98.5% Feed Grade Additive L-Threonine Granule
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  • Quality Assurance


  • Package

    Phosphate: 25kg/bag, 50kg/bag, 1100kg/bag, 1200kg/bag, 1250kg/bag or as your request.
    Trace element: 25kg/bag, 50kg/bag, 1200kg/bag, 1350kg/bag or as your request.
    Amino acid:25kg/bag, 600kg/bag or as your request.
    Vitamin:1kg/bag, 25kg/bag, 25kg/drum ect.
    Protein: 25kg/bag, 50kg/bag, 600kg/bag, Unpackaged or as your request.
  • Delivery Time

    About 10-30days.
  • Modes of transport

    By air, by sea or by train.

  • Payment Term

    Pre-T/T OR LC at sight.
  • Packaging and storage

    Most pre-mixed packaging bags use three-in-one paper bags, which have the advantages of waterproof, light-proof, no leakage and not easy to damage. Generally 20-25 kg/bag. Since the premix contains a variety of active micro-components, the chance of their interaction will increase, so care should be taken to prevent moisture during storage.
  • Measurement and mixing

    For the measurement of micro-components, electronic scales should be used, accurate to 0.01 grams, and large amounts of raw materials can be used on scales. There are many kinds of mixers. Ordinary vertical mixers are prone to shortcomings such as automatic separation and slow discharge speed due to their slow feeding speed. It is best to use a horizontal double ribbon mixer or a cone mixer.
  • Amino acid addition problem

    Many experiments have confirmed that adding rumen bypass methionine and lysine can increase milk production and economic benefits. This can be added by dairy farms according to specific conditions.
  • Stability of trace components

    Under normal storage and use conditions, the physical and chemical properties of trace elements, vitamins and other components in the premix are stable, but when the moisture content is high, the stability is poor and the loss rate is large. Strictly control the water content of the premix, preferably not more than 5%.
  • Production technology

    Prevent and reduce the loss of active ingredients and ensure the stability and effectiveness of the premix. Choose raw materials with good stability. In terms of vitamins, it is better to choose stabilized raw materials; when using sulfate trace elements, the crystal water should be minimized, or oxides should be used instead, organic trace elements can also be selected; control choline chloride The amount of alkali, because of its strong water absorption, has a destructive effect on vitamins; vitamins should be added in excess, especially when the storage time exceeds 3 months; good quality antioxidants, anti-caking agents, and anti-fungal agents should be added.


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98.5% Feed Grade Additive L-Threonine Granule

5 0 Reviews
Color: White or Light yellow 
Material: corn 
Sales Models: wholesale 
Min Order: 20mt 
Shelf Life: two years when properly stored 
Packing: net 25kg/50kg/600kg in Plastic woven bags with PE lining 
Storage: stockpiled at the ventilated place, avoiding rain, moisture and insolation. Please handle with care to prevent bag damage, store away from toxic substances.
  • Assay/%≥98.50


  • 292249

CAS No.: 72-19-5 Other Names: L-Threonine feed grade
Molecular formula: C4H9NO3 EINECS No.: 200-774-1
Place of Origin: China Type: Feed grade amino acid
Efficacy: promote growth Brand Name: Polifar
Model Number: Feed additives Appearance: White powder or granule
Shelf Life: 2 years MOQ: 1000kg
Sample: Free,≤500g

Product performance:

As amino acid for forge, threonine is widely added in the forage for newborn pig, covering pig, poultry, shrimp, eel and so. It can:

1. Keep the balance of amino acids in the forage and stimulate the growth of the animals;

2. Improve the meat quality;

3. Increase the nutritive value of forage raw materials which have low amino acid digestibility;

4. Apply to the production low-protein forage;

5. Cut down the cost of raw materials for forage;

6. Decrease the nitrogen content in the excrement and urine of animals so that the release of ammonia is slowed and the ammonia concentration is kept low in animal shed.            Meihua, Eppen, FUFENG, JINXIANG

feed additives L-Threonine

Testing   Item






Specific Rotation

-26.7° ~ -29.0 °


Loss   on Drying/%



Residue   on Ignition/%



Heavy   Metal(Pb)/%mg/kg






Product Storage:Stockpiled at the ventilated place, avoiding rain, moisture and insolation. Please handle with care to prevent bag damage, store away from toxic substances.
Product Packaging:Net 25kg in Plastic woven bags with PE lining
Loading:20MT/20FCL'; 16MT/20FCL' with pallets
Delivery:About 1 - 2 week

Q1: What is feed grade L-threonine?

A1: Feed grade L-threonine is a specific form of the essential amino acid L-threonine that is produced and formulated for use as an additive in animal feed. L-threonine is categorized as an essential amino acid because animals cannot synthesize it in sufficient quantities and must obtain it from their diet. Feed grade L-threonine is typically manufactured through fermentation or chemical synthesis processes to ensure its purity and quality meet the requirements for animal nutrition. It is commonly used in animal feed formulations to supplement and balance the amino acid profile, particularly in diets where the natural sources of L-threonine may be inadequate to meet the animals' requirements for growth, development, and overall health.

Q2: What is the difference between feed grade L-threonine and L-arginine?

A2: Feed grade L-threonine and L-arginine are both essential amino acids used in animal nutrition, but they serve different functions in the body and have distinct characteristics. L-threonine is primarily involved in protein synthesis, immune function, and intestinal health, while L-arginine plays roles in protein metabolism, immune response, hormone secretion, and blood vessel dilation. Additionally, L-threonine has a hydroxyl group (-OH) attached to its side chain, whereas L-arginine contains a guanidino group (-NH-C(NH2)(NH2)) in its side chain. While both amino acids are important for animal health and growth, they are sourced differently and have specific applications in animal feed formulations.

Polifar participates in Feed Additives Exhibition

Product Inquiry
If you need food ingredients, feed additives, or feed premix, please feel free to contact us. We have an excellent technical team, which can be designed according to customers' requirements.
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