What are Bovine Growth Hormones?
Bovine somatotropin (abbreviated bST and BST) is a protein hormone produced in cattle. It is also called bovine growth hormone, or BGH. Monsanto, a U.S.-based corporation, first synthesized the hormone in large quantities using recombinant DNA technology and marketed it as “POSILAC” beginning in 1994. The resulting product is called recombinant bovine somatotropin (rBST), recombinant bovine growth hormone (rBGH), or artificial growth hormone.[1] Monsanto sold its POSILAC Brand Dairy Product and Related Business to Elanco Animal Health, a division of Eli Lilly and Company in August 2008.