what does a rBST growth hormone do
rBGH is a genetically engineered artificial hormone injected into dairy cows to make them produce more milk. Despite opposition from scientists, farmers and consumers, the US currently allows dairy cows to be injected with recombinant bovine growth hormone (rBGH), also known as recombinant bovine somatotropin (rBST). Kansas: In 2009, the Kansas legislature passed a bill that deemed any milk, milk product or dairy product label with a statement related to milk composition including No Hormones, Hormone Free, rBST Free, rBGH Free, and BST Free as false and misleading.