Tampering with Food by Laying Hens
Tampering with Food by Laying Hens
复制标题
蛋鸡篡改食物
DOI：
10.2508/chikusan.56.994
复制
发表时间：
1985
期刊：
影响因子：
--
通讯作者：
T. Yoshimoto
中科院分区：
文献类型：
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作者：
Toshio Tanaka;T. Yoshimoto
近年来，人们在定量表达鸡的摄食行为方面做了许多努力。母鸡在喂食器中的头部运动通常被认为是进食的指示。例如，ITO和MIMURA1)在喂食器的两侧安装了近红外探测器，与数字时钟开关同步的光束被母鸡的头或脖子打断的累积时间被认为是喂食总时间的指标。然而，有人说，关在笼子里的母鸡花相当多的时间只是摆弄或玩弄它们的食物。本文的作者还认为，有些人啄食可以说只是为了消遣。因此，必须进行进一步的研究，以设计一种方法来证明母鸡确实存在这种行为。我们设计了一种方法，利用vtr系统来区分实际食用和简单的食物篡改。
In recent years, many efforts have been made to express the feeding behavior of chickens quantitatively. Head movement of hens while in the feeder has usually been regarded as an indication of eating. For example, ITO and MIMURA1) equipped both sides of a feeder with near-infrared detectors, and the cumulative time in which a beam synchronized with the switch of a digital clock was interrupted by the head or neck of a hen was considered an index of the total time spent in feeding. It has been said, however, that caged hens spend considerable time just tampering or playing with their food2). The present authors are also of the opinion that some pecking at feed is simply pecking for leisure, so to speak3). Consequently, further research must be carried out to devise a means which would demonstrate that such behavior actually exists on the part of hens. We have devised a method utilizing a VTR-system for distinguishing actual eating from simply food tampering.