Total Gas and Methane Evaluation of Rejected Mungbean Meal (Vigna radiata) with Jackfruit Leaves Addition
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Indonesian Center for Animal Science Research and Development (ICARD)
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Protein protection on rejected mungbean meal (RM) using tannins derived from jackfruit leaves is aplicable methods. The purpose of this study was to evaluate total gas and rumen fermentation characteristics of rejected mungbean meal with jacfruit leaves (JL) addition. Methane production was also observed to determine the efficiency of RM as feed after JL addition. Treatments consisted of RM (rejected mungbean meal), RM + 0.7% JL and RM + 1.4% JL. Experimental design was a completely randomized design with three treatments and three replicates. Gas production were measured at 0, 2, 4, 6, 8, 10, and 24 h of incubation. Methane production were measured after 24 h incubation. Rumen fluid-buffer was taken after 24 h incubation and analysed for pH, NH3, total VFA, and protozoa population. Addition of either 0.7 and 1.4% JL significantly reduced the total gas production at 24 h incubation. RM with 0.7% JL addition reduced methane concentration (%), methane production (ml/IVOMD) and protozoa population (cell/ml). It is concluded that addition of jackfruit leaves reduced optimum total gas production, while addition of either 0.7 and 1.4% jackfruit leaves reduced methane production and protozoa population. The best dose of jackfruit leaves to protect rejected mungbean meal is 0.7%.
Keywords
Methane; Jackfruit Leaves; Rejected Mungbean Meal; Total Gas