ISOLATION, ENUMERATION, AND CHARACTERISTICS OF PROTEOLYTIC RUMINAL BACTERIA

Author:

Fulghum Robert S.1,Moore W. E. C.1

Affiliation:

1. Departments of Biology, Biochemistry and Nutrition, and of Veterinary Science, Virginia Polytechnic Institute, Blacksburg, Virginia

Abstract

Fulghum, Robert S. (Virginia Polytechnic Institute, Blacksburg) and W. E. C. Moore . Isolation, enumeration, and characteristics of proteolytic ruminal bacteria. J. Bacteriol. 85: 808–815. 1963.—Colony counts of proteolytic ruminal bacteria in the order of 10 9 organisms per g of whole rumen contents, and total colony counts in the order of 2 to 3 × 10 9 organisms per g, were obtained from rumen contents of cattle fed a maintenance ration of hay and grain. The proteolytic counts averaged 38% of the total counts. An anaerobic, differential medium characterizing proteolytic colonies by clear zones in an opaque skim-milk suspension was utilized. Proteolytic isolates were assigned to the following taxa: Butyrivibrio sp., Succinivibrio sp., Selenomonas ruminantium var. lactilytica, Borrelia sp., Bacteroides sp., and selenomonadlike organisms similar to the B-385 group of Bryant.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference33 articles.

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