/puts tinfoil hat on/
Sounds like another means for population control being injected into the food supply. If the GMO grains and airport x-rays don't get your reproductive organs, then the chemical castration via pulled pork BBQ will.
/takes off tinfoil hat/
I recommend not using it. If you do use it be very, very, very careful not to stick yourself with the 'castration vaccine' or you can end up sterilized as has been documented in Europe and by the maker of the drug. In addition to being another expense and additive to your food it is dangerous.
Far better is to simply breed, feed and manage away from taint. See: