Ciprofloxacin residues in biosolids compost do not selectively enrich populations of resistant bacteria

Biosolids and livestock manure are valuable high-carbon soil amendments, but they commonly contain antibiotic residues that might persist after land application. While composting reduces the concentration of extractable antibiotics in these materials, if the starting concentration is sufficiently high then remaining residues could impact microbial communities in the compost and soil to which these materials are applied.…

Sustainable Dairy Production Housing / Manure System: Compost Bedded Loose Housing Dairy Barn


What Are Compost Bedded Dairy Barns?

In the U.S., the first compost bedded loose housing (CBP) dairy barns were developed by Virginia dairy producers in the 1980’s to increase cow comfort and longevity.  The key component of a CBP dairy barn is a large, open resting area generally bedded with sawdust or dry, fine wood shavings that is tilled to support aerobic composting.…