1L-lysine level in grains is relatively low. Although legumes are good sources of L-lysine,its activity in soybean meal, a main feed raw material,is quite low due to heat processing and long-term storge.To improve amino acid balance and feed utilization, a certain amount of L-lysine is often added to the feed .It has been proven by a lot of feeding trails that introduction of L-lysine can promote livestock grown and crude protein protein level required by improving protein utilization .This will decrease feeding cost and increase econmic returns .Right amount of L-Glutamine has been especially added to the product to enhance livestock immunity and promote muscle growth .
