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Table 1 Descriptive values for Escherichia coli (E. coli), faecal coliforms and methicillin resistant Staphylococcus aureus (MRSA) enumerations (log colony forming units/sampling area) given for each sampling moment for CE units and control units

From: Comparison of competitive exclusion with classical cleaning and disinfection on bacterial load in pig nursery units

Sampling moment

E. coli

Faecal coliforms

MRSA

CE units

 BCa

0.0–1.6–2.8

2.7 ± 1.5

2.9 ± 1.4

 AC/ADb

0.0–0.0–2.8

0.0–1.9–3.8

0.0–0.0–0.0

 W1c

0.0–0.0–2.8

0.0–2.7–3.8

3.3 ± 1.1

 W5d

2.5 ± 1.6

3.1 ± 1.5

3.2 ± 1.1

Control units

 BC

0.0–0.0–3.0

2.6 ± 1.7

2.9 ± 1.4

 AC/AD

0.0–0.0–0.0

0.0–0.0–0.0

0.0–0.0–0.0

 W1

0.0–0.0–3.0

0.0–2.0–3.6

3.2 ± 1.3

 W5

2.5 ± 1.8

3.1 ± 1.6

2.9 ± 1.3

  1. Mean and standard deviation are given for enumerations that are normally distributed. First quartile (Q1), median (Q2, bold characters) and third quartile (Q3) are given for enumerations that did not follow this distribution
  2. aBC, before cleaning
  3. bAC/AD, after cleaning/after disinfection
  4. cW1, after 1 week of production
  5. dW5, after 5 weeks of production