Role of Megasphaera elsdenii in the Fermentation of dl -[2- 13 C]lactate in the Rumen of Dairy Cattle-Reference-Cited by-同舟云学术

Role of Megasphaera elsdenii in the Fermentation of dl -[2- 13 C]lactate in the Rumen of Dairy Cattle

Published:1981-10 Issue:4 Volume:42 Page:649-655
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Counotte G. H. M.¹,Prins R. A.¹,Janssen R. H. A. M.²,deBie M. J. A.²

Affiliation:

1. Laboratory of Animal Nutrition, Zootechnical Department, State University of Utrecht, Utrecht, The Netherlands

2. Laboratory of Organic Chemistry, State University of Utrecht, Utrecht, The Netherlands

Abstract

Since Megasphaera elsdenii ferments a variable part of dl -lactate to butyrate, measurement of the percentage of dl -lactate fermented to propionate via the acrylate pathway in rumen contents will underestimate the participation of M. elsdenii in the dl -lactate fermentation. The percentage of dl -[2- 13 C]lactate fermented via the acrylate pathway and the percentage of dl -lactate fermented to butyrate can be measured with 13 C-FT (Fourier transform)-nuclear magnetic resonance. On the average, the contribution of M. elsdenii to dl -lactate fermentation in the rumen of dairy cattle was found to be 74% (standard deviation, 13%), but differed with animal or diet. After feeding a cow readily fermentable carbohydrates, the contribution of M. elsdenii to the fermentation of dl -lactate increased as a consequence of catabolite repression in other dl -lactate-fermenting bacteria.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/aem.42.4.649-655.1981

Reference16 articles.

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2. Bergmeyer H. U. (ed.). 1970. Methoden der Enzymatischen Analyse 2nd ed. p. 1425 and 1450. Verlag Chemie Weinheim.

3. Buchanan R. E. and N. E. Gibbons (ed.). 1974. Bergey's manual of determinative bacteriology 8th ed. The Williams & Wilkins Co. Baltimore.

4. Kinetic parameters of lactate dehydrogenase of some rumen bacterial species, the anaerobic rumen ciliate Isotricha prostoma and mixed rumen microorganisms. Antonie van Leeuwenhoek J;Counotte G. H. M.;Microbiol. Serol.,1980

5. Nutritional characteristics of Megasphaera elsdenii;Forsberg C. W.;Can. J. Microbiol.,1978

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