57.142

METAL AMINO ACID CHELATE – The product resulting from the reaction of a metal ion from a soluble metal salt with amino acids. It has a mole ratio with 1 mole of metal to 1-3 (preferably 2) moles of amino acid to form coordinate covalent bonds. The average weight of the amino acids must be approximately 150 daltons and the resulting molecular weight of the chelate must not exceed 800 daltons. When used as a commercial feed ingredient it must be declared as a specific metal amino acid chelate. (Adopted 1988)
-ALBION METAL AMINO ACID CHELATES
-NUPLEX METAL AMINO ACID CHELATES

57.150

METAL AMINO ACID COMPLEX – The product resulting from complexing of a soluble salt (such as potassium or manganese) with an amino acid(s). Minimum metal content must be declared. When used as a commercial feed ingredient, it must be declared as a specific metal amino complex: i.e., potassium amino acid complex; copper amino acid complex; zinc amino acid complex; iron amino acid complex; cobalt amino acid complex; calcium amino acid complex; manganese amino acid complex. (Adopted 1990)
-ZINPRO Availa products

57.151

METAL (specific amino acid) COMPLEX – The product resulting from complexing a soluble metal salt with a specific amino acid. Minimum metal content must be declared. When used as a commercial feed ingredient it must be declared as a specific metal, specific amino complex: i.e., copper lysine; zinc lysine; ferric methionine; manganese methionine and zinc methionine. (Adopted 1992)
-NUPLEX Potassium Complex
-ZINPRO – 4-plex products, Global Animal
-ALBION Potassium Complex

57.23

METAL PROTEINATE – The product resulting from the chelation of a soluble salt with amino acids and/or partially hydrolyzed protein. It must be declared as an ingredient as the specific metal proteinate: i.e., copper proteinate; zinc proteinate; magnesium proteinate; iron proteinate; cobalt proteinate; manganese proteinate; or calcium proteinate.
(Amended 1987).
-ALLTECH, BALCHEM, AND TROUW

57.29

METAL POLYSACCHARIDE COMPLEX – The product resulting from the complexing of a soluble salt with a polysaccharide solution declared as an ingredient as the specific metal complex: i.e., copper polysaccharide complex; zinc polysaccharide complex; iron polysaccharide complex; cobalt polysaccharide complex; and manganese polysaccharide complex. (Adopted 1973)
-QUALITEC

57.28

METAL METHIONINE HYDROXY ANALOGUE CHELATE is the product resulting from the reaction of a metal salt with
2-hydroxy-4-methylthiobutanoic acid (HMTBa), having a chelated molar ratio of one mole of metal to two moles of HMTBa to form coordinate covalent bonds. This ingredient is intended to be used as a source of trace minerals. The specific metal chelate must be declared as a metal methionine bydroxyl analogue chelate.
-NOVUS

57.

METAL PROPIONATE – Product resulting from the reaction of a metal salt with propionic acid. The metal propionates are prepared with an excess of propionic acid, at an appropriate stoichometric ratio. It must be declared as an ingredient of the specific metal propionate.
-KEMIN