Manser C E, Morris T H, Broom D M
SmithKline Beecham Pharmaceuticals, The Frythe, Welwyn, Herts, UK.
Lab Anim. 1995 Oct;29(4):353-63. doi: 10.1258/002367795780740023.
The welfare of laboratory rats housed on either solid or grid floors was investigated in several ways. No differences were found in body weight gain, food consumption or water consumption amongst rats housed in either condition. When handling was standardized between the 2 groups, there was no correlation between flooring and docility. Preference testing revealed that rats chose to dwell on solid floors rather than grids, regardless of previous housing experience. This preference for solid floors was particularly marked (88%) when the animals were resting and much less marked during activity (55.4%). Since the rats were observed to spend 70 to 75% of their time resting, it was concluded that their welfare was likely to be improved by housing them on solid floors.
从多个方面对饲养在实心地或格栅地板上的实验大鼠的健康状况进行了研究。在这两种环境下饲养的大鼠，在体重增加、食物消耗或水消耗方面未发现差异。当两组之间的处理方式标准化后，地板类型与大鼠温顺程度之间没有相关性。偏好测试表明，无论之前的饲养经历如何，大鼠都选择栖息在实心地而不是格栅上。当动物休息时，对实心地的这种偏好尤为明显（88%），而在活动期间则不太明显（55.4%）。由于观察到大鼠70%到75%的时间都在休息，因此得出结论，将它们饲养在实心地可能会改善它们的健康状况。
