Biogenic amines and gamma-amino butyric acid in silages: Formation, occurrence and influence on dry matter intake and ruminant production

摘要: The concentration of biogenic amines (mono-, di-and polyamines) in silage and in the rumen, body tissues and body fluids mainly depends on the crop at harvest, the ensiling process, the silage and the digestion in the animal. Both the synthesis and the chemical structure of mono-and diamines are well documented. The basis for their formation is proteolysis, a naturally occurring process during ensilage, comprising the enzymatic decarboxylation of amino acids by the action of plant proteases and peptidases and of …