Utilization of Bacillus circulans to Improve The Nutrient Quality of Rice Straw Biomass
Wahidin Teguh Sasongko (a), Nana Mulyana (a), Nariswari Fidara (b), Etyn Yunita (b), Teguh Wahyono (a*)

a) Center for Isotopes and Radiation Application, National
Nuclear Energy Agency of Indonesia
Jakarta 12440, Indonesia
*teguhwahyono[at]batan.go.id
b) Faculty of Science and Technology, Syarif Hidayatullah State Islamic University
Banten, 15419, Indonesia

Abstract

Rice straw was an agricultural byproduct that has potential to be used as forage for ruminant. Ammoniated is technology, commonly to improve the nutrient quality of rice straw. Adding microorganisms to improve the process of rice straw ammoniation could be applied. The aim of this study was to improve the quality of ammoniated rice straw by adding Bacillus circulans and to know the best concentration of Bacillus circulans in ammoniation process. Completely Randomized Design with four treatments (0% B. circulans; 0.075; 0.1 and 0.125% DM of rice straw) and four replications was applied in this study. Incubation process was for 21 days. Results showed that ammoniated rice straw with B. circulans had improve the quality of rice straw such as increased ammonia (NH3). Ammoniated rice straw with 0.1% B. circulans was the best treatment with increased organic matter (OM) and decreased Neutral Detergent Fibre (NDF). Added 0.1% B. circulans was also increased crude protein (CP) and ammonia (NH3). Rice straw ammoniated by adding 0.1% B. circulans could improve nutrient quality and fiber utilility of rice straw biomass.

Keywords: Ammoniation; Bacillus circulans; Nutrient quality; Rice straw

Topic: Material Science