Amino Acids
L-Tryptophan
Also known as: L-Trp 98%
Fourth-limiting amino acid. Critical for feed intake and behavior; premium priced.
Applications by species
broilersswineshrimpsalmon
Top global export origins
China Japan Indonesia France
FeedMatch Group's RFQ Builder benchmarks landed costs across origins for your discharge port and shipment window.
Certifications & quality standards
GMP+ FAMI-QS
Buyer considerations
Advantages
- Improves feed intake in weaner pigs and stressed birds
- Serotonin precursor — reduces tail biting in swine
Constraints & risks
- Highest priced synthetic amino acid
Frequently asked questions
When do I supplement tryptophan?
Low-CP diets, weaner pigs, high-density housing where behavior control matters.
How much in nursery pig diet?
0.22–0.25% SID Trp in phase 1–2 nursery.
Are Halal-certified tryptophan sources available?
Yes — major producers offer certified Halal L-Trp.