Effect of cage size on patterns of activity and health of beagle dogs.
Effect of cage size on patterns of activity and health of beagle dogs.
复制标题
笼子大小对比格犬活动模式和健康的影响。
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
P. A. Mattis
中科院分区：
文献类型：
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作者：
M. Hite;H. M. Hanson;N. Bohidar;P. A. Conti;P. A. Mattis
32只雄性比格犬被随机分配，其中16只进入标准尺寸的笼子（30 X 30 X 30英寸），16只进入大笼子（90 X 30 X 30英寸），为期13周，然后“交叉”再进行13周。每天观察这些狗，每周称重。在对照期和研究期间每月进行一次心电图和眼科检查，两次血液学和生化测量。每60秒给每只狗拍一张照片，每周7天，每天约8.5小时。对影片进行处理和分析，找出站着、坐着、躺着或睡觉时的动作。此外，在大笼子里的狗被占用的区域（前面，中间，或后面）得分。在标准笼子和大笼子里的狗在体重增加、站立时间百分比和睡眠时间百分比方面没有统计学上的显著差异。坐着的时间百分比（标准笼12.7%，大笼9.4%）和躺着的时间百分比（标准笼6.6%，大笼8.3%）差异有统计学意义（p < 0.05）；然而，这些差异并不大到足以引起任何实际的关注。在13周的研究期间，两种大小的笼子中的狗的短暂反应模式基本上是相同的（统计验证）。统计结果也表明，没有显著的结转（残余）效应与任何测量参数相关。没有发现与两个笼子大小有关的有利或不利影响。标准笼子的大小对于实验室的小猎犬来说似乎是足够的，而当狗在大笼子里时，在行为、活动模式或健康方面没有发现任何优势。
Thirty-two male beagle dogs were assigned at random, 16 to standard size cages (30 X 30 X 30 inches) and 16 to large cages (90 X 30 X 30 inches) for a period of 13 weeks, and then were "crossed-over" for an additional period of 13 weeks. The dogs were observed daily and weighed weekly. Electrocardiographic and ophthalmologic examinations were made once and hematologic and biochemical measurements were made twice during the control period and at monthly intervals during the study. Photographs were taken of each dog every 60 seconds, 7 days a week, for about 8.5 hours each day. The film was processed and analyzed for the acf standing sitting, lying, or sleeping. In addition, dogs in the large cages were scored for the region (front, middle, or back) occupied. No statistically significant differences were found between dogs in the standard or large cages with respect to weight gain, percent of time standing, and percent of time sleeping. Statistically significant (p less than 0.05) differences were found for percent of time sitting (standard cages 12.7%; large cages 9.4%) and percent of time lying (standard cages 6.6%; large cages 8.3%); however, the differences were not large enough to be of any practical concern. Transient patterns of response over 13-week periods of the study were essentially the same (statistically verified) for dogs in either size cage. Also statistical results showed that there was no significant carryover (residual) effect associated with any of the parameters measured. No beneficial or adverse effects were noted that could be related to the size of the two cages. The size of the standard cage appeared adequate for laboratory beagle dogs and no advantage was found when the dogs were in larger cages with respect to behavior, patterns of activity, or health.