By Collier, R. and McGrath, M. F. and Vincini, J. L., Medecin Veterinaire du Quebec, 1999
Description
Since approval of the use of bovine somatotropin to enhance the milk yield of cows by the US Food and Drug Administration in 1993, about one-third of the 9 million cows in the USA have been treated. During the past 3 years it has been adopted by about 300 new herds a month. Adverse effects seem to have been limited to increases in the incidence of lameness and digestive disorders (without an increase in metabolic disorders). Its use in heifers is under investigation
Since approval of the use of bovine somatotropin to enhance the milk yield of cows by the US Food and Drug Administration in 1993, about one-third of the 9 million cows in the USA have been treated. During the past 3 years it has been adopted by about 300 new herds a month. Adverse effects seem to have been limited to increases in the incidence of lameness and digestive disorders (without an increase in metabolic disorders). Its use in heifers is under investigation
We welcome and encourage discussion of our linked research papers. Registered users can post their comments here. New users' comments are moderated, so please allow a while for them to be published.