 |
|
bST (bovine somatotropin) is a protein hormone that occurs naturally in all dairy cows. Some farmers choose to supplement some of their cows with rbST, also known as bovine growth hormone (rBGH), to help increase milk production. The safety of milk from rbST-supplemented cows has been affirmed and reaffirmed since it was approved for use in the U.S. in the early 1990s.
|
 |