The study concluded amino acid balancing can effectively maintain and even improve performance, while reducing the need to overfeed protein, a win-win for both the dairy producer and the environment.
Feed the right amino acid source
When it comes to amino acid balancing, both the quality and quantity of lysine and methionine count. Many dairies today feed commodity blood meal in an attempt to supply optimal levels of lysine to the diet. Research conducted by Marshall Stern, PhD at the University of Minnesota2 and Normand St-Pierre, PhD, at The Ohio State University3 found lysine levels in blood meal to be extremely variable and inconsistent. Day-to-day variability in the nutrients delivered in blood meal can negatively impact cow performance and production.
Delivering consistent levels of lysine to the small intestine can translate to improved feed efficiency, nutrient utilization and production and, ultimately, greater milk check profits.
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1 Varga GA. Why Use Metabolizable Protein for Ration Balancing? in Proceedings, Penn State Dairy Nutrition Workshop 2007;51–57.
2 Based on Stern MD, Calsamiglia S. Predicting Digestibility of Dietary RUP and Its Constituent Amino Acids. Paper presented at: Eleventh ADSA Discover Conference on Food Animal Agriculture; August 28 – 31, 2005; Nashville, Indiana.
3 Boucher SE. Challenges of Predicting Metabolizable Lysine Content of Ingredients, in Proceedings. Cornell Nutrition Conference for Feed Manufacturers 2009;17-28.