Wholesale DL-Methionine Manufacturer | Poultry Feed Ingredients

Table of contents

2 Manufacturing Process of DL-Methionine

3 Benefits of DL-Methionine in Poultry Feed

5 DL-Methionine Recommended Inclusion Rates in Animal Feed

6 DL-Methionine Safety in Animal Nutrition

Looking for a reliable DL-Methionine manufacturer? Discover high-quality DL-Methionine for poultry feed. Learn about its source, production, benefits, usage, and safety for optimal animal nutrition.

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DL-Methionine is an essential amino acid widely used in animal nutrition, especially for poultry feed formulations. As a key building block of protein, DL-Methionine plays a vital role in supporting growth, feather development, egg production, and overall metabolic health in birds. Because poultry cannot synthesize methionine internally, balanced feed formulations must include it.

Where DL-Methionine Source

DL-Methionine is produced through chemical synthesis, yielding a racemic mixture of D- and L-isomers. While only the L-isomer is biologically active, poultry can efficiently convert the D-form to L-form in their bodies. This makes synthetic DL-Methionine a practical and cost-effective ingredient for poultry feed formulations, especially for high-production environments like broiler farming and layer operations.

Manufacturing Process of DL-Methionine

Commercial DL-Methionine through chemical synthesis, typically involving the following steps:

1. Hydrothiolation Reaction — Acrylonitrile reacts with methyl mercaptan to form methionine precursor intermediates.

2. Hydrolysis and Racemization — Intermediates are hydrolyzed and racemized to obtain the DL-isomer mixture.

3. Crystallization and Purification — The final product is crystallized and purified to meet feed-grade quality standards.

4. Dryingand Packaging — DL-Methionine is dried and packaged in moisture-proof bags for bulk shipping.

DL-Methionine feed grade is a white crystalline powder, 98%. CAS number 59-51-8, dl methionine comes in 25 kg bags or drums. Greenagribio for customers dl-methionine feed grade price that meets global standards for livestock safety and nutrition.

Benefits of DL-Methionine in Poultry Feed

Promotes Growth: Supports muscle development and improves feed efficiency in broilers.

Enhances Egg Production: Essential for high egg-laying performance in layers.

Supports Feather Health: Methionine contributes to keratin synthesis, critical for feather strength and quality.

Boosts Immune Function: Strengthens cellular immunity and antioxidant defense mechanisms.

Improves Feed Conversion Ratio (FCR): Maximizes nutrient absorption and minimizes waste, optimizing feed costs.

In poultry farming, DL-Methionine is especially valuable for egg production. For example, laying hens typically require:

3.5–4% calcium

0.3–0.4% available phosphorus

0.2% sodium
Adequate methionine levels, usually ~0.35–0.45% of total diet

Balancing these components ensures optimum egg size, shell strength, and consistent laying rates.

Uses of DL-Methionine

DL-Methionine is an industry-standard additive in:

Poultry feed (broilers, layers, breeders)

Swine diets

Aquafeed formulations

Pet food supplements

Livestock premixes and concentrates

DL-Methionine Recommended Inclusion Rates in Animal Feed

Animal Species	Growth Stage / Production Goal	Recommended DL-Methionine Level (% of total diet)
Broiler Chickens	Starter (0–3 weeks)	0.50 – 0.55%
	Grower (3–6 weeks)	0.42 – 0.48%
	Finisher (6+ weeks)	0.38 – 0.42%
Laying Hens	Peak Egg Production	0.35 – 0.45%
Laying Hens	Maintenance	0.30 – 0.35%
Breeder Chickens	Breeding Period	0.35 – 0.40%
Swine (Piglets)	Starter (weaning to ~20 kg)	0.38 – 0.45%
Swine (Piglets)	Grower-Finisher (20–100 kg)	0.25 – 0.35%
Aquaculture	Fish (general)	0.50 – 0.70%
Aquaculture	Shrimp	0.60 – 0.75%
Pet Food	Dogs & Cats	0.20 – 0.40%

The specific depends on the species, feed ingredients, health status, and production target. Always consult a nutritionist for precision feed formulation.

DL-Methionine Safety in Animal Nutrition

DL-Methionine is classified as safe when used according to established feeding guidelines.

EFSA (European Food Safety Authority)

FDA (U.S. Food and Drug Administration)

FAMI-QS (European Feed Additive and Premixtures Quality System)

Over-supplementation should be avoided to maintain amino acid balance and prevent metabolic stress in animals. Recommended inclusion rates vary by species, growth stage, and nutritional goals — making professional feed formulation essential.

Whether you are a feed mill, distributor, or integrated poultry producer, sourcing high-purity DL-Methionine ensures consistent production performance and long-term profitability. Contact us for bulk DL-Methionine supply, technical data sheets, and custom feed formulation assistance!

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