This research was done to study the ability of tannin degradation by various rumen fluid it was conducted with 3 treatment and 4 replication each (SI - S3). Observed parameters were 1) Total cont bacteria, 2) Tannin concentration and 3) Characterization of rumen microbes and tannin degradation activity. This research had been conducted from Sept 24^ 2007 - Oct 29^ 2007 in Animal Feed and Nutrit…