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Influence of lighting regime and Nutrient Density on Welfare of Yellow-feather Broiler Chickens

Influence of Lighting Regime and Nutrient Density on Welfare...

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中国畜牧兽医学会家禽学分会第九次代表会议暨第十六次全国家禽学术讨论会

作者： TANG Shi BAI Hao QIN Ning LIU Nian HUA Dengke WEN Jie LIU Ranran ZHAO GuiPing ZHENG Maiqing CHEN JiLan State Key Laboratory of Animal Nutrition Institute Animal ScienceCAAS College of Animal Science and Technology Yangzhou University

1 INTRODUCTION lighting is a powerful exogenous factor in control of many physiological and behavioral *** status is an important factor affecting broiler health(Kidd,2004;Brickett et al.,2007),and can indirectly affect the *** this experiment was conducted to evaluate the effects of lighting regime and nutrient density on welfare of broiler chickens.

关键词： broiler chickens lighting regime nutrient density welfare

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Influence of lighting regime and Nutrient Density on Performance and Welfare of Broiler Chickens

Influence of Lighting Regime and Nutrient Density on Perform...

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中国畜牧兽医学会动物营养学分会第十一次全国动物营养学术研讨会

作者：唐诗陈继兰 Institute Animal science CAASBeijin 100193

lighting schedule and nutrient density are both crucial elements for broiler *** can affect broiler performance and welfare,which can be indicated from their behavior rhythm.(Purpose) So this experiment is conducted to evaluate the effects of lighting regime and nutrient density on growth performance and welfare of broiler chickens.(Methods) A total of 1 080 day-old Beijing-You chickens were used with a 3×3 factorial arrangement of *** birds were given 23 hours day-length from 0 to 7 d of age to ensure adaptation to the research *** 8 d,the experimental treatments consisting of three lighting regimes will be randomly assigned to four *** three lighting regimes are 23L;1D(continuous),16L;8D(simulating natural lighting) and 16L;8D(intermittent,3L;ID).The three treatments of nutrient density are high[starter diet;12.33 MJ/kg apparent metabolisable energy(AME),21.40%crude protein(CP);finisher diet;13.17 MJ AME/kg,16.30%CP],middle[starter diet:12.12 MJ/kg apparent metabolisable energy(AME), 21.00%crude protein(CP);finisher diet;12.96 MJ AME/kg,16.00%CP]and low(L,starter diet;11.91 MJ AME/kg,20.60%CP;finisher diet;12.75 MJ AME/kg,15.80%CP) energy and protein levels. All chickens were randomly allocated to 12 treatments with each treatment comprising 4 replicates of 30 chickens. (Results) lighting schedules showed no difference in growth Performance at the end the experiment(P > 0.05).Birds on low density diets had higher feed conversion ratio(FCR)(P regime and nutrient density for the health and efficient production of broilers.

关键词： Broiler Chickens lighting regime Nutrient Density welfare

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