Table 2 Characteristics for three Norwegian piglet producing farms included in the study
From: Infrared thermography as a possible technique for the estimation of parturition onset in sows
Farm 1 | Farm 2 | Farm 3 | |
|---|---|---|---|
Location | Southeastern Norway | Rogaland | Rogaland |
Housing | Loose housed | Loose housed | Loose housed but crated during farrowing |
Size of farrowing pen | 7.3 m² | 7.2 m² | 7.2 m² |
Part of pen accessible for sows during farrowing | 6.5 m² | 6.1 m² | 1.68 m² |
Ventilation system | Diffuse | Diffuse | Diffuse |
Room temperature °C, mean ± SE | 19.4 ± 0.02 | 18.8 ± 0.04 | 20.1 ± 0.02 |
Room humidity %, mean ± SE | 66.7 ± 0.17 | 61.6 ± 0.15 | 50.6 ± 0.12 |
Feeding system | Dry | Wet | Wet |
Breed | Landrace x Yorkshire | Landrace x Z-line Yorkshire | Landrace x Z-line Yorkshire |
Number of sows included | 37 | 27 | 27 |
Measurements performed by | Veterinary students | Researchers | Researchers |
Year of visit | 2013 | 2016 | 2017 |
Time of visit | 24.1.–27.1. | 16.–22.2. | 22.2–3.3. |