Сохранить в закладки 1600213793973:
Standard | GB/T 25735-2010 |
On a dry basis | ≥98.0% |
Specific optical rotation | -29.0~-32.8° |
Loss on drying | ≤0.5 |
PH (1% aqueous solution) | 5.0~7.0 |
Arsenic | ≤2mg/kg |
Lead | ≤5mg/kg |
Cadmium | ≤2mg/kg |
Mercury | ≤0.1mg/kg |
Salmonella (in 25g sample) | Must not be checked out |
Tryptophan is an amino acid necessary for the growth and development of young animals, and is the main feed amino acid after lysine, methionine and threonine. Adding tryptophan can improve the utilization efficiency of amino acids in feed, increase feed intake, promote growth and improve immunity, at the same time, it can alleviate the stress response of piglets after weaning and improve breeding efficiency. It has been widely used in various feeds.
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