Aim: Our objective was to estimate in-vitro gas production from dry jowar fodder added with different concentrations of exogenous fibrolytic enzymes (EFEs) like neutral cellulase and fungal xylanase. Materials and Methods:34 different samples of dry jowar fodder were prepared according to different concentrations of neutral cellulase, fungal xylanase and neutral cellulase + fungal xylanase (1:1). Sample not containing any enzymes was considered as the control group. These 34 samples were subjected to further in vitro gas production analysis.Results: Statistically, significantly higher (P<0.05) potential gas production was recorded for 0.7 % at 6 hr period, 0.7 % at 12 hr period, 0.7 %, 0.8 % at 18 hr period and 0.7 %, 0.8 % at 24 hr period in the samples treated with neutral cellulase. Significantly higher potential gas production was recorded for 0.5 %, 0.8 % at 6 hr period, 0.5 %, 0.6 %, 0.8 % at 12 hr period, 0.8 % at 18 hr period and 0.5 %, 0.6 %, 0.8 % at 24 hr period in the samples treated with fungal xylanase. Significantly higher potential gas production was recorded for 0.6 %, 0.6 %, 0.8 % at 6 hr period, 0.6 %, 0.8 % at 12 hr period, 0.6 %, 0.8 % at 18 hr period and 0.6 %, 0.8 % at 24 hr period in the samples treated with mixture of neutral cellulase + fungal xylanase (1:1). Conclusion:Addition of neutral cellulase and fungal xylanase into the samples of dry jowar fodder increased in vitro total potential gas production. EFEs increase substrate degradation and there by improve the nutritive value of dry jowar fodder.
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