Study On The Production Of Earthworm Powder By Using Earthworms Cultured With Pig Manure

Pig production produce a lot of manure,without proper treatment,will cause serious pollution if emissions to the environment.This paper studies the technology and technology of producing earthworm powder by using pig manure to produce earthworm powder,and aims at providing the technology and method for the recycling of pig manure and reducing the pollution to the environment.The fermentation of earthworms: Dry manure,water content(20 ± 0.5)%,milled through 2mm aperture sieve,wheat straw to dry,water content(6.3 ± 0.3)%,crushing length of 2~2.5 cm,and the diameter of the straw was mixed with the wheat straw(16.3%~23.2%),and the ratio of C/N was 25% ~ 30 which is the best,the amount of Bacillus subtilis is 1.0 % for the benefit,the substrate moisture content is 60 %,the fermentation environment temperature is 28 ?,the substrate temperature exceeds 50 ? every 3 d and then lasts for 10 days,The rate dropped to33%~35%,the p H value was 7.8 ~ 8.5 and the T value was 0.62~0.65.Earthworm farming: When the substrate temperature and humidity are 20±1 ?,65~70%,about 10 d times the matrix,the thickness of about 3 cm,when the C/N ratio of 15.6~19.4,the young earth grow 5 to 7 weeks Can grow to 0.45 g~0.50 g,this time is the best harvest of earthworm standards.Earthworm powder processing: Earthworms after cleaning the magazine removed clean,drying at 60 ?,4 h dried,sifted through a 40 mesh sieve,This processing conditions can be earthworm powder to ensure maximum quality of appearance and odor,earthworm powder wasyellowish brown,and flavor with normal fine silty.Nutritional composition and safety of earthworm powder: The total amount of crude protein and amino acid earthworm powder were 65.93 % and 62.97 %,the content of Cu,Zn,Fe and As in earthworms were 106.88 mg/kg,2088.00 mg/kg,185.00 mg/kg and 21.62 mg/kg,respectively.Aflatoxin B1,zearalenone,penicillin sodium,amoxicillin and enrofloxacin were not detected in the earthworm powder,health standards,can be used as animal feed.Benefit Analysis of Earthworm Farming: From the earthworm production and output efficiency analysis shows that earthworm farming a year later,Earthworm grounds,earthworms and other species may also be reused earthworms,earthworm breeding field,the net income per acre up to 24 300 ~ 28 500 yuan.From the analysis of ecological benefits,the results showed that earthworms could bring high economic benefits from earthworm production.the utilization rate of heavy metals Cu,Zn,Fe and As in earthworms after earthworm culture was 74.56 %,71.11 %,66.15 % and 32.97 %.The contents of Cu and Zn in the earthworm feces were 240 mg / kg and440 mg / kg,respectively.When the organic fertilizer was used as farmland,it was necessary to consider whether the heavy metals were excessive in the farmland and the residual residues in the crops.In this study,we established the technology and technology of producing earthworm powder by using porcine feccured earthworms.The earthworm powder can be used as animal feed,and the substrate after earthworm can reduce the pollution to the environment and realize the recycling of pig manure.