Analysis of environmental sound levels in modern rodent housing rooms
Analysis of environmental sound levels in modern rodent housing rooms
复制标题
DOI：
10.1038/laban0509-154
复制
发表时间：
2009-05-01
期刊：
影响因子：
6.9
通讯作者：
Watson, Julie
中科院分区：
文献类型：
--
作者：
Lauer, Amanda M.;May, Bradford J.;Watson, Julie
动物饲养设施中的噪声是一种环境变量，可影响小鼠的听力、行为和生理。作者在几个24小时内测量了两个啮齿动物饲养室（1号室和2号室）的声级。1号房间人员往来频繁，设有通风架和静态笼，饲养大量小鼠。2号房间只有少数工作人员进入，仅包含静态笼，饲养的小鼠较少。在这两个房间中，背景声级通常约为80 dB，瞬态噪声导致声级暂时高于基线水平30-40 dB;这种峰值经常发生在工作时间（上午8：30至下午4：30），而在非工作时间很少出现。在工作时间在房间1的噪音峰值发生约两倍，经常在房间2（P = 0.01）。使用位于房间内的转换站导致背景噪音增加约10分贝。噪声和噪声变化主要归因于人员活动。减少噪音的尝试应该集中在控制室内活动和实验人员交通产生的声音;这可能会减少研究结果的变化，提高动物福利。
Noise in animal housing facilities is an environmental variable that can affect hearing, behavior and physiology in mice. The authors measured sound levels in two rodent housing rooms (room 1 and room 2) during several 24-h periods. Room 1, which was subject to heavy personnel traffic, contained ventilated racks and static cages that housed large numbers of mice. Room 2 was accessed by only a few staff members, contained static cages only and housed fewer mice. In both rooms, background sound levels were usually about 80 dB, and transient noises caused sound levels to temporarily rise 30-40 dB above the baseline level; such peaks occurred frequently during work hours (8: 30 AM to 4: 30 PM) and infrequently during non-work hours. Noise peaks during work hours in room 1 occurred about two times as often as in room 2 (P = 0.01). Use of changing stations located in the rooms caused background noise to increase by about 10 dB. Loud noise and noise variability were attributed mainly to personnel activity. Attempts to reduce noise should concentrate on controlling sounds produced by in-room activities and experimenter traffic; this may reduce the variability of research outcomes and improve animal welfare.