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7 April 2021 /
Animal poo may make food safer
Despite concerns that animal manure can spread dangerous pathogens, a new study suggests organic manure may actually help farmers to prevent food-borne disease outbreaks
Credit: Thanit Weerawan/Getty Images
A new study suggests that animal manure (poo) may be a safer bet than conventional fertilisers in protecting the public from food-borne diseases – provided the manure is treated appropriately.
A new analysis of a 27-year experiment comparing organic and conventional soil management indicates that animal-based composts do not promote pathogen survival and may even promote bacterial communities that suppress pathogens. Credit: Dr. Devarajan
Prevailing attitudes in microbial research see animal manure as a danger to public health, and for valid reasons. Notable disease-causing bacteria are associated with animal manure, including
April 8, 2021 8:04 pm
Research carried out in the U.S. has found that manure does not promote pathogen survival when it comes to arable crops – and may even promote bacterial communities that suppress pathogens.
The study, which has been published in the
Journal of Applied Microbiology, follows other research documenting a higher prevalence of foodborne pathogens in fields fertilised with livestock manure compared with conventional fertilisers.
However, the latest study suggests any potential move away from slurry should be reconsidered, finding that manure-based composts may actually help growers prevent foodborne disease outbreaks.
Fertiliser trials in terms of arable crops
The findings come on the back of an experiment which has been running for 27 years comparing organic and conventional soil management.
Organic composts may help farmers prevent foodborne disease outbreaks
IMAGE: A new analysis of a 27-year experiment comparing organic and conventional soil management indicates that animal-based composts do not promote pathogen survival and may even promote bacterial communities that suppress.
Image:
Dr. Devarajan
Foodborne disease outbreaks linked to the consumption of fresh produce have caused farmers to re-evaluate their practices. A recent analysis of a 27-year experiment comparing organic and conventional soil management indicates that animal-based composts do not promote pathogen survival and may even promote bacterial communities that suppress pathogens.
The study, which is published in the Journal of Applied Microbiology, comes following other research documenting a higher prevalence of foodborne pathogens in fields fertilized with raw animal manure compared with conventional fertilizers.
Organic composts may help farmers prevent foodborne disease outbreaks
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