McKinnon A J, Edwards S A, Stephens D B, Walters D E
Br Vet J. 1989 Jul-Aug;145(4):367-72. doi: 10.1016/0007-1935(89)90035-3.
Behavioural observations were made on 150 3-week weaned pigs housed in pens with fully perforated floors, or a solid-floored lying area with or without straw. Observations were made during a period of high ambient temperatures and during cool weather. At high ambient temperatures pigs with part-solid floors defaecated and urinated in the lying area and showed a higher (P less than 0.01) incidence of rooting behaviour associated with wallowing. Pigs on fully perforated floors showed reduced levels of activity in hot conditions (P less than 0.01). Pigs given straw were more active (P less than 0.01) and spent 25% of active behaviour in straw directed behaviour. There was a higher incidence (P less than 0.01) of oral behaviour directed at penmates and pen fittings amongst pigs housed on fully perforated floors.
对150头3周龄断奶仔猪进行了行为观察，这些仔猪饲养在地板完全穿孔的猪栏中，或有或没有垫草的实心地板躺卧区。观察在高温环境期间和凉爽天气期间进行。在高温环境下，部分实心地板的猪在躺卧区排便和排尿，且与打滚相关的拱地行为发生率更高（P<0.01）。地板完全穿孔的猪在炎热条件下活动水平降低（P<0.01）。有垫草的猪更活跃（P<0.01），且25%的活跃行为用于与垫草相关的行为。地板完全穿孔的猪栏中的猪对同栏猪和猪栏设施进行口部行为的发生率更高（P<0.01）。
