manure

Cattle-associated antibiotics disturb soil ecosystems

Virginia Tech team finds amount of antibiotic-resistant genes was 200 times greater in soil near cattle manure piles.

Manure from cattle administered antibiotics drastically changes the bacterial and fungal make-up of surrounding soil, according to a Virginia Tech research team.

The team analyzed soil samples from 11 dairy farms in the U.S. and found that the amount of antibiotic-resistant genes was 200 times greater in soil near manure piles compared with soil that wasn’t near the piles. Furthermore, microbes with greater antibiotic resistance showed higher stress levels.

The findings

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TAGS: Beef Dairy
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