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Article: Effects of insulin, recombinant bovine somatotropin, and their interaction on insulin-like growth factor-I secretion and milk protein production in dairy cows
- Article from:
- Journal of Dairy Science
- Article date:
- April 1, 2002
- Author:
CopyrightCopyright American Dairy Science Association Apr 2002. Provided by ProQuest LLC. (Hide copyright information)
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Effects of Insulin, Recombinant Bovine Somatotropin, and Their Interaction on Insulin-Like Growth Factor-I Secretion and Milk Protein Production in Dairy Cows1
ABSTRACT
This trial was designed to test the effects of insulin, recombinant bovine somatotropin (rbST), and their interaction on milk protein and selected blood parameters in dairy cows. Eight Holstein cows (86+/- 10 d in milk) were divided in two groups and used in two replicates of a Latin square design with four animals, four periods, and four treatments: 1) intravenous infusion of saline, 2) infusion of saline and subcutaneous administration of 40 mg of rbST per day, 3) intravenous infusion of 12 mg of insulin per day coupled ...