Effect Of Condensed Tannins On In Vitro Rumen Fermentation Parameters

The experiment was conducted to evaluate the role and condensed tannins (CT) in selected leucaena species [L.leucocephala-hybrid Bahru; LLB, L.leucocephala-Local; LLL] using in vitro study. Result of the experiment showed effect of CT on in vitro gas production, methane, PH, apparent DM degradability, nitrogen (N) degradability. Extraction of Leucaena condensed tannin on in vitro fermentation studies, a preliminary understanding of the condensed tannin on the role of in vitro fermentation. The main research results are as follows:1. The study showed that the gas production (60 mL/g DM) and methane production (14.57 mL/g DM) value for with leucaena were significantly lower than of without leucaena, and the dry matter digestibility (35.67%), pH (7.09) and nitrogen digestibility (49.67%) were no significantly higher than of without leucaena,2. The study showed that the gas production (50 mL/g DM) and methane production (7.55 mL/g DM) value for feeding with CT from LLL were significantly lower than without CT, pH (7.14) were no significantly higher than without CT, and the dry matter digestibility (33.67%) and nitrogen digestibility (45%) were no significantly lower than of without CT. While the result showed that the gas production (52.33 mL/g DM) and methane production (8.70 mL/g DM) value for feeding with CT from LLB were significantly lower than without CT, pH (7.16) were no significantly higher than without CT, and the dry matter digestibility (34.33%) and nitrogen digestibility (47%) were no significantly lower than of without CT.3. The study showed that the gas production (62.33 mL/g DM) value for feeding with leucaena with CT from LLL were significantly higher than feeding without leucaena and without CT, methane production (12.20 mL/g DM) the dry matter digestibility (24.33%) and nitrogen digestibility (41.67%) with CT from LLL is no significantly lowed than feeding without leucaena and without CT;while that the gas production (57.33 mL/g DM) value for feeding with leucaena with CT from LLB were significantly higher than feeding without leucaena and without CT, methane production (10.94 mL/g DM) the dry matter digestibility (35.67%) and nitrogen digestibility (41.67%) with CT from LLB is no significantly lowed than feeding without leucaena and without CT.