L-Tryptophan is an essential amino acid for young animal's growth. It is effective when used for increasing the feed intake, reducing stress, promote sleeping and growing, it can also reduce the quantity of high quality protein in diary ration to lower the cost of feed.
L-Tryptophan(Feed Grade) Appearance:white or light brown powder Formula:C11H12N2O2 Molecular weight:204.23 Dosage:Mix in animal feed 0.5-1% per ton for swine feed 0.1-1% per ton for poultry feed Packaging:10kg paper bag Storage:Stored in cool and dry place Shelf life:2 years from the production date
Item
Specification
Description
White or light yellow crystal or powder
Assay(C11H12N2O2) (Dry Basis)/%
≥ 98.0
Loss on Drying/%
≤ 0.5
Crude ash/%
≤0.5
Specific rotation (a)Dt
-29.0° ~ -32.8°
PH(1% Aqueous Solution)
5.0 - 7.0
Arsenic/(mg/kg)
≤ 2
Pb/(mg/kg)
≤ 5
Cd/(mg/kg)
≤ 2
Hg/(mg/kg)
≤ 0.1
Salmonell(25g Sample)
Not Allowed
Moisture
≤ 0.5%
Heavy metals
≤10 ppm
Arsenic(As2SO3)
≤ 1.0 ppm
Ignited Residue
≤ 0.5%
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