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Pakistan Journal of Nutrition

Year: 2009 | Volume: 8 | Issue: 10 | Page No.: 1636-1640
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Authors

Wizna

Hafil Abbas

Yose Rizal

Abdi Dharma

I. Putu Kompiang

Keywords

Research Article

Improving the Quality of Tapioca By-Products (Onggok) as Poultry Feed Through Fermentation by Bacillus amyloliquefaciens

Wizna, Hafil Abbas, Yose Rizal, Abdi Dharma and I. Putu Kompiang
An experiment was conducted to improve the nutrient content of tapioca by-products (onggok) through fermentation by using cellulolytic bacteria (Bacillus amyloliquefaciens) as inoculums. The experiment was determination of the optimum conditions (dosage of inoculums, fermentation length and temperature) for tapioca by-products (onggok) fermentation based on nutrient quality and quantity of these fermented products. The study was conducted in experimental methods, using the completely randomize design in factorial with 3 treatment were: 1) A factor (Dosage of inoculums: A1 = 2%, A2 = 6%, A3 = !0%), 2) B factor (Fermentation length: B1 = 3 days, B2 = 6 days, B3 = 9 days) and 3) C factor (Temperature: C1 = 30oC, C2 = 40oC, C3 = 50oC). Results of study showed that optimum conditions of the fermentation of tapioca by-products (onggok) was at 2% dosage of inoculums, 6 days of fermentation length and 40oC temperature. This conditions can decrease 32% of crude fiber and increase 360% of crude protein which made the nutritional value of the product based on dry-substance was 7.9% crude protein, 2.75% crude fat, 11.55% crude fiber, 0.26% calcium, 0.17% phosphor, 2190 Kcal/kg metabolic energy and 65.95% nitrogen retention.
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