College of Resources and Environment Sciences, China Agriculture University, Beijing 100094, China.
J Environ Sci (China). 2006;18(1):201-6.
Manure odor, which results in the increasing complaints and lawsuits, has increased the tension among swine producers and surrounding residents. The effects of Lactobacillus plantarum and different rates of soluble carbohydrates additions to swine manure on odorous compounds, chemical compounds and indigenous flora were evaluated. Additions were calculated on dried manure weight basis. Variables monitored included ammonia (NH3), hydrogen sulfide (H2S), odor offensiveness, pH, ammonium nitrogen (NH4(+)-N), volatile fatty acids (VFAs), urease and indigenous flora. The results indicated that the combination of L. plantarum and soluble carbohydrates dramatically reduced manure pH. Lower pH resulted in the reduction of NH3 volatilization (34.6%-92.4%, P < 0.01), the increases of H2S (P < 0.05) and NH4(+)-N (5.3%-17.5%, P < 0.05). In addition, L. plantarum and soluble carbohydrates additions significantly reduced odor offensiveness, those VFAs related to malodor indicators (valeric acids, 12.3%-47.7%, P < 0.05; iso-valeric, 3.5%-23.8%) and the main microorganisms responsible for odor production, with the number of Eubacteria in swine manure reducing by 4.9%, 11.6%, 17.4%, 34.1% and 32.2% respectively.
粪便异味导致了养猪户和周边居民之间的矛盾和诉讼日益增加。本研究评估了植物乳杆菌（Lactobacillus plantarum）和不同添加量可溶性碳水化合物对猪粪中恶臭化合物、化学物质和土著菌群的影响。添加物按干粪重量计算。监测的变量包括氨（NH3）、硫化氢（H2S）、气味难闻度、pH 值、铵态氮（NH4(+)-N）、挥发性脂肪酸（VFAs）、脲酶和土著菌群。结果表明，植物乳杆菌和可溶性碳水化合物的组合可显著降低粪便 pH 值。较低的 pH 值导致 NH3 挥发减少（34.6%-92.4%，P < 0.01），H2S 增加（P < 0.05）和 NH4(+)-N 增加（5.3%-17.5%，P < 0.05）。此外，植物乳杆菌和可溶性碳水化合物的添加可显著降低气味难闻度，降低与恶臭指标相关的 VFAs（戊酸，12.3%-47.7%，P < 0.05；异戊酸，3.5%-23.8%）和主要产生气味的微生物，猪粪中真细菌数量分别减少了 4.9%、11.6%、17.4%、34.1%和 32.2%。
