A Comparative Study on the Rumen Microbial Population of Cattle and Swamp Buffalo Raised under Traditional Village Conditions in the Northeast of Thailand

  • Wanapat, M. (Department Animal Science, Faculty of Agriculture, Khon Kaen University) ;
  • Ngarmsang, A. (Department Animal Science, Faculty of Agriculture, Khon Kaen University) ;
  • Korkhuntot, S. (Department Animal Science, Faculty of Agriculture, Khon Kaen University) ;
  • Nontaso, N. (Department of Microbiology, Faculty of Science, Khon Kaen University) ;
  • Wachirapakorn, C. (Department Animal Science, Faculty of Agriculture, Khon Kaen University) ;
  • Beakes, G. (Department of Biological & Nutritional Sciences, University of Newcastle upon Tyne) ;
  • Rowlinson, P. (Department of Agriculture, University of Newcastle upon Tyne)
  • 투고 : 1999.07.02
  • 심사 : 1999.11.16
  • 발행 : 2000.07.01


A comparative study on rumen bacterial and protozoal population and fungal zoospores in cattle (Brahman$\times$Native) and swamp buffalo (Bubalus bubalis) was conducted. Forty animals, twenty of each, with same sex and similar age which were raised under similar condition in the Northeast of Thailand, were used. Rumen digesta were sampled immediately post slaughtering for total microscopic counts of bacteria, protozoa and fungal zoospores. It was found that total bacterial population were higher in swamp buffalo that those in cattle (1.6 vs $1.36{\times}10^{8}cells/ml$) having more population of cocci, rods and ovals. Lower rumen protozoal pupulation in swamp buffalo with lower numbers of Holotrichs and Entodiniomorphs were found as compared to those in cattle. Significant higher fungal zoospore counts were in swamp buffalo than those in cattle being 7.30 and $3.78{\times}10^6$, respectively. Study under electron microscope, revealed Anaeromyces sp. with acuminate apex were more predominant in the rumen of swamp buffalo. With these findings, cattle and swamp buffaloes showing differences in rumen bacterial, protozoal population and fungal zoospore counts, offer new additional information as why swamp buffaloes exhibit conditionally better than cattle especially during long dry season without green grass.

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