Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Registered Capital:
1000000 RMB
Plant Area:
501~1000 square meters
Management System Certification:
ISO 9001, ISO 14000
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
Sample Available

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L-Tryptophan Feed Grade for Animals

Min. Order / Reference FOB Price
11 Tons US $7,000-15,000/ Ton
Port: Qingdao, China
Production Capacity: 10000ton/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Certification: ISO
Shape: Powder
Function: Amino Acid Additives
Type: Amino Acid
Transport Package: PP Woven Bag
Specification: feed grade

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Basic Info.

Model NO.
Amino Acid
HS Code
Certificate of Analysis for L-tryptophan 
Item Standard Test Result 
Purity(on a dry
matter basis)
PH(1% solution)5.0-7.05.1
Residue on Ignition%<=0.50.28
loss on drying <=0.50.29
Specific Rotation-29.0ºC-32.8ºC-32.5


L-Tryptophan Feed Grade

Supplementary of Amino Acid for Animal Nutrition


 L-Tryptophan is one of essential amino acids and the fourth limiting amino acid in animal diets, which means it could not be synthesized by the body, in addition, dietary supply through feed materials is usually insufficient.

The deficiency of L-Tryptophan was generally characterized as decreased feed intake and efficiency, and slow growth rate. Considering L-Tryptophan playing a key role in growth performance and feed efficiency, it is recommended to add L-Tryptophan in diet to achieve the optimal amino acid balance and fulfill the digestible tryptophan requirement of animals, especially piglets, sows and poultry etc.


Benefits of Adding Tryptopha in Feed:

Supplement L-Tryptophan in feed can offer following benefits for the industry, which have been proven by abundant trials and research.


l Increase the feed intake.


l Optimize the amino acid profile in feed, particularly essential amino acid profile


l Reduce crude protein level in diets without impact on animal growth performance, particularly low protein diets for post-weaned piglets

l Improve the growth rate, weight gain and feed efficiency.


l Enhance the overall growth, even under stress conditions for immune system, such as depressed, vaccination and deteriorated hygiene conditions.

L-Tryptophan Feed Grade for Animals
L-Tryptophan Feed Grade for Animals

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