RESEARCH REPORTS FROM INSTITUTE FOR AGRO-MICROBIOLOGY, Vol. 4, 2000 p.75-83
Copyright © Institute for Agro-Microbiology. All Rights Reserved.

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ORIGINAL ARTICLE

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6.Investigation on Safety of Livestock Excreta in Nature Farming

Tetsuo Morita*1, Takao Kinbara*2, and Tomoaki Kimura*2 (*1Faculty of Agriculture, Miyazaki University, *2Institute for Agro-Microbiology)

Detrimental factors which could affect the safety of compost were surveyed in livestock excreta. Heavy metals, synthetic chemical substances and antibiotics as feed additives, pesticide residues in feeds and pathogenic organisms including drug resistant bacteria, pathogenic germs and parasites were noted as risk factors in animal excreta. Sterilizing effects of heat exposure on pathogenic organisms as well as the degradation and transformation of chemical substances by microorganisms are expected while fermentation proceeds in compost. These effects of compost fermentation need to be elucidated in details.

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