1. Bovine somatotropin (Bst) Bovine somatotropin (Bst) is a metabolic protein hormone used to increase milk production in dairy cows

2. Somatotropin also stimulates the release of another growth inducing hormone Insulin-like growth factor 1 (IGF-1) mainly by the liver.

3. Bovine somatotropin (Bst), also known as bovine growth hormone, is an animal drug approved by FDA to increase milk production in dairy cows

4. Six secretory cell types (prolactin-, ACTH-, somatotropin- (STH-), TSH-, and two presumptive gonadotropin- (GTH-) secreting cells) were identified in light or electron microscope preparations of goldfish pars distalis.