Table 5.
Summary of climate- and behaviour-related measurements in pens on 32 farms with growing–finishing pigs.
| Measurement | N Pens | Average | Median | Min | Max | Stdev |
|---|---|---|---|---|---|---|
| Pigs per pen | 183 | 13.1 | 12 | 3 | 50 | 7.69 |
| Pen length (m) | 182 | 3.99 | 3.87 | 1.98 | 8.7 | 1.26 |
| Pen width (m) | 182 | 2.58 | 2.4 | 1.53 | 6.71 | 0.84 |
| Pens per room | 188 | 12.1 | 12 | 1 | 40 | 8.09 |
| Room length (m) | 188 | 16.0 | 15 | 3 | 36 | 7.76 |
| Room width (m) | 188 | 9.15 | 8 | 3 | 23 | 3.79 |
| Room height (m) | 188 | 3.46 | 3 | 2 | 8 | 1.01 |
| Outdoor temperature (°C) | 32 | 11.5 | 9.5 | 1 | 27 | 7.03 |
| Indoor temperature (°C) | 184 | 23.8 | 24 | 17 | 28 | 2.66 |
| CO2 level (ppm) | 183 | 2425 | 2300 | 400 | 4700 | 109 |
| NH3 level (ppm) | 183 | 15.2 | 11 | 1 | 69 | 12.6 |
| Pig fouling score | 192 | 0.42 | 0 | 0 | 2 | 0.70 |
| Pen fouling score | 192 | 0.40 | 0 | 0 | 2 | 0.69 |
| Eye score | 192 | 0.30 | 0 | 0 | 3 | 0.67 |
| Tail score | 192 | 0.06 | 0 | 0 | 2 | 0.26 |
| Ear score | 192 | 0.12 | 0 | 0 | 2 | 0.39 |
| Panting | 192 | 0.20 | 0 | 0 | 6 | 0.85 |
| Pumping | 192 | 0.05 | 0 | 0 | 3 | 0.32 |
| Sneezing/coughing | 192 | 0.71 | 0 | 0 | 20 | 2.48 |
| Huddling | 192 | 0.20 | 0 | 0 | 2 | 0.49 |
| Shivering | 192 | 0.01 | 0 | 0 | 1 | 0.10 |
| Lying separately | 192 | 0.22 | 0 | 0 | 2 | 0.49 |
| Posture | 192 | 0.43 | 0 | 0 | 2 | 0.65 |
| Standing pigs (n) | 192 | 10.2 | 9 | 0 | 50 | 7.87 |
| Space allowance (m2/pig) | 178 | 0.87 | 0.82 | 0.30 | 1.74 | 0.24 |
| Room volume (m3/pig) | 184 | 3.75 | 3.39 | 0.75 | 10.88 | 1.64 |
| Mortality (%) | 32 | 6.03 | 2 | 0 | 123 | 21.2 |
| Antibiotics (doses/pig/year) | 32 | 1.88 | 1 | 0 | 17 | 3.12 |
| Pleurisy (%) | 32 | 6.19 | 2 | 0 | 46 | 10.9 |
| Pneumonia (%) | 32 | 2.44 | 1.5 | 0 | 12 | 3.13 |