Isolation of Bacillus SP. as a Volatile Sulfur-Degrading Bacterium and Its Application to Reduce the Fecal Odor of Pig

Abstract

Fecal malodor is an acute environmental issue to be solved for the intensive animal agriculture in Japan. Among these substances volatile sulfur such as hydrogen sulfide (HS), methanethiol, and dimethyl sulfide, and dimethyl disulfide are the ones most strictly controlled in the Japanese national regulations. In this experiment, we have screened a range of standard strains of chemoheterotrophic bacteria and of the presently isolated soil bacteria for their capacity to decompose HS. We have demonstrated that Comamonas testosteroni JCM5832 T and our isolate Bacillus sp. had a potential to reduce malodor when applied to the pig feces.

Dietary Effect of Artificial Zeolite on Performance, Immunity, Faecal Microflora Concentration and Noxious Gas Emissions in Pigs

“…Pooled SE P farms not only adversely affects the health of animals and workers, but can also cause environmental problems such as nitrification and acidification of rain (Ferket et al, 2002;Le et al, 2005;Ushida et al, 2003). In the present study, AZ treatment led to a significant reduction in NH3, SO2 and H2S emissions relative to the control treatment (P<0.05) ( Table 6), which is consistent with the results reported by Chen et al (2005a).…”

Effects of Bacillus licheniformis and Bacillus subtilis complex on growth performance and faecal noxious gas emissions in growing‐finishing pigs

“…is a volatile sulphur-degrading bacterium that has been applied to reduce faecal H 2 S of pigs. 34 In the present study, we noted a tendency for a reduction in H 2 S emission with supplementation by B. licheniformis and B. subtilis complex, which may be due to the increased faecal Lactobacillus counts and improved utilization of sulfur-containing amino acids.…”

The effect of probiotic BioPlus 2B® on growth performance, dry matter and nitrogen digestibility and slurry noxious gas emission in growing pigs

“…Exposure to high levels of noxious gases such as volatile sulfurs, phenols, indoles, volatile fatty acids (VFA) and volatile amines in livestock facilities not only adversely effects the health of animals and workers, but can also cause environmental problems such as the nitrification and acidification of rain (Ferket et al 2002;Ushida et al 2003;Le et al 2005). Dietary supplementation with B. subtilis was found to reduce NH 3 emissions in poultry houses by improving the utilization of nitrogen (N) (Santoso et al, 1999).…”

“…In addition, supplementation of the diets of pigs with Bacillus spp. was found to have the potential to reduce malodor in pig feces (Ushida et al, 2003;Chen et al 2006). However, to date, few studies have been conducted regarding noxious gas emission from slurry produced by growing pigs fed diets supplemented with BioPlus 2B ® .…”