High-Quality Feed Grade Lysine

for Efficient Animal Nutrition

Reliable L-Lysine HCl & Lysine Sulfate Supply for Global Feed Manufacturers, Supporting Better Growth Performance, Feed Efficiency and Sustainable Animal Production.

Balanced nutrition
Stable supply
International standards
One-stop sourcing

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Challenges Faced by Feed Manufacturers

Grain-based diets are naturally deficient in lysine, which is the first limiting amino acid for pigs and the second limiting amino acid for poultry. Feed companies generally face the following challenges.

Amino Acid Imbalance
Soybean Meal Price Fluctuations
Inferior Quality Lysine
Low Production Performance
Unstable Supply

Amino Acid Imbalance

A deficiency of lysine in the basal diet of animals is a serious problem. Lysine is one of the essential amino acids for pigs and poultry. A lack of high-quality lysine can lead to malnutrition and slowed growth. A persistently high feed conversion ratio (FCR) also reduces the economic benefits of animal husbandry.
Soybean Meal Price Fluctuations

Traditional feed uses high-protein formulas, and soybean meal prices fluctuate wildly due to seasonal, environmental, and climatic factors. The high dosage of soybean meal further increases the cost per ton of feed. Excessive costs mean squeezed profit margins.
Inferior Quality Lysine

There are many lysine suppliers on the market, but the quality of many cannot be guaranteed. Feed suppliers buy it and find that the lysine is not pure enough, has poor flowability, and is easily decomposed and ineffective at high temperatures, resulting in poor performance when mixed into feed.
Low Production Performance

Insufficient lysine in the diet will slow the weight gain of pigs and poultry, and prolong the slaughter period. It will also reduce the reproductive performance of breeding poultry, and decrease the quality of meat and eggshells in meat products, ultimately affecting the profitability of the final product.
Unstable Supply

The price of feed-grade lysine is affected by market conditions. When prices surge, many factories and traders refuse to ship. Furthermore, inconsistent quality across batches among some vendors disrupts livestock production schedules.

Polifar - Your Best L-Lysine HCL Supplier

Optimizing Animal Nutrition with Precision Lysine Supplementation

Balanced Amino Acid Nutrition
Optimized Formula
Quality Supply Chain

Balanced Amino Acid Nutrition

Precisely supplementing nutrition, 98.5% lysine hcl or 70% lysine sulphate can effectively fill the lysine deficiency in the diet, making it a highly efficient amino acid nutritional supplement.

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Optimized Formula

Precisely supplementing nutrition, 98.5% lysine hcl or 70% lysine sulphate can effectively fill the lysine deficiency in the diet, making it a highly efficient amino acid nutritional supplement.
Consult immediately
Quality Supply Chain

The quality of market suppliers varies. Polifar is an industry expert with decades of experience in feed additives and food additives. It is well-known in the industry, has a good reputation, and has stable supply. There are many repeat customers, who not only recognize the product quality, but also are satisfied with Polifar’s long-term and stable high-quality after-sales service!
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Overview of L-LYSINE HCL

Feed Grade

L-Lysine Hydrochloride feed grade

L-lysine hydrochloride is a kind of amino acid, that can not be compounded in the animal body. It plays an important role in metabolism. it has the function of increasing the practical utilities of feed, improving the meat quality, and promoting the growth of animals. It is especially useful for rumen animals such as milk cattle, meat cattle, sheep, and so on. L-lysine HCl is a kind of good feed additive for ruminants.

How does POLIFAR purchase?

Manufacturers who cooperated for the first time, through the investigation "Supplier Questionnaire", and "Supplier Site Evaluation Form" for factory inspection, first delivery verification, and formal evaluation procedures, It is proved that the company’s requirements are met, and the "Qualified Supplier List" is formed after the approval of the department manager, and the approval takes effect.

How does POLIFAR serve customers?

POLIFAR has a strict assessment of the service department. When signing an export contract with a customer, the service department must provide services to the customer:
Before delivery: carefully check the customs clearance information required by the customer;
In delivery: Update production status to customers every week;
After delivery: update the shipping schedule to customers every week;
After customs clearance: resolve customer complaints.

98.5% L-Lysine HCL Advantages

Beyond Product Supply, We Provide Reliable Nutrition Solutions

98.5% High Purity & Stable and Efficient Addition

High-purity lysine with good flowability, a mainstream feed additive suitable for large-scale feed production.

Precisely Supplements Amino Acids & Optimizing Nutritional Balance

Scientifically adjusts the amino acid ratio in feed, improving animal nutrient absorption efficiency.

Promotes Animal Growth & Enhances Production Performance

Supports rapid animal growth, improving production efficiency and overall performance.

Improves Feed Efficiency & Reduces Farming Costs

Optimizes feed conversion efficiency, reduces protein resource waste, and achieves economical farming.

Improves Animal Health & Contributes to Sustainable Farming

Enhances animal health and stress resistance, improving the quality of end products.

How Much Does Lysine Cost

Characteristics of L Lysine Hydrochloride

Testing Item	Standard	Result
L-Lysine HCL (on dry basis)/%	≥98.5	98.8
L-Lysine (on dry basis)/%	≥78.8	79.2
Specific Rotation	+18.0℃~+21.5℃	+20.00℃
Loss on Drying/%	≤1.00	0.5
Residue on Ignition/%	≤0.30	0.2
Dust/%	≤0.30	0.2
Ammonium Salt/%	≤0.04	0.01
Heavy Metal(Pb)/%	≤0.0030	0.002
Arsenic(As)/%	≤0.0010	0.0002

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Structure of L Lysine Hydrochloride

The chemical name of Lysine is 2,6-diaminohexanoic acid. Lysine is a basic essential amino acid. Because the content of lysine in cereal food is very low, and it is easily destroyed and lacking during processing, it is called the first limiting amino acid.

l lysine hydrochloride is one of the essential amino acids for humans and mammals. The body cannot synthesize by itself and must be supplemented by food. Lysine is mainly found in animal foods and legumes. The content of lysine in cereals is very low.

l lysine hydrochloride has positive nutritional significance in promoting animal growth and development, enhancing immunity, anti-virus, promoting fat oxidation, relieving anxiety, etc.

It can also promote the absorption of certain nutrients, which can interact with some The synergistic effect of nutrients can better exert the physiological functions of various nutrients.

Application of L Lysine Hydrochloride

L-Lysine HCl is the most commonly used lysine formulation in the feed industry, primarily used in the feed industry, with smaller amounts used in the food and pharmaceutical fields.

L‑Lysine for Pigs

Rapid Weight Gain

L‑Lysine for Laying Hens & Broilers

Maintains Egg Production Rate

L‑Lysine for Aquaculture

High Protein & Anti-Stress

What Are Some Common Types of Lysine on The Market?

Comparison Items	Feed-grade L-Lysine HCl	Feed-grade L-Lysine Sulfate	Liquid Methionine / Liquid DL-Methionine
Product Type	Essential Amino Acid Supplement	Essential Amino Acid Supplements	Sulfur-containing essential amino acid supplements
Main Active Ingredients	L-Lysine Hydrochloride	L-Lysine Sulfate	Liquid methionine (usually DL-methionine or methionine solution)
Typical Content	L-Lysine Hydrochloride ≥98.5%; Available lysine approximately 78.8%-80%	Lysine sulfate approximately 70%-75%; available lysine approximately 55%	Liquid methionine typically contains ≥50% available methionine (depending on product type)
Main Nutritional Functions	Supplementing the first limiting amino acid, lysine, to improve protein utilization	Provides lysine, while also providing some sulfate and fermentation byproduct nutrients	Supplementing with methionine promotes protein synthesis, feather/hair growth, and metabolism
Main Animals Used	Suitable for pigs, poultry, aquatic animals, and ruminants	Suitable for pigs, poultry, and aquatic animals	Suitable for broilers, laying hens, pigs, aquaculture, and ruminants
Typical Application Scenarios	Corn-soybean meal diets, low-protein diets, and compound feeds for pigs and poultry	Cost-sensitive feed formulations, large-scale livestock and poultry feeds	High-protein, high-performance feeds, poultry diets, liquid additive systems
Most Common Application Areas	Feed for pigs, broilers, laying hens, and aquatic animals	Pig feed, poultry feed, economical formulations	Poultry feed, pig feed, aquaculture feed, liquid feeding systems
Core Advantages	① High purity ② High effective lysine content ③ Precise dosage ④ Good flowability, convenient for automated production	① Generally more competitive in price ② Lower unit cost ③ Provides sulfur ④ Suitable for large-scale feed production	① Liquid form allows for continuous addition ② Excellent mixing uniformity ③ Reduced dust ④ Suitable for automated liquid spraying systems
Nutritional Utilization Efficiency	★★★★★ High per-kilogram product provides more effective lysine	★★★★☆ Higher lysine content requires consideration of effective lysine ratio	★★★★★ High methionine absorption and utilization rate with stable absorption
Price Advantage	Higher purchase price per ton, but higher proportion of effective ingredients	Lower price per ton, significant cost control advantage	Continuous addition advantage after equipment matching
Value to Formulators	Precise adjustment of lysine levels to achieve low-protein formulations	Reduces formulation costs and improves economic efficiency	Balanced protein amino acid ratio, improving feed efficiency
Value to Feed Mills	Stable product, accurate measurement, and convenient production management	Reduces raw material costs and enhances market competitiveness	Reduces dust and improves automated production efficiency
Physical Form	White crystalline powder/granules	White to light brown powder	Yellow to brown transparent liquid
Storage Characteristics	Dry, moisture-proof, and highly stable	Moisture-proof and anti-caking	Pay attention to temperature, packaging sealing, and transportation conditions
Key Customer Concerns	Purity, lysine content, moisture, ash, particle size, flowability, solubility, heavy metals, microorganisms	Effective lysine content, moisture, sulfate content, impurities, flowability, and anti-caking ability	Methionine content, concentration, pH, moisture, stability, color, and impurity control
Suitable Customer Types	Pursuing stable quality Exporting feed companies Large feed groups	Suitable for large feed mills that prioritize cost control	Modern feed companies with liquid addition systems

Recommend Dosage of

L Lysine Hydrochloride

Recommended dosage:
Pigs weighing less than 10kg, corn 65%, soybean meal 30%, and lysine addition 0.50%;
Pigs weigh 10-20kg, corn 65%, soybean meal 30%, and lysine addition 0.40%;
Pigs weigh 25-50kg, corn 75%, and soybean meal 20%. The amount of lysine added is 0.35%;
The weight of pigs is 50-100kg, corn 80%, soybean meal 15%, and lysine addition amount is 0.20%;
For pregnant sows, 85% corn, 10% soybean meal, and 0.05% lysine;
Lactating sows, 85% corn, 10% soybean meal, 0.20% lysine.
Add 0.1-2.5% for broilers and 0.1 lard and soybean oil for laying hens.

Storage of

L Lysine Hydrochloride

Transportation and storage: Lightly load and unload, moisture-proof and sun-proof, and can't be transported with toxic and harmful substances.
Store in a dry, clean, cool place and sealed container. The shelf life is two years.

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FAQs

Are Lysine And L-Lysine The Same Amino Acid?

Yes. The biologically active form naturally utilized by animals is L‑Lysine. D‑Lysine has no biological activity and cannot be used by animals. In feed industry, lysine generally refers to L‑Lysine. Commercial feed‑grade L‑Lysine HCl 98.5% is the hydrochloride salt of L‑Lysine. “Lysine” is the short name for L‑Lysine.
Can Lysine Kill Viruses?

Feed‑grade lysine cannot kill viruses.
Lysine is an essential nutritional amino acid for animal growth. It is a nutrient rather than disinfectant or antiviral drug. It only meets nutritional requirements and cannot inactivate or kill viruses. Do not use it as antiviral agent.
What Are The Side Effects of Lysine?

Under proper formula dosage, lysine is safe with no side effects. Adverse effects come from over‑dosage and unbalanced amino‑acid profile:

1. Antagonism effect by inhibiting arginine absorption;
2. Reduced feed intake and retarded growth, especially in piglets;
3. Extreme overdose increases risk of rectal prolapse in swine;
4. Lysine has bitter taste; high inclusion depresses feed intake.

Note: Keep proper ratio with threonine, methionine and tryptophan. Avoid high single‑source lysine supplementation.
Lysine-Rich Feed Ingredients / Food
Animal‑origin raw materials contain higher lysine than cereals:
- High lysine: fish meal, soybean meal, full‑fat soybean, meat‑bone meal, whey powder, silkworm pupa meal
- Medium lysine: rapeseed meal, cottonseed meal, peanut meal
- Low lysine: corn, wheat, sorghum. Cereal‑based diets are usually lysine‑deficient, requiring supplemental synthetic L‑Lysine.
What Are The Symptoms of Lysine Deficiency?

Swine
Slow growth, poor FCR, rough hair coat, weight loss, reduced feed intake, low lean meat yield. Lactating sows produce insufficient milk with weak piglets.

Poultry
Slow weight gain in broilers; lower egg production and smaller egg size in layers; poor feather development, higher feather‑pecking risk; underweight pullets.
Where Can I Buy Lysine?

Feed‑grade L‑Lysine is mainly for industrial bulk purchase via feed‑additive suppliers and traders. You may contact Polifar supplier for specification, quotation and sample of feed‑grade L‑Lysine HCl 98.5%. Bulk orders are supported. Retail small‑quantity supply for individual users is unavailable.

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