Zinc Oxide & Trace Mineral Premix — Especificações, fornecedores e RFQ
Zinc Oxide & Trace Mineral Premix: especificações técnicas, origens globais, certificações GMP+/FAMI-QS e cotações verificadas. Feed-grade zinc oxide and the…
Zinc Oxide & Trace Mineral Premix
Also known as: Zinc oxide feed grade · ZnO 72% · Zinc sulphate monohydrate · Zinc hydroxychloride · Trace mineral premix · TM premix · Micro-mineral premix
Feed-grade zinc oxide and the finished trace mineral premix built around it — zinc, copper, manganese, iron, selenium, iodine and cobalt blended to a formula. Bought on guaranteed assay, cadmium and lead load, carrier quality and homogeneity, not on price per tonne.
Applications by species
Top global export origins
FeedMatch Group's RFQ Builder benchmarks landed costs across origins for your discharge port and shipment window.
Certifications & quality standards
Buyer considerations
Advantages
- Highest zinc concentration of the traded sources (72–80% Zn), so freight per unit of element is low
- Finished premix moves QC, weighing and homogeneity risk to a certified specialist site
- Hydroxy and chelated grades protect vitamins and enzymes in the same premix and allow 20–40% lower dosing
- Small tonnage, large performance leverage — specification discipline pays far more than price shopping
Constraints & risks
- Cadmium in secondary (recycled) zinc oxide is the classic failure and is invisible without assay
- Assay ranges 60–80% Zn between grades; headline price per tonne is meaningless without it
- Premix formulas are proprietary, which makes like-for-like comparison between suppliers hard
- Hygroscopic sulphate co-ingredients cake and degrade vitamins in the same blend
- Chelate quality cannot be verified by simple assay — inorganic salt inside a 'chelate' is a known fraud
Buyer-grade specification: zinc sources and finished premix
What to write into the contract for straight zinc sources and for a finished trace mineral premix. Levels are added ppm of the total diet; reconcile against your matrix, the basal contribution and the destination market's legal maxima.
| Item | Guaranteed analysis | Typical use | Contractual limits to insist on | Relative cost per unit of delivered Zn |
|---|---|---|---|---|
| Zinc oxide, feed grade (primary) | Zn min 72% (premium 75–80%), from primary zinc | Volume zinc source in poultry, swine and ruminant diets | Cd ≤ 5 mg/kg, Pb ≤ 10 mg/kg, As ≤ 3 mg/kg, water-insolubles, particle size, origin of the zinc | Baseline (index 100) |
| Zinc oxide, secondary / recycled | Zn 60–72%, variable | Avoid unless fully assayed and legally cleared | Cadmium and lead certificate per lot, source declaration | Cheaper per tonne, frequently dearer after rejections |
| Zinc sulphate monohydrate | Zn min 35%, moisture controlled | Where solubility is wanted and premix vitamin load is low | Zn assay, free acidity, moisture, caking, heavy metals | 10–25% higher; hygroscopic |
| Zinc hydroxychloride (hydroxy) | Zn min 55%, low solubility in the premix | Vitamin- and enzyme-rich premixes, pelleted feed | Zn assay, crystal form, heavy metals, EU authorisation number | 20–40% higher per unit; often net-cheaper at reduced dose |
| Zn proteinate / glycinate (organic) | Zn 15–26%, chelation evidenced | Breeder, layer, dairy transition and premium aqua diets | Chelation evidence (IR or chromatography), ligand declaration, no inorganic top-up | 2–4× per unit; justified where bioavailability limits performance |
| Finished trace mineral premix | Declared ppm per element in the finished feed at a stated inclusion rate | Standard route for most commercial mills | Element assay per lot, source form per element, carrier and moisture, homogeneity CV ≤ 5%, no cross-contamination with medicated lines | Compare on cost per tonne of finished feed at declared levels |
Never compare premix offers on price per tonne of premix. Convert each offer to cost per tonne of finished feed at the declared element levels, then correct for the source form's relative bioavailability. A premix that is 30% dearer per tonne but built on hydroxy and organic sources at a lower inclusion is routinely the cheaper buy.
Buying this as part of your additive programme
Zinc Oxide & Trace Mineral Premix is bought inside the additives category, where specification discipline — not price per kilogram — decides the real cost. Our feed additives procurement guide covers how to write a quotable specification, which certifications and registrations to demand (FAMI-QS, GMP+, EU Reg. 1831/2003), when a premix beats buying straights, and how to normalise offers to delivered cost per unit of active.
Key specifications to contract
Heavy metals — lead, cadmium, arsenic, mercury — accumulate in animal tissues and are regulated in feed materials, with mineral sources and marine ingredients carrying the highest inherent risk.
Purity covers everything that should not be in the cargo — foreign matter, other-grain admixture, hulls, soil, packaging debris and deliberate adulterants — and is verified by physical inspection plus targeted analysis.
Particle size distribution governs mixing homogeneity, pellet quality, digestive efficiency and segregation risk, and is specified as a geometric mean diameter with a distribution, not a single sieve figure.
Ash is the inorganic residue after complete combustion; it indicates total mineral content and, in protein meals, is a practical marker for bone, shell, sand or mineral adulteration.
Each parameter is explained in the specification library — what it measures, how it is tested and what to verify.
Laboratory testing programme
| Test | Why buyers run it |
|---|---|
| Assay of the declared element | Confirms the purchased mineral content, not just the salt identity |
| Heavy metals (Pb, Cd, As, Hg) by ICP-MS | Mineral sources are the primary heavy-metal entry route into feed |
| Fluorine, where phosphates are involved | Regulated and tightly limited in phosphate feed grades |
| Particle size distribution | Segregation control in premix and mash |
| Acid-insoluble ash / insolubles | Detects inert filler |
Storage, packaging, transport & handling
Generally 12–24 months when dry and sealed; caking risk rises sharply with humidity exposure.
- — Store sealed and off the floor with humidity control
- — Segregate from vitamins and organic materials to limit catalytic degradation
- — Keep clearly marked to prevent misidentification of visually similar salts
- — 25 kg bags with moisture barrier liner
- — Bulk bags for high-volume macro minerals
- — Sealed drums for hygroscopic salts
- — Protect from moisture ingress at every transfer
- — Avoid stacking pressure that compacts hygroscopic salts
- — Use dust extraction — mineral dust is abrasive and a respiratory hazard
- — Verify granulometry matches the carrier for mixing homogeneity
- — Calibrate micro-dosing equipment against actual bulk density
Procurement considerations
- —Verify heavy metals against destination limits at complete-feed level, not only per ingredient
- —Specify the mineral form and solubility, since bioavailability differs between salts
- —Require lot-specific assay rather than a typical-analysis sheet
- — GMP+ FSA / FAMI-QS feed safety scheme certification of the producing site
- — ISO/IEC 17025 accredited analysis for contractual and safety parameters
- — HACCP plan covering the specific material and process route
- — Codex Alimentarius Code of Practice on Good Animal Feeding
- — Destination-market maxima for undesirable substances in feed materials
Typical risks & common mistakes
- — Heavy-metal accumulation across multiple mineral inputs
- — Caking and dosing failure after humidity exposure
- — Substitution with a cheaper, less bioavailable salt form
- — Comparing mineral offers on product weight rather than on the element delivered
- — Testing finished feed only
Species & industry intelligence
Formulation stages, KPIs and the ingredient basket for poultry — broilers operations.
Formulation stages, KPIs and the ingredient basket for poultry — layers operations.
Formulation stages, KPIs and the ingredient basket for aquaculture operations.
Formulation stages, KPIs and the ingredient basket for dairy cattle operations.
Formulation stages, KPIs and the ingredient basket for swine operations.
Formulation stages, KPIs and the ingredient basket for beef cattle operations.
Related knowledge
Certificates of analysis, sampling, inspection, origin, traceability and import documentation.
Step-by-step buying guides and printable verification checklists.
Least-cost, inclusion and landed-cost tools for procurement planning.
Technical articles, market context and regulatory background.
Educational reference maintained by FeedMatch Group. We do not rank, recommend or endorse manufacturers; values are indicative industry references and never replace testing of the delivered lot.
Your next step, by buying intent
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What exactly am I buying?
How much, and at what landed cost?
Is this supplier and lot acceptable?
Frequently asked questions
What price drivers move zinc oxide and trace mineral premix?
Zinc oxide tracks the LME zinc price plus a conversion and purity premium, so the metal exchange, not the feed market, sets the floor. On top sit Chinese export policy and environmental inspections at smelting hubs, energy cost, freight, and the primary-versus-secondary zinc spread — secondary material is cheaper but carries the cadmium risk. For a finished premix, the swing factors are the selenium and organic-chelate lines, which are a small share of weight and a large share of cost, plus the carrier and the toll-blending fee. Re-tender when the LME moves more than 10%.
Straight zinc oxide or a finished trace mineral premix?
Buy straights only if you have accurate micro-weighing, validated mixer homogeneity and your own QC laboratory — at that scale straights are 10–20% cheaper per unit of element and give full control of source forms. Everyone else should buy a finished premix from a FAMI-QS or GMP+ certified blender: the price difference is small against the cost of one under-dosed or segregated batch, and the blender carries the homogeneity and assay liability.
Why is cadmium in zinc oxide the parameter that matters most?
Cadmium co-occurs with zinc in ore and concentrates in secondary, recycled zinc oxide. It is invisible to any visual or simple assay check, accumulates in kidney and liver tissue, and is capped by Directive 2002/32/EC — a failing lot means rejected feed, not just a rejected raw material. Contract cadmium at ≤ 5 mg/kg with an ISO/IEC 17025 certificate per lot, require a declaration of primary versus secondary zinc origin, and sample independently at load or discharge on any new supplier.
Is pharmacological zinc oxide for piglets still allowed?
No in the EU: therapeutic-dose zinc oxide for post-weaning diarrhoea was withdrawn in June 2022, and several other markets have followed or are phasing it out. Nutritional zinc remains legal up to the 120 mg/kg total-diet cap. Programmes replacing pharmacological ZnO combine hydroxy or organic zinc at nutritional levels with acidifiers, zinc-supporting gut-health additives, fibre strategy and tighter weaning management — confirm the current status in your destination market before contracting.
How do I verify a trace mineral premix on arrival?
Take a sealed retention sample at intake, assay the two or three highest-value elements — zinc, copper and selenium — against the declaration, and run a homogeneity check by sampling several points across a mixer batch, targeting a coefficient of variation of 5% or less. Check the certificate of analysis carries the batch number, the production site address, the source form per element and heavy-metal results. Then confirm the carrier, moisture and caking behaviour, because a premix that segregates delivers the wrong dose regardless of a perfect assay.
Does FeedMatch sell zinc oxide or trace mineral premix?
No. FeedMatch Group is supplier-neutral and holds no producer mandate. We help you write the element-by-element specification, verify certification and EU authorisation status, run the RFQ across qualified producers and blenders in several origins, normalise every offer to delivered cost per unit of element or per tonne of finished feed, arrange third-party sampling and assay, and can finance the shipment. The service is free for buyers.