The Use of Various Substrate Microbial Bamboo Stems for Rice Straw Fermentation and its effect on digestibility and fermentation product of Beef Cattle Ration

Chabib B.H,Muhamad Bata,Sri Rahayu

doi:10.20884/1.read.2020.1.1.2386

Chabib B.H, Muhamad Bata + Show 1 more

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https://doi.org/10.20884/1.read.2020.1.1.2386

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Abstract

This experiment investigated various substrate growth of bamboo stems microbes (BSM) in rice straw fermentation and its effect on dry matter digestibility (DMD), organic matter digestibility (OMD), NH3-N and VFA concentration. Materials were rumen fluid of beef cattle from the slaughterhouse. Basal diets consisted of rice straw and concentrate with ratio of 40 : 60 (% dry matter) were administered to five treatments namely P0 = untreated rice straw (control), P1 = Ammoniated rice straw, fermented rice straw using microbial bamboo stems grown on ammoniated rice straw (P2), rice bran (P3) and cassava waste (P4). The experiment used in vitro method was designed with Completely Randomized Design and the data were analyzed variance. The results showed that the treatment had no significant effect on dry matter digestibility (DMD), organic matter digestibility (OMD), NH3-N and VFA concentration (P>0,05). The fermentation process of microbial bamboo stems in rice straw with a level of 10% with different substrate did not able to increase the digestibility and products fermentation, but there tends that the rice bran and substrates can increase DMD and N-NH3 concentration

Highlights

Indonesia is the third largest rice-producing country and rice straw after China and India (Sarnklong et al, 2010), and rice straw became the main feed of beef cattle
Digestibility (DMD and OMD) The highest dry matter digestibility (DMD) and organic matter digestibility (OMD) values were found on P1, namely 33,87 ± 0,72% dan 40,27± 0.72%, while the lowest was P3 29,51 ± 1,95% and 32,61 ± 2.23% (Table 1 and 2)
Analysis of variances informed that the use of inoculum from bamboo stems microbes grown on various substrates for rice straw fermentation had no significant effect (P> 0.05) on DMD and KBO

Summary

Introduction

Indonesia is the third largest rice-producing country and rice straw after China and India (Sarnklong et al, 2010), and rice straw became the main feed of beef cattle. The obstacles to utilizing rice straw as feed include the high level of lignification and silicification, the slow and limited ruminal degradation of the carbohydrates, and the low content of nitrogen (Van Soest, 2006). This resulted in , rice straw is poorly fermented, bearing low rates of disappearance in the rumen and low rates of passage through the rumen, reducing feed intake (Sarnklong et al, 2010). Processing technology is needed to improve the digestibility of rice straw and fermentation using natural inoculums from bamboo stems as an alternative solution

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