Journal of Ecology and Rural Environment ›› 2020, Vol. 36 ›› Issue (12): 1632-1638.doi: 10.19741/j.issn.1673-4831.2020.0102

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Feasibility and Potential Problems of Earthworm Cultivation From Decomposed Chicken Manure

RAN Xue-wen, LI Ning, XIONG Xiao-li   

  1. College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
  • Received:2020-02-18 Published:2020-12-23

Abstract: By mixing chicken manure (CM) and sawdust as earthworms feeding materials after fermentation, and the initial carbon-nitrogen ration (C/N) was adjusted to 20, 25 and 30 by controlling the amount of sawdust. The survival rate and weight growth rate of earthworms were taken as indicators to verify the feasibility of feeding earthworms with fermented CM. By feeding earthworms with for 21 days the potential problems in large-scale breeding process was then analyzed., The results show that the survival rate and weight growth rate of the experimental group with initial C/N of 30 were the highest, reaching 99.66% and 38.04%, respectively. And the content of Arsenic (As) in earthworms and wormcast exhibited higher level, reaching 49.87 and 175.40 mg·kg-1, respectively. The toxicity of the three antibiotics (florfenicol, sulfamethoxazole and chlortetracycline hydrochloride) to earthworms was low and had no influence on the cocoon production of earthworms. The research results can provide theoretical guidance for the practical application of earthworm cultivation with decomposed chicken manure (CM).

Key words: chicken manure, fermentation, earthworm

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