Abstract

In situ(nylon bag) technique was used to investigate the effects of BIOTECH -Cellulase fromTrichoderma reeseiRUT -C40 on rumen degradability of rice straw in the study. Three mature rumen cannulated steerswere used. Complete Randomized Design (CRD) was used to evaluate the effect of four treatments in steers. Dietary treatments were used in the study as; Untreated rice straw (UTRS); Urea and mola sses treated rice straw (5% urea + 5% molasses) (UMTRS); Urea, molasses and cellulase treated rice straw 5% urea + 5% molasses + 2.5% BIOTECH -Cellulase fromTrichoderma reeseiRUT -C40 (UMCTRS) and 2.5% BIOTECH -Cellulase treated rice straw (CTRS). All treatments had similar (P>0.05) degradation of DM and NDF of untreated and treated rice straw . The increasing degradability of the rice straw treated with BIOTECH -Cellulase as observed in both the UM CTRS and CTRS, incubated for 72h suggested that the enzyme can still improve the utilization of the feed such that longer in cubation would degrade rice straw significantly

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