What is L-Cysteine?
L-Cysteine is a semi-essential amino acid that can be used as a feed additive in animal nutrition. It plays a vital role in various metabolic processes and is sometimes added to animal diets to enhance their growth, health, and overall performance. Here's an introduction to L-Cysteine as a feed additive:

L-Cysteine serves several functions when used as a feed additive in animal nutrition:
1:Amino Acid Supplementation:L-Cysteine is one of the building blocks of proteins, and it's important for the synthesis of various proteins in the animal's body. When added to animal feed, it can help meet the amino acid requirements of the animal, promoting protein synthesis and overall growth.
2:Antioxidant:L-Cysteine is a precursor to the powerful antioxidant glutathione. By providing a source of cysteine in the diet, it can help animals combat oxidative stress and reduce the damage caused by free radicals.
3:Detoxification:L-Cysteine is involved in the detoxification of harmful substances in the body. It can help animals eliminate toxins more efficiently, which is particularly important in livestock production.
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Specific rotation [a]d 20 |
+8.3 degree to +9.5. |
+8.8 degree |
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Not less than 95.0% |
99.5% |
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Not more than 0.2% |
<0.2% |
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Ammonium(NH4) |
Not more than 0.02% |
<0.02% |
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Sulfate(SO4) |
Not more than 0.03% |
<0.03% |
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Not more than 10ppm |
<10ppm |
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Not more than 10ppm |
<10ppm |
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Arsenic(As2O3) |
Not more than 1ppm |
<1ppm |
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Not more than 0.5% |
<0.5% |
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Not more than 0.5% |
0.12% |
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Not more than 0.5% |
<0.5% |
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98.0 to 101.0% |
99.8% |
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4.5 to 5.5 |
5.1 |
L-Cysteine can be used as a feed additive in various animal diets, including those for poultry, swine, cattle, and aquaculture. It is often included in commercial feed formulations to improve the overall health and productivity of the animals.
Benefits:The addition of L-Cysteine to animal feed can offer several benefits:
1: Improved Growth:L-Cysteine is essential for protein synthesis, which is critical for growth and development in animals.
2: Antioxidant Protection:L-Cysteine can help protect animals from oxidative stress, reducing the risk of diseases and improving overall health.
3: Detoxification:L-Cysteine aids in detoxifying the body, making it easier for animals to process and eliminate harmful substances.
4: Better Feed Efficiency:By ensuring that animals can utilize dietary protein more efficiently, L-Cysteine can lead to improved feed conversion ratios.
5: Enhanced Immune Function:A healthy diet with L-Cysteine can bolster the animal's immune system, making it more resilient to infections.
Key Benefits of L-Cysteine for Dogs
1. Antioxidant Protection: L-Cysteine boosts glutathione levels, protecting cells from oxidative stress and free radical damage.
2. Healthy Skin and Coat
3. Respiratory Health: L-Cysteine thins mucus, aiding in respiratory issues like chronic bronchitis or kennel cough.
4. Liver Function and Detoxification
5. Immune Function: L-Cysteine enhances the immune system by reducing inflammation and supporting cell repair.
6. Inflammation Reduction: It helps alleviate joint and tissue inflammation, especially in arthritis or post-surgery recovery.
7. Recovery and Energy: L-Cysteine aids in tissue repair and energy restoration after illness or physical exertion.
8. Digestive Health
9. Reproductive Health: L-Cysteine supports healthy sperm and egg development, enhancing fertility in breeding dogs.

Where To Buy L-Cysteine Powder?
You can buy corn protein Powder at hjagrifeed.com. The company is an industry-leading manufacturer and distributor for supplements. hjagrifeed.com is not just a consumer brand. is exclusively dedicated to providing over 500 natural ingredients for various animal industries such as feedstuffs, poultry, swine, ruminants, aquaculture species, and agricultural fertilizer. Contact
Free sample available: L-Cysteine 10-30g free samples could be offered for your R&D trial. Qty: 1ton, Delivery method: FOB/CIF.
Quality and Purity: A reputable supplier ensures that their Biotin powder is of the highest quality and purity. They often use third-party testing and provide a Certificate of Analysis (COA) to guarantee the product's safety and efficacy.

L-Cysteine Powder Package
L-Cysteine for sale packaging plays a crucial role in preserving the product's freshness, quality, and shelf life. When looking for corn protein consider the following packaging features:
Packaged in multi-layer kraft paper bag with food grade PE inner bag, net 25kg/bag. (Other packaging types are available on request)


- All goods are manufactured in GMP standard facilities.
- All goods are released after inspection by our independent laboratory or third party.
- All goods are transported by professional freight companies.


For L-Cysteine there are different specifications for your choice, we can provide 10-30g of free samples, US warehouse in stock of 500kg of each month for the market of the global. certificate of analysis (COA), MSDS, specification sheet, pricing quotation is obtainable upon your request.
If you have any question or need any documents, welcome to contact us by e-mail: info@hjagrifeed.com
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