DL-Methionine

DL‑methionine is manufactured by industrial synthesis, typically:

• through chemical or combined chemical/biotechnological processes from petrochemical or biotechnological precursors
• supplied as crystalline powder or granules in feed grade quality
• with strictly controlled active content, moisture and impurities

Poultry

In poultry nutrition (broilers, layers, breeders), DL‑methionine:

• corrects the first limiting amino acid in corn–soy based formulations
• enables lower crude protein formulations while maintaining growth, feed conversion and egg production
• is used in broiler starter, grower and finisher feeds, as well as in grower and layer phases in laying hens, supporting consistent performance and egg quality (egg mass, shell quality in combination with other nutrients)

It is typically added via premixes or concentrates, with precise dosage according to methionine + cystine requirements.

Swine

In swine diets, DL‑methionine:

• complements the amino acid profile, especially in rations with high inclusion of cereals and by‑products with low methionine content
• is critical in early phases (starter piglets), when requirements for essential amino acids are high and digestibility must be optimal
• helps formulate reduced crude protein diets, which can lower digestive load and nitrogen excretion while maintaining average daily gain and feed efficiency

DL‑methionine is usually included in premixes for piglets, grower–finisher pigs and breeding stock, at levels adapted to production stage.

Dogs

In dog food, DL‑methionine:

• is used to finely adjust essential amino acid ratios in dry kibbles, wet diets and complementary products
• helps optimize utilization of proteins from both animal and plant sources, which is important in super‑premium and high‑protein formulations
• is applied in diets for puppies, adult and senior dogs at different levels, depending on the quality of base protein sources and the targeted nutritional profile

DL‑methionine is a standard component of many premixes for the pet food industry, dosed precisely via formulation software.

Cats

For cats, DL‑methionine is particularly important as it:

• helps secure adequate methionine intake in combination with other sulfur amino acids in dry and wet foods
• supports an optimal amino acid balance in formulations with high inclusion of meat, meat‑and‑bone meal or plant proteins
• is used in kitten, adult and senior cat diets, as well as in specialized formulations requiring tight control of the nutritional profile

Its high purity and good solubility ensure accurate homogenization in premixes for cat food.