Light intensity of 5 or 20 lux on broiler behavior, welfare and productivity
نویسندگان
چکیده
منابع مشابه
Effect of Varying Light Intensity on Welfare Indices of Broiler Chickens Grown to Heavy Weights
The effects of varying light-intensity on ocular, immune, fear and leg health of broiler chickens grown to heavy weights under environmentally controlled conditions were evaluated. Four identical trials were conducted with two replications per trial. In each trial, 600 Ross 308 chicks were randomly distributed into 10 environmentally controlled chambers (30 males and 30 females chicks/chamber) ...
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Broiler chicks are transported to production sites within one to 2 d post-hatch. Possible effects of this transportation are poorly understood and could vary among chicks from breeder flocks of different ages. The aim of the present study was to investigate the effects of transportation duration and parental flock age on chick welfare, productivity, and quality. After hatch in a commercial hatc...
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Day length and intensity are commonly manipulated aspects of the light environment in commercial broiler production. Both influence circadian rhythms, but it is unclear if they do this independently or synergistically. The effect of light:dark (20L:4D, 16L:8D) and intensity contrasts (1 lx:0.5 lx, 200 lx:0.5 lx) on broiler behavior and health (n=1,004, 4 replicates/treatment) was evaluated. Act...
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چکیده ندارد.
15 صفحه اولThe role of 5-HT2A and 5-HT2C receptors on harmalineinduced eating behavior in 24-h food-deprived broiler cockerels
This study was designed to examine the effects of intracerebroventricular (ICV) injection of ketanserin(5-HT2a receptor antagonist) and SB242084 (5-HT2c receptor antagonist) on harmaline induced feeding anddrinking response in 24-h food-deprived (FD24) broiler cockerels. At first, guide cannula was surgicallyimplanted in the right lateral ventricle of chickens. In experiment 1, birds were injec...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 2017
ISSN: 0032-5791
DOI: 10.3382/ps/pew423