A full-scale house fly (Diptera: Muscidae) larvae bioconversion system for value-added swine manure reduction

Hang Wang, Zhijian Zhang, George F. Czapar, Mari K.H. Winkler, Jianguo Zheng

Research output: Contribution to journalArticlepeer-review


Manure produced from confined animal farms can threaten public and environmental health if not managed properly. Herein, a full-scale commercial bioconversion operation in DeQing County, China for value-added swine manure reduction using house fly, Musca domestica L., larvae is reported. The greenhouse-assisted larvae bioreactor had a maximum daily treatment capacity of 35 m3 fresh raw manure per day. The bioconversion process produced a fresh larvae yield of 95-120 kg m3 fresh raw manure. This process provided an alternative animal foodstuff (having 56.9 and 23.8% protein and total fat as dry matter, respectively), as well as captured nutrients for agricultural re-utilization. Bioconversion reduced odour emission (characterized by 3-methylindole) and the Escherichia coli (E. coli) index by 94.5 and 92.0%, respectively, and reductions in total weight, moisture and total Kjeldahl nitrogen in solids were over 67.2, 80.0 and 76.0%, respectively. Yearly profit under this trial period ranged from US$33.4-46.1 per m3. It is concluded that swine manure larvae bioconversion technology with subsequent production of value-added bio-products can be a promising avenue when considering a programme to reduce waste products in an intensive animal production system.

Original languageEnglish (US)
Pages (from-to)223-231
Number of pages9
JournalWaste Management and Research
Issue number2
StatePublished - Feb 2013


  • Musca domestica
  • animal production
  • economic return
  • vermicomposting
  • waste reduction

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution


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