l-lysine is an essential amino acid that animal must obtain from food, l-lysine is primary restrictive amino acid; the main job for l-lysine is to participate in the compound and precipitation of protein; besides, it can boost the absorption and utilization of the metallic elements. As an environment friendly feed additive, l-lysine can ensure the growth of the animal and reduce the protein level and cost in the diary ration at the same time.

assay/%: ≥98.5

loss on drying/%: ≤1.0

residue on ignition/%: ≤0.3

ammonium salt/%: ≤0.04

heavy metal(pb)/(mg/kg): ≤0.003  package: 25kg paper composite bag

arsenic(as)/(mg/kg): ≤0.0002     storage: cool dry and good ventilation

specific rotation: +18.0°~+21.5°  shelf life: 2 years