权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

STUDY ON BIOLOGICAL RHYTHM AND FEEDING BEHAVIOR IN DAIRY CATTLE

奶牛生物节律和采食行为的研究

基本信息

批准号：
08660323
负责人：
KASHIWAMURA Fumiro
金额：
$ 1.6万
依托单位：
OBIHIRO UNIVERSITY OF AGRICULTURE AND VETERINARY MEDICINE
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08660323/
关键词：
DAIRY CATTLE BIOLOGICAL RHYTHM FEEDlNG BIHAVIOR SPECTRUM ANALYSIS 菜食行動牛

项目摘要

The purpose of this study was to examine an endogenous rhythm in cows, as known as free-running rhythm which appeared under no-external stimuli. This study was conducted under two different environmental conditions. One of which was the environmental control room and the other was the normal cow shed. The environmental control room test was consisted of tow periods. The 1^<st> period : A dry Holstein cow was tethered in the environmental control room that was insulated from the outside external stimuli so called zejtgeberfor one month. The room was continuously lighted as 60 LuX.The 2^<nd> period : Twelve hours cycle of light and dark period was tested for nine days. The normal cow shed test was consisted of three period. The 3^<rd> period : A Holstein heifer with rumen fistula was kept in a pen inside a barn for 24 days. The animal was allowed free access to the automatic feeder that was used during the whole experimental periods. The 4^<th> period : The same animal of the previous pe … More riod was allowed to access to the feeder from 19 : 00 to 01 : 00 in a day. The 5^<th> period : The allowing time of eating was sifted between 00 : 00 and 06 : 00 in a day. The results were summarized as follows :l. The distinct cyclic behavior pattern in a day was not observed on the cow under the condition of no-external stimuli.2. The light and dark cyclic change was influenced apparently to the behavior of the cow. The duration of standing and eating in a day were increased during the light period, whereas the duration of lying was increased significantly during the dark period.3. The response of cows to the light and dark cycle appeared more clear under the natural stimulus condition. The animal acted more vigorously during the light period (day time) and she took a more rest during the dark period (night time).4. The MEM spectrum analysis that we developed for finding a behavioral cyclic change showed the almost three hours cyclic change of standing and lying position and body temperature on a cow.According to these results, cows has the biological and behavioral rhythm of about three hours cycle. However, the rhythm is not so strict, the behavior of cow was easily modified by the external stimuli. Less

本研究的目的是研究奶牛的内源性节律，即在无外界刺激下出现的自由奔跑节律。这项研究是在两种不同的环境条件下进行的。一个是环境控制室，另一个是普通的牛棚。环境控制室试验分为两个阶段。1^<st>周期：一头干荷斯坦奶牛被拴在环境控制室里，与外界刺激隔绝一个月，也就是所谓的zejtgeber。房间的灯光一直保持在60勒克斯。2^<和>周期：12小时的明暗周期被测试了9天。正常牛棚试验分为三个阶段。3^< 1 d期：将1头患有瘤胃瘘管的荷斯坦小母牛放在牲口棚内的围栏内饲养24 d。允许动物自由使用整个实验期间使用的自动喂食器。4^< >周期：同一只动物，在一天的19点到01点之间，允许更多的周期进入喂食器。5^< >期：允许进食的时间在一天的00点到06点之间筛选。结果总结如下：1。在无外界刺激条件下，奶牛在一天内没有明显的循环行为模式。明暗循环变化对奶牛的行为有明显的影响。在光照期，站立和进食的时间明显增加，而在黑暗期，躺着的时间明显增加。在自然刺激条件下，奶牛对明暗循环的反应更为明显。动物在光照期（白天）活动更活跃，在黑暗期（晚上）休息得更多。我们为寻找行为循环变化而开发的MEM谱分析显示，奶牛的站立和躺姿以及体温的循环变化几乎有三个小时。根据这些结果，奶牛的生理和行为节律周期约为3小时。然而，节奏并不严格，奶牛的行为很容易受到外界刺激的改变。少