家畜生态学报2017，Vol.38Issue(7)：32-37,6.
不同光照节律对AA肉鸡生产性能、胴体性能和福利的影响
Effects of Lighting Schedules on Production, Carcass Characteristics, and Welfare of AA Broilers
摘要
Abstract
This experiment was conducted to study the effects of four photoperiods on production,carcass characteristics,and welfare of AA broilers.A total of 480 one-day-old AA broiler chicks were randomly divided into 4 treatments,which were replicated 4 times.Four lighting programs were initiated at 8 d of age: continuous lighting (23L:1D),simulated natural lighting (16L:8D),16L+2L:6D,and variable lighting (decrease-increase).Light intensity was 5 lx.The present study found that in the brooding and growing period,BW was not affected by treatments (P>0.05);feed conversion ratio was higher in the continuous lighting group than those in other groups (P=0.0004).Mortality from 4 to 6 wk and 1 to 6wk was the greatest under the continuous lighting (P=0.01,P=0.004).Breast muscle weight and percentage of 16L+2L:6D groups were higher than that of the continuous and 16L:8D group (P=0.01,P=0.0001).Abdominal fat deposition and percentage were lower in 16L:8D group (P=0.03.P=0.0001).Lighting schedules did not affect other carcass characteristics (P>0.05).Birds provided with continuous lighting had a higher gait score than that of other treatments,which indicated a worse leg health condition.This study confirmed that 23L:1D lighting schedule was not beneficial for the AA broilers production.关键词
光照节律/AA肉鸡/生产性能/胴体性能/福利Key words
lighting schedule/AA broiler/production/carcass characteristics/welfare分类
农业科技引用本文复制引用
石雷,孙研研,李云雷,陈超,陈余,陈继兰..不同光照节律对AA肉鸡生产性能、胴体性能和福利的影响[J].家畜生态学报,2017,38(7):32-37,6.基金项目
现代农业产业技术体系建设专项资金(CARS-42) （CARS-42）
中国农业科学院科技创新工程(ASTIP-IAS04) （ASTIP-IAS04）
