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L-Lysine Sulfate
CAS No.
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Purity
Molecular Formula
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Synonyms
Table of Contents
Overview
L-Lysine Sulfate is a fermented feed-grade amino acid widely used as an economical lysine source in animal nutrition.
It provides essential L-lysine to support muscle protein deposition, feed conversion efficiency, and overall growth performance across poultry, swine, ruminants, and aquaculture.
Compared with L-Lysine HCl, lysine sulfate offers higher nutrient density, additional nitrogen-free extract, and better cost efficiency for feed mills and integrators.
Product Information
Product Name: L-Lysine Sulfate
Source: Microbial fermentation
Active Content (Dry Basis): ≥55% L-lysine
Form: Brown or light brown granular/powder
Function: Essential amino acid supplement for animal feed
L-Lysine Sulfate provides a stable and bioavailable lysine source, supporting protein synthesis and improving feed utilization efficiency.
It is particularly suitable for swine, poultry, and aquatic formulas that require precise amino acid balancing.
Technical Specifications
| Appearance | Brown or light brown powder |
| Assay (L-lysine, dry basis) | ≥55% (Result: 56.1%) |
| Loss on Drying | ≤4.0% (Result: 2.32%) |
| Residue on Ignition | ≤4.0% (Result: 1.26%) |
| Ammonium Salt | ≤1.0% (Result: 0.56%) |
| Heavy Metals (as Pb) | ≤0.003% (Pass) |
| Arsenic (As) | ≤0.0002% (Pass) |
| Granularity | 0.5–1.5 mm (Result: 1.12 mm) |
| pH (10 g/dL) | 3.0–6.0 (Result: 4.8) |
Quality Assurance
Our L-Lysine Sulfate is produced through advanced microbial fermentation under strict GMP and HACCP quality systems.
Each batch undergoes full QC testing for assay, purity, microbiology, contaminants, and physical properties.
Documents available:
- Certificate of Analysis (COA)
- Material Safety Data Sheet (MSDS)
- Non-GMO & Allergen Statement
- Veterinary / Feed Grade export documentation
Stable supply, consistent quality, and complete certification support ensure reliability for feed mills and integrators worldwide.
Applications & Dosage
Applications:
- Improves growth performance and feed conversion rate
- Supports muscle development and protein synthesis
- Used widely in poultry, swine, ruminants, and aquaculture feed
- Suitable for premix, concentrate, and complete feed formulations
Typical Dosage:
- Poultry: 0.2–0.5% of total feed
- Swine: 0.25–0.6% depending on growth stage
- Aquaculture: 0.3–0.8% based on species formula
- Ruminants: According to nutritionist recommendations
Note: Precise dosage should be adjusted according to diet protein level and nutritional programs.
FAQ
1. What is L-Lysine Sulfate used for in animal feed?
L-Lysine Sulfate is used as a cost-effective amino acid source to improve protein synthesis, muscle development, and feed conversion efficiency in poultry, swine, ruminants, and aquaculture.
2. What is the difference between L-Lysine Sulfate and L-Lysine HCl?
Both supply bioavailable L-lysine, but L-Lysine Sulfate contains additional carbohydrates and nutrients from fermentation, offering better cost efficiency for feed mills. L-Lysine HCl has higher purity but is more expensive.
3. Is L-Lysine Sulfate safe for long-term use in livestock diets?
Yes. L-Lysine Sulfate is widely recognized as safe for long-term use and is included in global feed formulations when dosed according to nutritionist recommendations.
4. How much L-Lysine Sulfate should be used in feed?
Typical dosage ranges:
-
Poultry: 0.2–0.5%
-
Swine: 0.25–0.6% depending on growth stage
-
Aquaculture: 0.3–0.8%
Actual dosage should follow amino-acid balancing requirements.
5. Does L-Lysine Sulfate improve growth performance?
Yes. Supplementing L-Lysine Sulfate helps optimize protein deposition and enhances feed efficiency, which directly supports better growth performance in poultry and swine.
6. Can L-Lysine Sulfate replace lysine HCl in feed?
In most poultry and swine formulas, L-Lysine Sulfate can partially or fully replace L-Lysine HCl when formulated correctly, providing a more economical amino acid source.
Q1. How can I request a quotation or sample?
You can click the “Send Inquiry” button on this page or email us directly at [email protected].
Samples are available for most products, and our sales team will reply within 24 hours with detailed pricing and documentation .
Q2. What is the minimum order quantity (MOQ)?
The MOQ is 0.5 kg for most products.
For laboratory evaluation or small trial batches, smaller quantities can be arranged depending on stock availability.
Q3. What certifications do your products comply with?
Our GMP-certified partners operate under ISO, CEP, and FSC standards.
Each batch is supplied with a full set of COA, MSDS, and export documents to ensure quality traceability.
Q4. How long does delivery take?
Usually 3–7 working days for available stock and 2–3 weeks for customized specifications or large orders.
Q5. Which payment methods do you accept?
We accept T/T, L/C, and other agreed terms depending on the order volume and region.
Q6. Can you provide contract manufacturing or custom formulation support?
Yes. We cooperate with multiple GMP facilities to offer custom synthesis, formulation, and registration support for specific markets.
Packaging Information
Standard packing: 25 kg fiber drum or 1 kg foil bag
Double PE inner liner for moisture protection
Custom packaging available on request
Storage & Stability
Store in a cool, dry environment away from direct light. Shelf life 24 months under recommended conditions.
Transportation
Shipped by air, sea, or express according to customer preference. Dangerous goods comply with IATA/IMDG standards if applicable.
Our company and partner facilities hold valid GMP and ISO certificates issued by national authorities, ensuring that every batch meets strict quality and traceability standards required for international veterinary API markets.
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