|Abstract: ||Agricultural and indusrial waste such as banana skin and stem; tofu
residue are kinds of wastes that haven’t used yet and potential to pollute the
environment because of the big amount so it’s necessary to be processed into
ruminants feed. Fermentation with tempeh inoculum needs to improve the feed
nutrition and especially the digestibility. The objective of the research is to
determine appropriate tempeh inoculum concentration and fermentation time to
give the highest nutrition and in vitro digestibility of feed.
Research was designed by Factorial Randomized Block Design consist of
2 factors which are 3 levels of tempeh inoculum concentration (K): 0,4; 0,7; 1%
and 3 levels of fermentation time : 24, 48 and 72 hours. The result data were
analyzed by Factorial Analysis of Variance. Because of quantitative treatment, so
polynomial orthogonal response test was conducted by calculating sums of square
each factor to linear and quadratic tendency. Analysis continued by regression
(linear and quadratic) (Yitnosumarto, 1993). Best treatment was obtained by using
effective index (De Garmo et al.,1984) and then compared with control treatment
using T test 1%.
Results of these research show that the addition of tempeh inoculum and
fermentation time give significant effect to all feed parameters: dry matters,
organic matters, protein, N-Amino, lipid, crude fiber and in vitro digestibility.
Interaction of both treatments gives very significant effect (α=0,01) to dry matters,
organic matters , protein, N-Amino and in vitro digestibility of organic matters
(IVDOM) and doesn’t give significant effect to pH and in vitro digestibility of dry
matters.(IVDDM) Best treatment which was obtained was 1% concentration of
inoculum tempeh and 48 hours fermentation. Best treatment of fermented feed has
higher protein (23,036%), N-Amino (0,728%), crude fiber (18,448%), pH (6,177),
IVDDM (79,591%) and IVDOM (76,811%) than control (without fermentation).
But it has dry matters (92,855%) , organic matters (96,605%) and lipid content
(7,966%) lower than control treatment feed.|