Amino Acid Composition of Rumen Organisms

Abstract

Amino-acid analyses were made of the acid hydrolysate of 22 strains of rumen bacteria grown in pure culture. The organisms represent some of the predominant organisms found in the rumen when either concentrates or roughages are fed. The amlno-acid analyses expressed as g/100 g of total amino-acids showed very little variation over the entire range of organisms. This distribution and the amino-acld distribution of a preparation of protozoal protein showed good agreement with the results of previous reports. The amtno-acld composition of the bacterial protein presented to the host for digestion is relatively constant Irrespective of the composition of the diet.