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Comparative Study of the Urease in the Rumen Wall and Rumen Content

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Abstract

IN the course of the ruminohepatic nitrogen cycle1,2, or by supplementation in feeding3, a considerable amount of urea can enter the rumen. The ureolytic activity of the rumen content was investigated and found to be due to some species of ruminal micro-organisms. Attempts to obtain enzyme preparations free from bacteria for a more accurate study, however, were unsuccessful4. Further investigations revealed that the urease activity of the ruminal mucosa appeared to be too high to be simply explained by surface contamination by rumen contents5. This communication deals with a study of partially purified urease preparations obtained from ruminal bacteria, as compared with partially purified enzyme prepared from the rumen mucous membrane, and the origin of the latter enzyme is also discussed.

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Authors and Affiliations

  1. Veterinary Research Institute, Ministry of Agriculture, Cairo-Dokky, Egypt

    S. ABDEL RAHMAN

  2. Institute of Physiology, School of Veterinary Science, Hannover, Germany

    P. DECKER

Authors
  1. S. ABDEL RAHMAN
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  2. P. DECKER
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RAHMAN, S., DECKER, P. Comparative Study of the Urease in the Rumen Wall and Rumen Content. Nature 209, 618–619 (1966). https://doi.org/10.1038/209618b0

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