Effect of different density, tier and area on the behavior in layers

in International Symposium (poster summary), 國際研討會(摘要海報發表)
標題Effect of different density, tier and area on the behavior in layers
出版類型國際研討會(摘要海報發表)
出版年度2008
AuthorsHuang, 黃乃涵, & Liang Chou Hsia 夏良宙
出版日期Sep 24 2008 12:0
會議地點Hanoi
其他編號0000
中文摘要

The objective of the study was to determine the effect of different density, tier, area in wet pad layer house on the behavior and production of layers. Hundred and eight 47-weeks old Hisex layers were randomly allocated into different treatments, including 3 density (low, medium and high density), 2 locations (wet pad and fan), 2 tiers cages (1st and 3rd tier) and 2 types of cages of different sizes factorial design. For feeding management, using automatic feeding system, water was provided ad libitum, egg production was recorded daily. The duration of the study was 6 weeks in total, behavior observation was done once per week. The result of the study indicated that laying rate tended to reduce as the density increased. Between 06:00 until 14:00, the feed intake and drinking were lower than 14:00 until 22:00 while laying and birdcall tended to be higher. The panting rate tended to increase as the density increased, moving and grooming were relatively reduced. The rate for panting and sit-slanting of the fan side were significantly higher than wet pad side. Increasing the density would lead to reduced laying rate, increased of panting, lesser grooming and moving from layers kept in cages.

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