家畜生态学报2023，Vol.44Issue(12)：78-84,7.DOI:10.3969/j.issn.1673-1182.2023.12.014
夏季南方妊娠猪舍垂直通风设计及测试分析
Design and Test Analysis of Vertical Ventilation for Gestation Piggery in South China in Summer
摘要
Abstract
To solve a series of problems in the process of vertical ventilation design such as design of air distribution,ventilation rate calculation and environmental control equipment,this experiment used the theoretical calculation to design a gestation piggery with vertical ventilation in Guangxi autonomous re-gion,and the theoretical calculation model and the operation effect of the ventilation mode were verified by field measurement.The results showed that compared with horizontal ventilation,vertical ventilation from top to bottom can effectively solve the problems of large temperature difference,uneven temperature dis-tribution,and high NH3 and CO2 concentration in the piggery.In this ventilation mode,the overall tem-perature in the piggery in summer was controlled between 25.4 ℃ and 31.9 ℃,and the wind speed was be-tween 0.8 m/s and 1.0 m/s,the distribution of the two is relatively uniform.The average concentration of ammonia(NH3)and carbon dioxide(CO2)is lower than the limit level of air pollutant concentration of gestation piggery stipulated by the national standard.The average temperature and humidity index(THI)was between 68 and 76,and the pigs were in the state of no heat stress or mild heat stress,and the skin temperature and respiratory rate of pigs were good,which met the physiological requirements of pigs in summer heat environment.In conclusion,the theoretical calculation model designed in this paper is cor-rect,and the vertical ventilation model can effectively improve the piggery environment and provide a rela-tively favorable growing environment for pigs.关键词
垂直通风/设计/妊娠猪舍/空气质量/生理指标Key words
vertical ventilation/design/gestation piggery/air quality/physiological indexes分类
农业科技引用本文复制引用
胡孝艳,解天,李修松,李保明,崔维浩,杨卫平,杨玉鹏..夏季南方妊娠猪舍垂直通风设计及测试分析[J].家畜生态学报,2023,44(12):78-84,7.基金项目
国家重点研发计划资助(2018YFD0500700) （2018YFD0500700）
国家自然科学基金(31960683) （31960683）
