K.K. Shah1*, S. Tripathi2, I. Tiwari2, J. Shrestha3, B. Modi4, N. Paudel5,6, B.D. Das7 1Institute of Agriculture and Animal Science, Gokuleshwor College, Tribhuvan University, Nepal 2Himalayan College of Agricultural Science and Technology, Purbanchal University, Kathmandu, Nepal 3Nep

T. Slavov Department of Morphology, Physiology and Nutrition, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 12 March 2017; accepted for publication 26 May 2017) Abstract. The proper knowledge on the variety of events occurring in the rumen