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Table 2 Average distribution of antimicrobial resistance genes (copies per million) at class level in all sample types across both farm types

From: The distribution of microbiomes and resistomes across farm environments in conventional and organic dairy herds in Pennsylvania

  Conventional farms Organic farms Reference Significance – P values
CF CL CM CS OF OL OM OS RS FT ST FT:ST
Aminocoumarins 0.00 0.00 0.00 21.98 0.00 0.00 0.00 22.60 0.00 0.940 0.466 0.927
Aminoglycosides 220.54 176.20 32.76 0.00 22.51 75.26 57.79 0.21 0.00 0.356 0.564 0.716
Bacitracin 4.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.526 0.564 0.741
Betalactams 751.60 18.07 6.02 0.00 180.36 1.28 4.61 6.25 0.00 0.000 0.001 0.042
CAP 23.48 0.00 0.00 0.00 0.00 0.00 1.13 5.46 0.00 0.356 0.529 0.562
Glycopeptides 0.00 0.00 0.00 20.73 0.00 0.10 0.00 17.81 12.44 0.922 0.015 0.741
MLS 983.59 158.17 30.21 10.71 271.03 80.99 12.65 2.46 0.00 0.008 0.015 0.188
Multi-drug resistance 23.51 9.57 2.55 23.76 0.00 7.14 0.79 63.64 41.10 0.356 0.564 0.188
Mupirocin 23.32 0.00 0.00 0.00 54.95 0.00 0.00 0.00 0.00 0.690 0.980 0.741
Nucleosides 10.61 1.21 0.00 0.00 0.21 0.00 0.12 0.00 0.00 0.356 0.529 0.716
Phenicol 0.00 3.64 2.05 0.00 0.00 1.09 6.45 0.44 0.00 0.922 0.980 0.741
Rifampin 52.48 0.00 0.00 15.13 61.37 0.00 0.00 16.28 1.83 0.922 0.980 0.927
Sulfonamides 2.06 12.77 3.98 0.00 0.00 32.30 11.43 0.00 0.00 0.922 0.980 0.927
Tetracyclines 3942.03 365.02 67.56 0.47 838.18 165.77 18.92 4.37 0.00 0.005 0.013 0.186
Trimethoprim 0.00 0.00 0.00 0.15 0.00 0.00 1.47 0.44 0.23 0.922 0.642 0.562
  1. CF conventional feces; OF organic feces; CL conventional lagoon; OL organic lagoon; CM conventional manure; OM organic manure; CS conventional soil; OS organic soil; RS reference soil; FT Farm type; ST Sample type; CAP Cationic antimicrobial peptides