Prenatal light exposure affects early feather-pecking behaviour in the domestic chick
نویسندگان
چکیده
منابع مشابه
Analysis of severe feather pecking behavior in a high feather pecking selection line.
Even though feather pecking (FP) in laying hens has been extensively studied, a good solution to prevent chickens from this behavior under commercial circumstances has not been found. Selection against FP behavior is possible, but for a more effective selection across different populations, it is necessary to characterize the genetic mechanism associated with this behavior. In this study, we us...
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INTRODUCTION The length of incubation and thus, the time to hatch, significantly vary in chick embryos (Gallus gallus) with light exposure conditions. Continuous incubation in the dark throughout embryogenesis (24D) delays hatching by 1-2 days (~5-10% of total gestation), as compared to incubation in daily periodic light (12 hours of light, 12L) or continuous bright light (24L). Do such light-i...
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The aim of this experiment was to study the relationship between feather pecking and ground pecking in laying hens and the effect of group size on feather pecking behaviour. Hisex White hens were kept in floor pens in group sizes of 15, 30, 60 and 120 birds, each with four replicates. Behavioural observations were performed at four different ages and focused on the number of feather pecks and a...
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A selection experiment was initiated in 1996 in which selection for (HP line) and against (LP line) feather pecking was performed. The foundation stock was a White Leghorn layer strain established in 1970 and maintained since then as a random bred control line at the Institute. Six hatches were produced over three generations. At the age of 68 weeks (generation 0, 1996), 35 weeks (generation 1,...
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Objective(s): To evaluate whether prenatal exposure to TAK242 affects childhood autism in the offspring in animal models of autism spectrum disorder (ASD). Materials and Methods:The pregnant rats were pseudo-randomly divided into three groups, the ASD model group, the TAK242 treatment group, and the control group. The ASD model was constructed by injecting IP with LPS. The blood samples from 1-...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2004
ISSN: 0003-3472
DOI: 10.1016/j.anbehav.2003.10.009