改善侧墙小窗密闭性对夏季网上平养肉鸡舍环境参数的影响  

Effect of improving small window airtightness in side walls onthe environmental parameter of summer net-rearingin closed broiler houses

作　　者：刘俊泽 张杰 李晓庆 李圆 李盛 李春梅[1] LIU Junze;ZHANG Jie;LI Xiaoqing;LI Yuan;LI Sheng;LI Chunmei(Research Center for Livestock Environmental Control and Smart Production,College of Animal Science and Technology,Nanjing Agriculture University,Nanjing 210095,China)

机构地区：[1]南京农业大学动物科技学院家畜环境控制与智慧生产研究中心,江苏南京210095

出　　处：《畜牧与兽医》2024年第5期28-34,共7页Animal Husbandry & Veterinary Medicine

基　　金：江苏现代农业(肉鸡)产业技术体系环境控制创新团队项目[JATS(2023)437,JATS(2022)480]。

摘　　要：旨在研究采用密封胶条对夏季鸡舍侧墙老化小窗密闭性进行优化改善,观察对鸡舍环境参数和肉鸡死亡数量的影响。选取饲养数量、日龄及饲养管理模式和鸡舍构造均相同的两栋网上平养肉鸡舍,一栋为对照组(Con),不进行任何处理;另一栋为处理组(Tre),侧墙小窗采用密封胶条进行密闭性改造,每天8:00,10:00,12:00,14:00和16:00,对鸡舍不同位置点的负压、风速和温湿度进行监测,连续监测11 d。结果显示:与Con组相比,Tre组鸡舍中部监测点的风速显著升高(P<0.05),但是各监测点的负压没有显著变化;Tre组鸡舍平均温度和平均相对湿度均未出现显著变化,但是在试验后期,Tre组鸡舍最高相对湿度出现了显著下降(P<0.05);整体来看Tre组鸡舍肉鸡死亡数量出现了显著下降(P<0.05)。结果表明:通过改善鸡舍侧墙小窗的密闭性可以增加夏季网上平养肉鸡舍中部风速,降低试验后期的相对湿度,减少肉鸡的死亡数量。研究结果为老旧鸡舍夏季降温提供了一定参考依据。With the expansion of the broiler industry and the improvement of its intensification level,some chicken houses are unable to meet the development needs of the industry due to aging equipment.This experiment optimized the aging small windows in the side walls of the chicken house using sealant strips to improve the airtightness of the windows.And the impact on the environmental indicators of the chick-en house and the mortality of broiler chickens were observed.Two broiler chicken houses with the same number of chickensat the same age and under the same feeding management mode,and of the same structure were selected for the experiment.One house served as the control group(Con)without any treatment,while the treatment group(Tre)had modifications made to the small windows.The environmental indi-cators at different locations in the chicken houses were monitored at five time points:8:00,10:00,12:00,14:00,and 16:00,daily.The results showed that improving the airtightness of the side wall windows significantly increased the wind speed at the central monitoring point in the chicken house(P<0.05),but had no significant impact on the negative pressure at each monitoring point.Compared with the control group,the treatment group did not show significant changes in average temperature and humidity.However,during the late test peri-od,the treatment group exhibited a significant decrease in maximum humidity(P<0.05).Overall,the treatment group showed a significant decrease in the number of broiler chicken deaths.The results of the experiment indicated that improving the airtightness of the side wall win-dows increased wind speed in the central area of the chicken house during summer,reduced the maximum humidity in the late test period,and decreased broiler chicken mortality.The experiment provided reference basis for the maintenance of old chicken houses equipment and the alleviation of summer heat stress in broiler chickens.

关 键 词：侧墙小窗 风速 负压 温湿度 

分 类 号：S831[农业科学—畜牧学]