Effect of synchronizing the rate degradation of protein and organic matter of feed base on rice by product on fermentation characteristic and synthesis protein microbial

Abstract

Low dry matter intake on rice straw due to nitrogen content of rice straw is low, so it is not able to support the growth of rumen microbes. Supplementation and synchronizing the rate degradation of protein and organic matter in the rumen can increase microbial protein production. The objective of this research was to determine the effect of synchronizing the rate degradation protein and energy of feed base on rice by product on fermentation characteristic and synthesis protein microbial on in vitro condition. Dietary treatments contained 3 level of synchrony indeks (0.4; 0.5 and 0.6) that were derived from nutrient content and degradation parameters of feedstufs using nylon bag technique. This research was using randomized complete design. Synchronization index affected to the concentration of acetic acid (P = 0.007), propionic acid (P = 0.020), butyric acid (P = 0.029), CH4 (0.031) and ratio of C2: C3 (0.013). Improved synchronization index led to a decrease in acetic acid and CH4 and increase efficiency of microbial protein synthesis. This result indicated that the improvement of synchronization index can improve feed efficiency, reduce global warming