Milk Production of Dairy Cows Fed Differing Concentrations of Rumen-Degraded Protein1 From: Journal of Dairy Science | Date: January 1, 2006| Author: Kalscheur, K F; VI, R L Baldwin; Glenn, B P; Kohn, R A | Copyright American Dairy Science Association Jan 2006. Provided by ProQuest LLC.Copyright information

ABSTRACT

Thirty-two multiparous and 16 primiparous Holstein cows in midlactation averaging 126 d in milk were used to determine the effects of rumen-degraded protein (RDP) concentration on lactation performance. Cows were assigned to diets in a repeated Latin square design with 3-wk experimental periods. Diets were formulated to provide 4 concentrations of dietary RDP [6.8, 8.2, 9.6, and 11.0% of dry matter (DM)] while rumen-undegraded protein remained constant (5.8% of DM). Diets cont...