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The function of proteinate chelated peptide mineral on poultry feed

2026-04-22

Proteinate/peptide-chelated minerals

are minerals chemically bound to peptides or amino acids (often called proteinate or peptide-chelate). In poultry feed they are used because they:

Improve bioavailability: the mineral is protected from forming insoluble complexes in the gut, so more is absorbed.
Improve bioavailability: uptake can occur via peptide/amino acid transporters as well as mineral channels, increasing intestinal uptake.
Reduce antagonisms: less interaction with phytate, fiber, or other minerals that can inhibit absorption.
Enhance performance: better growth rates, feed conversion, and muscle development at lower inclusion levels versus inorganic salts.
Improve health and immunity: support enzymatic functions, antioxidant systems (e.g., Zn, Cu, Se) and immune responses.
Improve eggshell and bone quality: important for Ca-associated processes and trace minerals (Mn, Zn, Cu).
Lower fecal mineral excretion and environmental load: more retained mineral reduces discharge.
Common examples: Zn-, Cu-, Mn-, Fe-, and Se-proteinates/peptide-chelates.

Notes/considerations:

Typically more expensive than inorganic sources, so cost–benefit should be evaluated.
Inclusion rates are often lower than for inorganic salts; follow supplier recommendations.
Over-supplementation still risks toxicity or imbalance despite higher bioavailability.