English 
 |
| 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/% ≥99.00
POLIFAR
293040
| CAS No.: | 59-51-8 | Other Names: | DL-2-Amino-4-(methylthio)butyric acid |
| Molecular formula: | C5H11NO2S | EINECS No.: | 200-432-1 |
| Place of Origin: | China | Type: | Feed grade amino acid |
| Efficacy: | promote growth | Brand Name: | Polifar |
| Model Number: | Feed additives | Appearance: | White powder |
| Shelf Life: | 2 years | MOQ: | 1000kg |
| Sample: | Free,≤500g |
DL-methionine is the world's first restricted amino acid additive in the feed industry. It is a sulfur-containing essential amino acid and a chemically synthesized racemic mixture (50% L-form + 50% D-form). Its core functions are to balance dietary amino acids, promote growth, enhance immunity, and protect the liver. Its cost-effectiveness is significantly higher than that of L-methionine.
DL-Methionine Feed Grade is approved for use in all animal species. Particularly used in monogastric, it ensures an adequate supply of sulfur amino acids, especially of the essential methionine. Additionally, diets for piglets and growing pigs can show a considerable deficiency in methionine, especially when formulated to achieve low nitrogen excretion for ecological reasons. Increasing the utilization of feed resources decreases the cost of feed. Such a deficiency can be conveniently compensated by using Feed Grade DL-Methionine.
* Metabolic Pathway: D-methionine is converted to L-methionine (active form) by racemic enzymes in the liver, participating in protein synthesis.
* Utilization Rate: The bioavailability of DL-methionine is approximately 80–90% of that of L-methionine, while its cost is only 60–70% of that of L-methionine.
* Protein Synthesis: An essential amino acid, balancing dietary amino acids, promoting growth, and improving feed conversion ratio.
* Methyl Donor: Participates in the synthesis of choline, creatine, and DNA/RNA, protecting the liver and preventing fatty liver.
* Sulfur-Containing Metabolism: Synthesizes cysteine and glutathione, providing strong antioxidant effects, boosting immunity, and reducing stress.
* Fur/Eggshell: Improves feather and coat quality; enhances eggshell strength and egg quality.
Dl- Methionine Powder Universal For All Species
* Poultry (Chicken/Duck/Goose): First limiting amino acid, essential supplementation in corn-soybean meal diets.
* Pigs (Piglets/Finishing Pigs/Sows): Balances the lysine/methionine ratio, promotes growth, and increases lean meat percentage.
* Ruminants (Cattle/Sheep): Better rumen-protected formulation, promotes lactation, increases milk protein, and improves wool quality.
* Aquaculture (Fish/Shrimp): Promotes growth, reduces stress, and improves survival rate.
* Specialty Animal Farming (Rabbit/Mink/Fox): Improves fur quality and enhances reproductive performance.
As a professional DL-methionine distributor, the Polifar team offers customized formulas for various stages of animal growth. Contact us for the best formula. For customers looking to purchase bulk DL-methionine, Polifar can supply common brands on the market such as Meihua, Fufeng, CUC, and NHU, and will provide the best procurement solutions. OEM/ODM support is available to meet diverse customer procurement needs.
* Slow Growth: Weight loss, decreased feed conversion rate, poor development.
* Metabolic Abnormalities: Weakened liver and kidney function, fatty liver, muscle atrophy.
* Poor Production Performance: Decreased egg production rate, decreased egg weight, thin eggshell; decreased milk production, poor milk quality.
* Health Problems: Rough feathers, feather pecking/vent pecking; low immunity, susceptibility to disease.
* Wasted costs, amino acid imbalance, growth inhibition.
* Increased burden on liver and kidneys, increased risk of fatty liver.
* Decreased feed intake, diarrhea, anti-nutritional effects.
| Type | DL-Methionine (99%) | L-Methionine (99%) | Calcium Hydroxymethionine (MHA-Ca, 84%) | Liquid Methionine (MHA-FA, 88%) |
| Active Ingredient | 50% L + 50% D | 100% L | 84% Methionine Equivalent | 88% Methionine Equivalent |
| Biopotency | 80–90% (vs L) | 100% | 70–80% | 75–85% |
| Price | Medium (highest cost-performance ratio) | 100% High (2–3 times DL) | Low | Low (Liquid, requires specialized equipment) |
| Stability | Excellent (high temperature resistant) | Superior | Good | General (Volatile) |
| Suitable Use Cases | Suitable for all species and all stages | Suitable for high-end young livestock / specialty breeding | Suitable for Ruminants and Aquatic Animals | Suitable for large feed mills and liquid additive systems |
