Utilization of Biogas Liquid Waste For Starter In The Fermentation of Rice Husk As A Potential Feed For Poultry

The research was aimed to evaluate the effect of biogas liquid waste as a fermentation starter of rice husk on the nutrient content, gross energy and bulk density. A laboratory experiment was conducted in a Completely Randomized Design (CRD) with a factorial pattern (6 x 5) using different levels of biogas waste liquid, namely P0-treatment (0% negative control), P0+ (Cellulomonas sp as positive control), P1 (5%), P2 (10%), P3 (15%), P4 (20%) ml/g. The experiment also included various incubation time, i.e. T0 (0 day as control group), T1 (7 days), T2 (14 days), T3 (21 days) and T4(28 days). The variables measured was the content of ash, crude protein, crude fiber, crude fat, gross energy and bulk density. Data were subject to analysis of variance (Anova) and CRD Factorial pattern, as well as Duncan's Multiple Range Test forany significant difference. The results revealed that the level of biogas liquid waste and the incubation time significantly affected the nutrient content, gross energy and bulk density of rice husk. The interaction between the level of liquid waste biogas and incubation time was highly significant on the nutrient content, gross energy and bulk density. It can be concluded that the liquid waste of biogas as a starter in the fermentation of rice husk could increase the content of inorganic material, crude protein, crude fat, and gross energy, and lower content of crude fiber and total density of rice husk.