.  

NewScientist June 17, 2023 Nonsurgical Cat Contraception for 3 years !

A non-surgical, single-dose contraceptive has remained effective for at least three years in six female cats, and the effect is expected to last for the rest of their lives. If it does, the injected contraceptive could replace surgery as a means of preventing pregnancies in cats.

It would also be the first permanent, non-surgical contraceptive for any animal. “If this is truly lifetime contraception, then it would be the first lifelong contraception that I’m aware of,” says William Swanson at the Cincinnati Zoo & Botanical Garden in Ohio, who worked on developing it.

It should be possible to adapt the technique for other mammals, too, perhaps including people.

Creating a one-dose permanent contraceptive is a goal many researchers are pursuing to control populations of animals – especially stray, feral or invasive ones – without having to kill them. There are already a number of products that provide long-lasting contraception in some species.

For instance, some wild horses in the US are darted with a vaccine called PZP, which provokes an immune reaction in females that prevents pregnancies. However, repeated doses are required.

In cats, spaying is the only permanent way to prevent females having kittens. This is a costly procedure that involves removing the ovaries, or ovaries and uterus, under anaesthetic.

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