Cited by 39Ruminant Nutrition and Digestive PhysiologyAnaerobic Digestion and Biogas ProductionAnimal Nutrition and Physiology

ECOLOGICAL TREATISE ON THE RUMEN FERMENTATION

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MINATO, HAJIME, ENDO, AKIRA, OOTOMO, YASUSHI, UEMURA, TEIJIRO·1966·The Journal of General and Applied Microbiology

Abstract

The biochemical features of bacterial population in the gauze filtrate fraction or other respective bacterial fractions gradually eluted from the digesta solids were examined for their activities towards cellulose, starch or succinate. The rumen contents of sheep fed hay and concentrates was squeezed through a layer of two sheets of gauze to obtain the digesta solids. The results obtained were as follows:1) The distribution of Veillonella alcalescens in each fraction was examined on the basis of succinate decarboxylation. Values of QCO2 of G and W1 fractions exceeded those of W2 and T fractions and the pattern of distribution of QCO2 in each fraction was quite similar with pattern of the viable count of this species.2) Gauze filtrate fraction was superior to the other fractions in the production of volatile fatty acid from cellulose or starch. Furthermore, T fraction showed considerable production of volatile fatty acids from starch, and in this respect exceeded W2 fraction although less in cell density.3) G fraction was least active in cellulolytic activity compared to the other fractions. The amylolytic activity of G fraction was greater than the other fractions, followed by T fraction with a slight differences. Moreover, G fraction was most active in the proteolytic activity compared to the other fractions.4) An attempt was made to adsorb the cells contained in G and T fractions on starch or cellulose. When the bacteria in G fraction were treated with starch, greater decrease in cell amount was observed than in T fraction. While, only a slight difference was indicated between both fractions at the treatment with cellulose. In the specific amylolytic activity of G fraction a significant decrease was well observed with the treatment with starch as compared with T fraction.The above results were discussed with relation to those of distribution of the rumen bacteria in each bacterial fraction as previously reported.

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  • The biofilm phenotype enables effective hydrolysis of plant material within the rumen by concentrating digestive enzymes within the EPS in proximity to the substrate.

    “The biofilm phenotype has many advantages, including the concentration of digestive enzymes within the EPS in proximity to the substrate, an arrangement that enables effective hydrolysis of plant material within the rumen (Minato et al., 1966; Wolin et al., 1997; Michalet-Doreau et al., 2001; Leng, 2014).”

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Research works printed but not linked: 11

  1. H. MINATO, A. ENDO, M. HIGUCHI, Y. OOTOMO and T. UEMURA: J. Gen. Appl. Microbiol., 12, 39 (1966).
  2. A. K. SIJPESTEIJN and S. R. ELSDEN: Biochem. J., 52, 41 (1952).
  3. M. SOMOGYI : J. Biol. Chem., 195, 20 (1952).
  4. FOLIN and V. CIOCALTEU: J. Biol. Chem., 73, 627 (1927).
  5. M. RoGosA: J. Bacteriol., 72, 533 (1956).
  6. M. P. BRYANT and L. A. BURKEY: J. Dairy Sci., 36, 218 (1953).
  7. M. HIGUCHI, C. FURUSAKA and T. UEMURA : J. Agr. Chem. Soc. Japan, 36, 455 (1962), in Japanese.
  8. F. KUMENO and M. KANDATSU: J. Arg. Chem. Soc. Japan, 33, 867 (1959), in Japanese.
  9. G. J. THOMAS: J. Agr. Sci., 54, 360 (1960).
  10. A. C. I. WARNER: J. Gen. Microbiol., 28, 119 (1962).
  11. R. E. HUNGATE: Bacteriol. Proc., p. 41 (1962).

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Authors
MINATO, H., ENDO, A., OOTOMO, Y., & UEMURA, T.
Affiliations
National Institute of Animal Health (JP)
Venue
The Journal of General and Applied Microbiology
Published
1966
Volume
12
Issue
1
Pages
53-69
ISSN
  • 0022-1260 (ISSN-L)
  • 1349-8037
OpenAlex
W2018569540
Cited by
39
References
2
Citations by year
2022: 1 · 2019: 2 · 2018: 2 · 2017: 1 · 2015: 1 · 2013: 1
FWCI
1.09
Type
journal article
Language
en
Open access
Locations
The Journal of General and Applied Microbiology (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
rumen fermentation, rumen bacteria, Veillonella alcalescens, volatile fatty acid production, cellulolytic activity, amylolytic activity, proteolytic activity, starch adsorption, cellulose adsorption

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