The Application Effect of Swine Manure Treatment with Black Soldier Fly Larvae
To study the application effect of swine manure treatment with black soldier fly larvae,the study on using black soldier fly larvae to treat swine feces was conducted in four demonstration sites in Yunnan Province,the conversion efficiency and the changes of physical and chemical parameters of pig ma-nure,the nutritional value of black soldier fly larvae and frass were researched.The results showed that the weight loss rate of pig manure was from 59.92％to 71.13％,the total nitrogen reduction rate was 42.83％to 61.73％,and the total phosphorus reduction rate was 42.83％to 61.73％.Black soldier fly lar-vae was reach in crude protein,ether extract,anmimo acids and fatty acid.The content of crude protein and ether extract were 38.08％～41.04％and 28.27％～33.75％respectively.The content of crude protein and ether extract among the four demonstration sites were significantly different(P＜0.05).The content of crude ash in Lufeng and Qujing demonstration sites were of insignificant difference(P＞0.05),but it was significantly different between Wuding and Shiping demonstration sites(P＜0.05).The difference of leu-cine was insignificant(P＞0.05),while other amino acids differ significantly in the four sites.The con-tents of glutamic acid,isoleucine,methionine and histidine were rich.The content of unsaturated fatty acids were 46.65～53.81％,among which the oleic acid and palmitoleic acid were particularly higher,being 28.57％and 16.10％,respectively.The organic matter,total nutrients,the mortality rate of ascaris,pH value,the number of E.coli in frass compost conforms to the national standard of organic fertilizer.The content of organic matter was especially rich,which was 73.87-78.88％,and the total nutrition was 8.20％～9.90％,all of them were higher than the national level.It can be seen that the application effect of swine manure treatment using black soldier fly larvae is remarkable,and the black soldier fly larvae can adapt to the environment well.It also promotes the innocent treatment and resource utilization of manure and waste from pig farms,realizing the sustainable development of livestock manure and waste.This technology can therefore be popularized in large scale in livestock breeding industry.
black soldier fly larvaeswine manureconversion efficiencynutritional value
万方数据
维普
