L-Tryptophan — Feed Grade
Allzone Trading supplies feed grade L-tryptophan to feed mills and premix producers in Ontario, Quebec and across Canada. Assay and physical form differ between producers and are confirmed against supplier documentation at quotation.
At a glance
- Product
- L-Tryptophan
- Grades
- Feed Grade
- Typical applications
- Low crude protein swine diets · Poultry feed formulation · Aquaculture and pet food
- Packaging
- Packaging confirmed at quotation

- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Feed Grade
Specification confirmed against supplier technical data sheet at quotation.
Typical applications
- Low crude protein swine diets
- Poultry feed formulation
- Aquaculture and pet food
- Amino acid premixes
Why Canadian buyers choose us
- Feed grade enquiries handled as a separate specification from food grade material
- Grade, physical form, carrier and documentation confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the quoted grade
- LTL and FTL freight to feed mills and premix plants across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from smaller lots to full container loads
Typical industries served
Material identity
L-Tryptophan (feed grade) — identifiers and the names buyers use
- CAS
- 73-22-3
- Typical assay
- ≥ 98%
- Chemical name
- (S)-2-amino-3-(1H-indol-3-yl)propanoic acid
Also searched as
Abbreviations
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
L-Tryptophan (feed grade) — what it is, where it is used, how it is chosen
L-Tryptophan is a low-inclusion amino acid used once lysine, methionine and threonine are balanced, and it is also specified in swine programmes concerned with feed intake and animal behaviour. Because inclusion rates are small, Canadian demand is concentrated in Quebec and Ontario swine nutrition and in Prairie and Ontario premix blenders whose equipment can dose accurately at low rates. Assay and blending accuracy matter more here than tonnage economics.
Primary uses
- Completing amino acid balance in low crude protein swine diets
- Supporting feed intake and behaviour programmes in swine production
- Poultry ration balancing where tryptophan becomes limiting
Applications
- Swine nursery, grower and finisher feeds
- Poultry complete feeds
- Premix and micro-ingredient blending
Advantages
- Enables the final step of crude protein reduction
- Effective at low inclusion, so freight per unit of effect is small
- Established formulation ratios against lysine
Limitations to consider
- Low inclusion demands accurate micro-dosing and good mixer performance
- Light- and moisture-sensitive in storage
- Cost per kilogram is high relative to bulk amino acids, so waste matters
How to choose the right grade
- Confirm the tryptophan-to-lysine ratio and the diet phase
- Verify the mixer's accuracy and coefficient of variation at your inclusion rate
- Choose a particle size that resists segregation in premix
- Buyers searching for an alternative or second-source supplier should state the incumbent specification they are matching, because a like-for-like comparison depends on declared content, physical form and documentation rather than on the material name alone.
Typical grades
- Feed grade L-tryptophan 98%
- Premix-ready fine grade
Comparable materials — how L-Tryptophan (feed grade) sits against alternatives
- Higher intact protein inclusion where crude protein headroom exists
- Reformulation around the limiting profile when tryptophan is unavailable
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive L-Tryptophan (feed grade)
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- Declared amino acid content and the assay method behind it
- Physical form, particle size and flow behaviour in the dosing system
- Moisture, ash and heavy metal limits
- Feed-ingredient declaration and traceability documentation
- Inclusion rate and mixer accuracy at that rate
Packaging options (industry-standard)
- 25 kg bag or fibre drum — the usual micro-ingredient format
- Foil-lined or moisture-barrier packaging for hygroscopic and oxidation-sensitive actives
- Carton or pail for very low-inclusion actives handled by hand
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Store cool, dry and sealed; potency loss accelerates with heat and humidity
- Keep original moisture-barrier packaging closed until the blend is made
- Use first-in, first-out rotation and respect the declared retest or shelf-life date
Documentation available
- Technical data sheet (TDS) for the exact feed grade offered
- Safety data sheet (SDS) in the format required for Canadian import
- Certificate of analysis (COA) against the confirmed production batch
- Feed-ingredient declaration and label statements the receiving mill needs
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
RFQ checklist for l-tryptophan-feed-grade-canada
Include these fields to receive an accurate Canada-landed quotation
- Species, production stage and the feed type the ingredient goes into
- Whether the material is used straight at the mill or through a premix or concentrate
- Declared content, activity or potency your formulation matrix assumes
- Annual volume and expected per-shipment quantity
- Packaging format your intake system can receive and handle
- Documentation and feed-labelling statements required per shipment
- Delivery province or port of discharge
- Inclusion rate per tonne of finished feed
- Whether the material is dosed through a premix
Technical & procurement detail
Functional role of l-tryptophan in feed+
Tryptophan becomes limiting once lysine, methionine and threonine are supplemented and crude protein is reduced further. Beyond protein synthesis it is the precursor of serotonin, which is why it is associated with feed intake and behaviour in intensively housed pigs.
Specifying the grade+
Inclusion levels are low, so assay accuracy and homogeneous distribution through the mix matter more than bulk price per kilogram. State your dosing method and the assay basis in the formulation matrix when requesting a quotation.
Documentation and specification+
Feed grade material is quoted against the specification your mill or premix formulation requires. Allzone confirms grade, declared content, physical form and any carrier or coating with the supplier before quoting, and shares the technical data sheet and safety data sheet for the exact material offered.
Frequently asked questions
At what stage does tryptophan become limiting?+
Typically as the fourth limiting amino acid in reduced crude protein diets, after lysine, methionine and threonine are supplemented.
Is this quoted as feed grade material?+
Yes. Feed grade is quoted as a separate specification from food or technical grade, with its own documentation for the exact material offered.
What packaging is available?+
Packaging is confirmed with the supplier at quotation for the grade and quantity discussed.
Can you deliver to feed mills across Canada?+
Yes. LTL and FTL freight is arranged across Ontario, Quebec and Western Canada, with container-direct supply for repeat volumes.
Technical knowledge for L-Tryptophan Feed Grade Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Application Guides
Related products
Materials commonly quoted alongside L-Tryptophan by the same plants.
Silicon Dioxide (Feed Grade)
Anti-caking and free-flow agent — free-flow of compound feed and premixes

Bentonite
Mineral binder and carrier — free-flow of compound feed and premixes

Zeolite
Anti-caking and free-flow agent — free-flow of compound feed and premixes
Need a quote on L-Tryptophan?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.

