Lysine is one of the essential amino acids for animals and plays a central role in feed nutrition. Its core function isas the first limiting amino acid, it participates in protein synthesis and directly determines the growth rate, feed efficiency, and overall production performance of animals, especially pigs and poultry.

Specifically, its main functions include:

1. Promoting growth and tissue repair: It is the fundamental building block for synthesizing body protein, muscle, enzymes, and hormones.

2. Improving feed conversion: It balances the amino acid profile, allowing other amino acids in the feed to be utilized more effectively, thereby reducing feed costs.

3. Enhancing carcass quality: It helps increase lean meat percentage and reduce backfat thickness.

4. Strengthening immune function: It is essential for the synthesis of antibodies and immune factors.

5. Influencing reproductive performance: It has a significant impact on the fertility of breeding stock and poultry.