L-Leucine — Feed Grade
Allzone Trading supplies feed grade L-leucine to feed mills, premix producers and specialty nutrition manufacturers 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-Leucine
- Grades
- Feed Grade
- Typical applications
- Branched-chain amino acid balancing · Specialty and research diets · Pet food and companion animal nutrition
- 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
- Branched-chain amino acid balancing
- Specialty and research diets
- Pet food and companion animal nutrition
- 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-Leucine (feed grade) — identifiers and the names buyers use
- CAS
- 61-90-5
- Typical assay
- ≥ 98.5%
- Chemical name
- (S)-2-amino-4-methylpentanoic 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-Leucine (feed grade) — what it is, where it is used, how it is chosen
L-Leucine is used in specialty and research-driven feeding programmes, aquafeed and companion animal nutrition rather than in commodity livestock diets, where corn-based rations usually supply leucine in excess. Canadian demand accordingly sits with Greater Toronto Area and Montreal pet food and aquafeed formulators and with premix houses producing specialty concentrates. Buyers should confirm branched-chain balance before adding leucine, since excess leucine drives valine and isoleucine requirements up.
Primary uses
- Specialty and companion animal amino acid formulations
- Aquafeed diets where leucine must be supplemented
- Research and trial diets requiring defined amino acid profiles
Applications
- Pet food and treat manufacture
- Aquafeed and specialty species diets
- Specialty premix and concentrate production
Advantages
- Allows fully defined amino acid profiles in specialty diets
- High declared assay, dry and blendable
- Useful where intact protein cannot deliver the target profile
Limitations to consider
- Rarely limiting in corn-based livestock diets
- Raises valine and isoleucine requirements through antagonism
- Specialised volumes make packaging and freight efficiency important
How to choose the right grade
- Check the whole branched-chain profile before supplementing
- Confirm the species and diet the profile is written for
- Match particle size to extrusion or dry blending
- 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-leucine
- Pet food and aquafeed grade
Comparable materials — how L-Leucine (feed grade) sits against alternatives
- Leucine-rich protein meals such as corn co-products
- Reformulation of the branched-chain balance
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive L-Leucine (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
- Branched-chain profile the diet targets
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 sealed, dry, off the floor and away from heat and direct sunlight
- Keep feed grade physically segregated from food and technical grades
- Rotate stock, re-close partial bags and record batch numbers against each blend
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-leucine-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
- Species and diet type
- Valine and isoleucine levels in the same formulation
Technical & procurement detail
Functional role of l-leucine in feed+
Leucine is a branched-chain amino acid that signals protein synthesis and is rarely first limiting, so its role in formulation is usually as the reference point against which valine and isoleucine are balanced rather than as a deficiency to be corrected.
Specifying the grade+
Because leucine excess suppresses the other branched-chain amino acids, both the declared assay and the target ratio must be stated. Confirm the assay basis and the ratio your matrix works to 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
Can leucine be over-supplied?+
Yes — excess leucine antagonises valine and isoleucine, so it is formulated as a ratio rather than maximised.
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-Leucine 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-Leucine 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-Leucine?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.

