About a year ago, the Food and Drug Administration approved a drug that gives pig farmers another way to control boar taint. Taint is a characteristic odor that develops in pork when male pigs become sexually mature. As an alternative to castrating the animals, Pfizer introduced a protein that could be injected. It suppresses the testicular function by causing a pig’s immune system to reduce levels of the two hormones responsible for the flavor: androstenone and skatole.
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