Bovine somatotropin, or bST, is a natural protein produced in the pituitary glands of all cattle and it helps adult cows produce milk. Milk from cows receiving supplemental bST is unchanged and just as wholesome and nutritious as always - full of calcium, protein, phosphorus and vitamins. In fact, the level of bST in milk remains the same.

Because POSILAC benefits large and small herds alike, it can play a critical role in helping farmers with limited resources here and around the world. The use of supplemental bST allows dairy farmers to produce more milk with fewer cows, thereby providing dairy farmers with additional economic security as well as providing related environmental benefits. We encourage you to explore this web site to learn more about POSILAC.

Or click here to view a video news clip on supplemental bST from the American Farm Review (WMV file) series hosted by Sixty Minutes' Morley Safer.

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