Nutritive Value, Digestibility and Gas Production of Fermented Sugar Palm Peel with Pineapple Peel
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Abstract
An experiment was conducted to examine the nutritive value, digestibility and gas production of fermented sugar palm peel with pineapple peel. The treatment was conducted as a 3×2 factorial in a completely randomized design (CRD). The experiment consisted of six treatment combinations; sugar palm peel to pineapple peel ratios (2:1, 1:1 and 1:2 by weight) and fermentation times (day-14 and day-21). All treatment combinations were fermented under anaerobic condition in airtight plastic pouches. The result showed that ether extract content of fermented sugar palm peel with pineapple peel in 2:1 ratio at day-14 was significantly higher than other treatment combinations (P<0.05). Conversely, hemicellulose, acid detergent fiber (ADF) and acid detergent lignin (ADL) contents of fermented sugar palm peel with pineapple peel in 1:2 ratio at day-14 were significantly lower than other treatment combinations (P<0.05). The pH values were significantly different among treatment combinations (P<0.05). Overall, fermented sugar palm peel with pineapple peel at day-14 had lower pH value than those at day-21. In vitro dry matter digestibility of fermented sugar palm peel with pineapple peel in 1:2 ratio at day-14 were significantly higher than other treatment combinations (P<0.05). On the other hand, the volume of gas production was significantly different at 12 hr, and was not significantly different among treatment combinations (P>0.05) thereafter (24 hr, 48 hr and 72 hr). Fermented sugar palm peel with pineapple peel in 2:1 ratio at day-21 recorded the highest gas volume (45.16 ml). Results of this study suggested that the fermented sugar palm peel with pineapple peel in 1:2 ratio at day-14 produced a lower fiber content and higher digestibility silage, making it a suitable silage for ruminant animal since high fiber content had adverse effect on the nutrients digestibility.
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