Table 2 Enterobacteriaceae (EB), moulds and yeast (log 10 cfu/ml; arithmetic means, standard errors SE in brackets), the proportion of Enterobacteriaceae resistant to sulphonamide and trimethoprim (STrEB), and the pH in the feed. Case vs. control farms and drop pipes vs. ring lines
Case | Control | P | Drop pipes | Ring lines | P | |||||
|---|---|---|---|---|---|---|---|---|---|---|
EB | 2.37 | (0.14) | 1.37 | (0.14) | 0.001 | 2.38 | (0.15) | 1.53 | (0.14) | 0.001 |
STrEB | 1.60 | (0.14) | 0.15 | (0.05) | <0.001 | 1.26 | (0.14) | 0.74 | (0.12) | <0.001 |
%STrEB | 30.0 | (3.3) | 0.02 | (0.01) | <0.001 | 21.2 | (3.3) | 17.6 | (3.6) | 0.93 |
Moulds | 1.55 | (0.10) | 0.86 | (0.11) | 0.004 | 1.56 | (0.12) | 0.97 | (0.10) | 0.002 |
Yeast | 5.23 | (0.09) | 5.81 | (0.09) | 0.10 | 5.59 | (0.08) | 5.36 | (0.11) | 0.76 |
pH | 5.18 | (0.05) | 5.03 | (0.04) | 0.42 | 5.32 | (0.04) | 4.93 | (0.05) | <0.001 |