ケージ飼育における産卵鶏の行動と止り木の利用

概要

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The objective of the present study was to clarify when and how hens use perches in cages. The experimental cage (3360 cm^2) with 2 feeders, one at the front and the other at the back, was made by modifying a commercial cage. A drinker was attached to each feeder. Two wooden perches were installed 100 mm and 400 mm from the front. One bird was housed in the cage and its behavior was videotaped for 24 h. The birds were able to perform all activities (feeding, drinking, preening, resting, etc.) both on the floor and on perches. Sixteen birds were used in total. Each bird tended to eat and drink on one side only. Thirteen hens consumed most of their water standing on the floor (P<0.001). Ten of them consumed most of their feed while standing (P<0.01 or P<0.001). Only 3 hens consumed most of their feed and water standing on the perch (P<0.001). Preening and resting were observed everywhere in cages in the light period. In the dark period, 12 birds spent most of time for roosting on the perches, and only 4 birds roosted on the floor. Jpn. J. Livest. Management, 32(1) : 25-30. 1996. Received January 23,1996 Accepted March 6,1996
日本家畜管理学会の論文
1996-07-23