循环间歇光照对21~28周龄罗曼粉蛋鸡生产性能、蛋品质及血液指标的影响  

Effects of Cyclic Intermittent Lighting on Performance,Egg Quality and Blood Indexes of Roman Laying Hens Aged from 21 to 28 Weeks

作　　者：张宇[1] 朱润 张誓育 刘朔 米见对[1] 廖新俤[1] ZHANG Yu;ZHU Run;ZHANG Shiyu;LIU Shuo;MI Jiandui;LIAO Xindi(College of Animal Science,South China Agriculture University,Guangzhou,Guangdong 510642,China)

机构地区：[1]华南农业大学动物科学学院,广东广州510642

出　　处：《家畜生态学报》2023年第1期45-50,共6页Journal of Domestic Animal Ecology

基　　金：广州市科技计划项目-基础与应用基础研究项目(间歇光照下蛋鸡肠道菌群的昼夜节律及其与宿主的互作机制);现代农业产业技术体系建设专项资金(CARS-40)。

摘　　要：试验旨在探讨两种循环间歇光照对21~28周龄罗曼粉蛋鸡生产性能、蛋品质及血液指标的影响。将270只罗曼粉蛋鸡随机分为3个处理,对照组(C)采用“16L:8D”的光照程序,试验组1(T1)采用“16h[3h-L/1h-D]:8D”的光照程序,试验组2(T2)采用“16h[45 min-L/15min-D]:8D”的光照程序。试验期间测定蛋鸡的生产性能和蛋品质。结果显示:在21~28周龄3组间的采食量、产蛋率、平均蛋重、料蛋比和蛋品质均无显著差异(P>0.05),但在25~28周龄T1组和T2组的日采食量分别较C组显著降低了3.13%和2.48%(P<0.05)。T2组血清中甘油三酯含量分别较C组和T1组显著降低了22.18%和15.18%(P<0.05)。研究表明:与“16L:8D”光照程序相比,采用“16 h[45min-L/15 min-D]:8D”循环间歇光照程序,对在21~28周龄蛋鸡的采食量、产蛋率、料蛋比和蛋品质均无显著影响,但能降低在25~28周龄蛋鸡的日采食量,同时能显著降低血清中甘油三酯的含量。The experiment was conducted to explore the effects of cyclic intermittent lighting on performance,egg quality and blood indexes of Roman laying hens aged from 21 to 28 weeks.270 Roman laying hens were randomly divided into three treatments,the control group(C)adopted the illumination program of“16L:8D”,the experimental group 1(T1)the illumination program of“16h[3h-L/1h-D]:8D”and the experimental group 2(T2)the illumination program of“16h[45min-L/15min-D]:8D”.The production performance and egg quality of laying hens were measured during the experiment.The results showed that there was no significant difference in feed intake,laying rate,feed-egg ratio,and egg quality among the three groups aged from 21 to 28 weeks(P>0.05).However,the daily feed intake of T1 and T2 was significantly lower than that in group C by 3.13%and 2.48%aged from 25 to 28 weeks,respectively(P<0.05).The serum triglyceride content in T2 was significantly lower than that in group C and T1 by 22.18%and 15.18%,respectively(P<0.05).The results showed that compared with the“16L:8D”lighting program,“16h[45min-L/15min-D]:8D”cyclic intermittent lighting program has no significant effect on the daily feed intake,laying rate,feed-egg ratio and egg quality of laying hens aged from 21 to 28 weeks,but it can reduce the daily feed intake of laying hens aged from 25 to 28 weeks,and significantly reduce the serum triglyceride content.

关 键 词：间歇光照 生产性能 产蛋率 蛋品质 血液指标 

分 类 号：S831[农业科学—畜牧学]