How much is really needed?
In 2001, the National Research Council (NRC) conducted a meta-analysis and determined that the break point for metabolizable (MP) lysine is 7.2%. MP lysine is the amount of lysine passing through the rumen in a form that is available for absorption in the small intestine. This level of MP lysine:
- Supports maximum milk production
- Optimizes milk component levels
- Allows for better nitrogen efficiency
Balancing for AA has, without question, been a contributing factor to higher milk yields, higher milk component levels, and greater herd profitability for many dairy producers.