How to Buy Fish Meal — Buyer's Guide

How to Buy Fish Meal — A Buyer's Procurement Guide

In short

Fish meal is bought on protein, freshness and oxidative stability rather than protein alone. The decisive parameters are TVN, histamine, free fatty acids, antioxidant treatment and Salmonella status — all of which change with time and temperature, so the contract must state where and when quality is determined.

Last reviewed: 2026-08-02

How buyers define requirements

State the grade you need (standard, prime, super-prime, LT / low-temperature) and the species or origin group.
Define the digestibility expectation, not just crude protein — LT meals command a premium for a reason.
Specify the antioxidant type and dose, and whether ethoxyquin is permitted in the destination market.
Fix maximum age at shipment; freshness parameters degrade in storage even in good conditions.
Confirm whether the destination requires a veterinary health certificate and an approved-establishment number.

Specifications that matter

Parameter	Typical requirement	Why it matters to a buyer
Crude protein	62–68%	Grade definition and the basis of price adjustment.
TVN (total volatile nitrogen)	≤ 120 mg/100 g	The main raw-material freshness indicator; high TVN signals decomposed feedstock.
Histamine	≤ 500–1,000 ppm by grade	Biogenic amine associated with gizzard erosion and reduced performance.
Free fatty acids	≤ 7–10%	Oil hydrolysis indicator; predicts rancidity development in storage.
Peroxide value / TBARS	Low and antioxidant-protected	Oxidative status; drives palatability and vitamin destruction in the finished feed.
Fat	6–11%	Energy contribution and oxidation exposure.
Moisture	≤ 10%	Microbial and self-heating risk above the limit.
Ash / salt / sand	≤ 16% / ≤ 3% / ≤ 1%	Detects mineral dilution and adulteration.
Salmonella	Absent in 25 g	Legal requirement in most import markets.

Certifications commonly requested

— GMP+ B2 or equivalent feed-safety certification for the producing plant
— IFFO RS (MarinTrust) responsible-supply certification where sustainability is required
— Approved-establishment listing for the destination market's veterinary authority
— MSC or fishery-specific chain of custody where the customer demands traceable origin
— Dolphin-safe / by-catch declarations where relevant to the end market

Laboratory reports to review

— Certificate of Analysis per lot including TVN, histamine, FFA and antioxidant residual
— Salmonella certificate with the sampling plan and laboratory accreditation
— Veterinary health certificate matching the exact lot and container numbers
— Heavy metals (cadmium, mercury, lead, arsenic) and dioxin/PCB screening
— Independent surveyor sampling report — composite sampling, not a single grab

Packaging considerations

— 50 kg or 25 kg PP bags with an inner liner for moisture control
— Big bags for mechanised plants; confirm the liner and UV rating
— Bulk only where the receiving plant has closed intake and rapid turnover
— Bag marking must carry lot, production date and antioxidant declaration

Shipping considerations

— Self-heating cargo: confirm IMDG/IMSBC classification and required antioxidant certification before booking
— Ventilated containers or ventilated stow, and temperature monitoring on long routes
— Avoid prolonged tropical port dwell; oxidation and histamine formation accelerate with heat
— Insure against heat damage explicitly — standard cover may exclude inherent vice

Storage considerations

— Cool, dry, ventilated storage away from direct sun and heat sources
— Restrict pile height to limit self-heating and monitor internal temperature
— Use within 6 months of production where possible; retest freshness parameters before long storage
— Keep retained samples and re-test TVN and peroxide value before use in sensitive diets

Procurement risks

Freshness degradation in transit

Control: Define TVN and histamine limits at discharge, not at production, and appoint an independent surveyor.

Rejection at import for Salmonella or ethoxyquin

Control: Confirm the destination's residue rules before booking and place import-conformity risk on the seller.

Adulteration with non-marine protein or minerals

Control: Ash, salt, sand and microscopy checks, plus first-order testing from any new supplier.

Self-heating incident

Control: Antioxidant certification, correct declaration and monitored stowage.

Price volatility around biomass quota news

Control: Staged coverage and index-linked contracts rather than single large spot commitments.

Common purchasing mistakes

— Buying on crude protein alone and ignoring TVN, histamine and FFA
— Accepting production-date analysis for a cargo that will be tested three months later
— Overlooking whether the plant is listed for the destination's veterinary import rules
— Storing high-fat meal in hot warehouses and then blaming performance on formulation
— Skipping microscopy on the first lot from a new supplier

Frequently asked questions

What is a good TVN level?

Prime grades are typically contracted at 120 mg/100 g maximum, with premium LT meals well below that. What matters more than the number is where it is measured — a load-port TVN says little about the material you will actually use.

Do I need IFFO RS / MarinTrust certification?

Legally, usually no. Commercially, increasingly yes: aquafeed and export-oriented buyers are being asked to evidence responsible sourcing, and adding it later mid-contract is more expensive than specifying it upfront.

Is ethoxyquin still allowed?

It depends entirely on the destination market and has changed in several jurisdictions. Confirm the current rule for your import country and specify a permitted antioxidant system in the contract rather than leaving it to the producer's default.

How should I sample a fish meal shipment?

Composite sampling across the lot by an independent surveyor, split into three sealed parts — buyer, seller and umpire laboratory. Single grab samples are not defensible in a dispute.

Procurement checklist

Fish Meal Procurement Checklist

Fish meal quality changes with time and temperature. This checklist keeps freshness, documentation and storage under control from RFQ to consumption.

Open the checklist