中国畜牧兽医2017，Vol.45Issue(10)：3106-3112,7.DOI:10.16431/j.cnki.1671-7236.2017.10.039
舍饲散栏有窗奶牛合温热环境的年动态研究
Annual Dynamic Research of Thermal Environment of Dairy Cowshed in Free Stall-feeding with Window
摘要
Abstract
The objective of this study was to investigate the annual dynamic of thermal environment of dairy cowshed in free stall-feeding with window.Through continuous detection of the dairy cowshed for 12 months of air temperature,relative humidity and wind speed,the annual variations in these 3 parameters were analyzed.The results indicated that the indoor air temperature was high at noon and low in both the morning and evening,while the opposite tendency in the relative humidity was observed.The indoor air temperature was above 25 ℃ for 7.5 to 10 h daily in summer,especially in June,the indoor air temperature was higher than outdoor air temperature.In December,the indoor wind speed was almost 0 m/s.From the comprehensive index analysis,during the period of 09 ∶ 30 ～ 19 ∶ 30 in summer,the temperature humidity index (THI) was above 72,which made dairy cows suffer from mild heat stress.The wind chill temperature (WCT) was not below-10 ℃ in winter,and the dairy cows did not suffer from cold stress.In conclusion,not only heatstroke prevention in summer but also ventilation enhanced in winter for this dairy cowshed should be paid more attention.关键词
奶牛/温热环境/气温/相对湿度/风速Key words
dairy cow/thermal environment/air temperature/relative humidity/wind speed分类
农业科技引用本文复制引用
单春花,陈伟,李宏双,邱殿锐,郭建军,刘泽,高玉红..舍饲散栏有窗奶牛合温热环境的年动态研究[J].中国畜牧兽医,2017,45(10):3106-3112,7.基金项目
河北省现代农业产业技术体系奶牛产业创新团队建设专项资金 （）
承德市科学技术与发展计划项目(20157011) （20157011）
