FIELD: agriculture.
SUBSTANCE: feed additive, which is a mixture containing: 86-89 wt.% of hydroxy analogue of methionine and its oligomer, in which more than 99.95 wt.% is monomer, dimer and trimer, and the monomer: dimer: trimer ratio by weight is 77-80: 18.5-19.5 3-4; 9.2-13.5 wt.% of water, and less than 0.5 wt.% of ammonium sulphate and ammonium bisulphate. A method for processing a mixture containing a hydroxy analogue of methionine and its oligomer to provide a feed additive is also described.
EFFECT: reduction in viscosity of the product by removing salts, which can be processed without producing solid waste.
33 cl, 8 tbl, 2 dwg, 5 ex
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