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Effect of composting and number of flocks on poultry litter extract bod and toxicity

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Abstract

Changes in poultry litter's (aqueous extract) biochemical oxygen demand (BOD) and toxicity, to photobacterium phosphoreum, calculated as EC50 values, with the time of composting and the number of flocks raised, before cleaning the house, were studied. The BOD of the extract (5 g L−1) is comparable to that of raw sewage and it increased with the time of composting, following a first order kinetics. The extract showed a toxicity higher than the toxicity of a solution of 25 ppm phenol. Increasing the number of flocks raised (from 2 to 15), before cleaning the house, reduced both the litter's BOD (22%) and toxicity (66%).

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Authors and Affiliations

  1. University of Maryland Eastern Shore, 21853, Princess Anne, MD, USA

    Gian Gupta & Michael Doherty

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  1. Gian Gupta
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  2. Michael Doherty
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Gupta, G., Doherty, M. Effect of composting and number of flocks on poultry litter extract bod and toxicity. Water Air Soil Pollut 51, 139–145 (1990). https://doi.org/10.1007/BF00211511

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  • DOI: https://doi.org/10.1007/BF00211511

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