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 Growth rates of BSFL fed on fresh human faeces 
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Post Growth rates of BSFL fed on fresh human faeces
Growth rates of black soldier fly larvae fed on fresh human faeces and their implication for improving sanitation
http://onlinelibrary.wiley.com/doi/10.1 ... 12228/full

Article first published online: 22 NOV 2013

Banks, I. J., Gibson, W. T. and Cameron, M. M. (2014), Growth rates of black soldier fly larvae fed on fresh human faeces and their implication for improving sanitation. Tropical Medicine & International Health, 19: 14–22. doi: 10.1111/tmi.12228

Quote:
Objectives

To determine the capacity of black soldier fly larvae (BSFL) (Hermetia illucens) to convert fresh human faeces into larval biomass under different feeding regimes, and to determine how effective BSFL are as a means of human faecal waste management.

Methods

Black soldier fly larvae were fed fresh human faeces. The frequency of feeding, number of larvae and feeding ratio were altered to determine their effects on larval growth, prepupal weight, waste reduction, bioconversion and feed conversion rate (FCR).

Results

The larvae that were fed a single lump amount of faeces developed into significantly larger larvae and prepupae than those fed incrementally every 2 days; however, the development into pre-pupae took longer. The highest waste reduction was found in the group containing the most larvae, with no difference between feeding regimes. At an estimated 90% pupation rate, the highest bioconversion (16–22%) and lowest, most efficient FCR (2.0–3.3) occurred in groups that contained 10 and 100 larvae, when fed both the lump amount and incremental regime.

Conclusion

The prepupal weight, bioconversion and FCR results surpass those from previous studies into BSFL management of swine, chicken manure and municipal organic waste. This suggests that the use of BSFL could provide a solution to the health problems associated with poor sanitation and inadequate human waste management in developing countries.

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Mon May 19, 2014 3:55 pm
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Post Re: Growth rates of BSFL fed on fresh human faeces
That is excellent and valuable information, BW. Thanks for posting it.
It is interesting that the experiments included such small numbers of larvae, ie 10 and 100, in their testing, since these quantities are far lower than would typically be produced in a single batch of BSF eggs. Perhaps it is linked to the thinking around the 'single lump amount of faeces', (which gave me a chuckle) with a view to every person in a village, say, being issued with 10-100 BSFL for the purpose of encouraging the development of single person waste disposal units.


Tue May 20, 2014 2:53 am
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Post Re: Growth rates of BSFL fed on fresh human faeces
Perhaps single lump should be read as single dump! :D


Fri May 23, 2014 6:23 am
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Post Re: Growth rates of BSFL fed on fresh human faeces
Billy wrote:
Perhaps single lump should be read as single dump! :D


That works.... ;)

Great study, thanks for posting it, as always BW.

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Mon May 26, 2014 8:56 am
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