LED光源改善鸡舍环境及肉鸡生产性能  

LED illuminant improving broilers house environment and growth performance

作　　者：石志芳 席磊[2] 姬真真[2] 程璞 Shi Zhifang;Xi Lei;Ji Zhenzhen;Cheng Pu(College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China;College of Automation, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China)

机构地区：[1]河南牧业经济学院动物科技学院,郑州450046 [2]河南牧业经济学院自动化学院,郑州450046

出　　处：《农业工程学报》2017年第24期222-227,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：河南省重大科技专项(141100110800);河南省科技开放合作项目(152106000015);河南牧业经济学院科技创新团队资助项目(HUAHE2015006)

摘　　要：探讨全封闭饲养条件下,LED光源对肉鸡生产性能,养分表观消化率和鸡舍空气中NH3、CO2、粉尘浓度,以及空气微生物含量的影响。试验于2017年3月2日至3月30日在河南省某农业集团一大型肉鸡场进行。选用健康状况良好、体况一致的1日龄白羽肉鸡240只,采用单因子完全随机试验设计,分为2个处理组,一组采用暖白色光LED灯光源照明为试验组,另一组采用普通暖白色荧光灯光源照明为对照组。试验期间详细观察肉鸡生产情况,分别计算平均日采食量、平均日增质量、料质量比、发病率以及死淘率。于肉鸡8、15、22和28日龄当日全收粪法测定粗蛋白、粗脂肪、钙和磷的表观消化率。试验期间每天08:00,14:00和20:00,采用光化学方法分别在两栋鸡舍内测量NH3和CO2浓度,测量点分布依据五点法,测量高度为0.5 m。分别对8、15、22和28日龄的鸡舍,采用质量法测定粉尘含量,平板沉降法测定空气微生物含量。结果表明,与荧光灯相比,LED光源对8~22日龄肉鸡的生产性能、养分代谢及其生存环境质量没有不利影响。LED光源有利于提高22~28日龄肉鸡的平均日采食量和平均日增质量,分别比荧光灯光源下的肉鸡显著增加了13.13%和13.23%(P<0.05)。LED光源有利于提高22~28日龄肉鸡对饲料中粗蛋白,钙和磷的表观消化率,22日龄时,分别比荧光灯鸡舍的肉鸡显著提高了9.45%,14.90%和7.48%(P<0.05),28日龄时分别提高了7.30%,6.78%和8.29%(P<0.05)。试验期间LED光源鸡舍内肉鸡发病率为2.45%,显著低于荧光灯鸡舍3.57%的发病率(P<0.05)。LED光源鸡舍内肉鸡死淘率为1.18%,显著低于荧光灯鸡舍2.36%的死淘率(P<0.05)。同时,LED光源鸡舍的25日龄以后的NH3浓度、22日龄以后的粉尘和微生物浓度均显著低于荧光灯光源鸡舍(P<0.05)。因此,LED光源有利提高肉鸡的生产性能和改善肉鸡生活空间的空气环境质量,加之LED光源在养殖生产上的应In order to provide theoretical support for the application of LED illuminant in the scale raising of broilers,the effects of LED light sources on broilers growth performance,apparent nutrient digestibility and the content of NH3,CO2,dust and microorganism of house air had been explored in this paper.One-factor completely random design was used in this study.A total of240one-day-old white feather broilers with good health were randomly distributed into two groups with4replications per group and30birds per replication.Trial group was illuminated with warm white LED-light,the control group was illuminated with warm white fluorescent lamps.The chicken were fed in the same conditions,and the growth conditions including the feed intake,daily gain,feed conversion ratio,morbidity and mortality were observed and determined.Total feces were collected for the apparent nutrient digestibility test of crude protein,crude fat,Ca,and P at the8th,15th,22th,and28th day,respectively.And then the content of dust and microorganism were measured by gravimetric and plate sedimentation method,respectively.The content of NH3and CO2in the broilers house were detected on five points at0.5m high using photochemical method in every day at08:00,14:00and20:00.Results showed that compared with the fluorescent lamps,LED light sources were no adverse effects on growth performance,nutrient metabolism and house environmental quality of8to20days old broilers.LED light could improve the feed intake and daily gain of22to28days old broilers significantly,which were increased by13.13%and13.23%,respectively(P<0.05)compared with that of the fluorescent lamp group.LED light source was beneficial to increase the average daily intake and average daily increase quality of the22-28days old broilers,compared with the fluorescent lamp,which were significantly increased by13.13%and13.23%,respectively(P<0.05).LED light source could also improve the apparent digestibility of crude protein,calcium and phosphorus in the22to28days old chicken;In the22th day,it was si

关 键 词：光 养分 环境质量控制 LED光源 密闭式肉鸡舍 白羽肉鸡 生产性能 表观消化率 

分 类 号：S831.7[农业科学—畜牧学]