家蝇幼虫生态处理对猪粪和鸡粪中微生物数量的影响

The Effects of Housefly Larvae Ecological Treatment on Microorganisms Number in Pig Manure and Chicken Manure

[目的]研究家蝇幼虫生态处理后猪粪、鸡粪中微生物（细菌、真菌、放线菌）数量的变化情况。[方法]猪粪、鸡粪经家蝇幼虫生态处理后,采用稀释平板计数法对样品中细菌、真菌及放线菌数量进行分析,设立未经幼虫处理的猪粪、鸡粪为对照。[结果]正常对照组猪粪在恒温、恒湿条件下放置3~5 d后,细菌、真菌及放线菌的数量达到最高峰,分别为1 378×10^9、3 352.0×10^6和3 48.81×10^7cfu/g。经家蝇幼虫处理后,猪粪中的各类菌数量增加幅度均较小,第5天相应的各类菌落数为158.40×10^9、185.0×106和4.6×10^7cfu/g,总体上呈较为平稳态势。正常对照组的鸡粪前5 d 3种微生物数量增加亦明显,而家蝇幼虫处理组变化均不大。[结论]家蝇幼虫处理猪粪、鸡粪后,能显著降低粪便中细菌、真菌、放线菌的数量。

[ Objective] [ To study the number change of microorganisms such as bacterial, fungi, and actinomycete in pig manure, chicken manure after ecological treatment by housefly larvae. [ Method] [ The number of bacteria, fungi and actinomycetes in pig manure and chicken manure were counted with dilution plate count after treatment by housefly larvae, the non - treated pig manures and chicken manures as control. [Result] [ After 3 -5 days, the number of bacteria, fungi and actinomycetes of control group, reached its peak at 1 378 × 10^9, 3 352.0 ×10^6, 348.81 ×10^7 cfu/g, while the experimental group, only reached 158.40 ×10^9, 185.0 ×10^6 and 4.6 ×10^7 cfu/g, the general was relatively stable. The number change trend of microorganism of chicken manure group was as same as pig manure group. [ Conclusion] [ The housefly larvae can significantly reduce the number of bacterial, fungi, and actinomycetes in pig manure, chicken manure.