Univ of NE Report 2011: Lysine Requirement for Barrows Fed Ractopamine

A total of 36 individually penned barrows (initial weight = 176 lb) were used in an experiment conducted to determine the lysine requirement for barrows fed ractopamine during the last 85 lb of the finishing phase. There were six dietary treatments that were cornsoybean meal-based with additional crystalline amino acid supplementation. Pigs were assigned to one of six dietary treatments for the duration of the experiment.