That’s a million dollar question. Because ultimately, euthanasia may surface, a hot potato that nobody wants to touch. Surplus animals. That issue can be solved in different ways. Sending them to private individuals, that’s a no-no. The technology advances to the point that you can do artificial insemination, it might come to the point that the sex of the future embryo can be controlled, so technology should be able to help, at the same time, you really have to firmly deal with surplus animals without compromising their individual fate. May not be easy. Easier said than done.
