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Selecting the Correct Methionine Source – A Key Index for Successful Pig Production

Published on: 03/18/2019
Author/s : Balachandar Jayaraman¹, John Htoo², and Girish Channarayapatna¹. ¹ Evonik (SEA) Pte. Ltd., Singapore, ² Evonik Nutrition & Care GmbH, Rodenbacher Chaussee 4, Hanau-Wolfgang, Germany.

Methionine (Met) is the third limiting amino acid (AA) in typical swine diets. Besides protein synthesis as the main role, Met plays an important role as a methyl donor for cellular metabolism and formation of co-enzyme S-adenosylmethionine (Bunchasak, 2009), and involved in immune function and a precursor for the synthesis of glutathione and taurine in animals (Li et al., 2007). The dietary requi...

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March 18, 2019

Dr John, reports consistent with information available in the literature. I think it is relevant to make it clear that the use of the D-isomer of amino acids depends on the presence of the specific D-amino acid oxidase. Therefore, the efficiency of the use of methionine D isomers by pigs is directly related to the presence of the enzyme D methionine oxidase. These considerations were made since in the text and in Figure 3, this specificity does not appear.

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Scott Webster
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