Table 2.
Sprinkling treatment | ||||||||
---|---|---|---|---|---|---|---|---|
Control | Bedding only | Pigs only | Bedding and pigs | |||||
Bedding moisture (%) | ||||||||
Loads | Mean | SD | Mean | SD | Mean | SD | Mean | SD |
0 | 5.5 | 1.5 | 3.7 | . | 7.6 | 5.3 | 4.5 | . |
1 | 63.3 | 6.2 | 68.8 | 8.2 | 62.5 | 15.2 | 70.6 | 8.7 |
2 | 63.2 | 5.4 | 65.4 | 5.2 | 63.6 | 11 | 73.1 | 9.4 |
3 | 62.5 | 4.2 | 59.4 | 6.4 | 70.1 | 9.4 | 62.8 | 8.3 |
≥4 | 60.6 | 2 | 61.7 | 7.3 | 70.7 | 5 | 68.4 | 5.3 |
1 There were 27 samples collected from trailers given the control treatment: 0 loads, n = 2; 1 load, n = 14; 2 loads, n = 6; 3 loads, n = 2; and ≥4 loads, n = 3. There were 58 samples taken from trailers given the pigs only treatment: 0 loads, n = 1; 1 load, n = 26; 2 loads, n = 11; 3 loads, n = 11; and ≥4 loads, n = 6. There were 25 samples collected from trailers given the bedding only treatment: 0 loads, n = 1; 1 load, n = 6; 2 loads, n = 9; 3 loads, n = 5; and ≥4 loads, n = 4. There were 38 samples taken from trailers given the pigs and bedding treatment: 0 loads, n = 1; 1 load, n = 12; 2 loads, n = 10; 3 loads, n = 6; and ≥4 loads, n = 9. Bedding moisture was calculated by: [(dry bedding weight)/(wet bedding weight)] × 100.
2 Sprinkling treatments were defined as: control (no water on pigs, bedding dry), pigs only (bedding dry, pigs watered for 6–8 min), bedding only (bedding already wet or bedding watered for 4–6 min), and bedding and pigs (both pigs and bedding wetted as previously described).
3 WARM weather was defined as <26.7 °C; based on 50 loads.
4 HOT weather was defined as ≥26.7 °C; based on 92 loads.