HORTICULTURE

Detailed explanation-1: -Bovine somatotropin (bST), also known as bovine growth hormone, is an animal drug approved by FDA to increase milk production in dairy cows. This drug is based on the somatotropin naturally produced in cattle.

Detailed explanation-2: -Recombinant bovine growth hormone (rBGH) is the syn-thetic form that is injected into cows to increase milk production [2]. This hormone, both the natural and synthetic forms, stimulates milk production in mammals by increasing the production of insulin-like growth factor-1 (IGF-1) [2].

Detailed explanation-3: -Recombinant bovine somatotropin (usually “rBST"), is a synthetic version of the bovine growth hormone given to dairy cattle by injection to increase milk production.

Detailed explanation-4: -The ability of bovine growth hormone (bGH), or bovine somatotropin (bST), to temporary increase lactation yield was discovered in the 1930s when it was first extracted from pituitary gland and injected to dairy cows [1].