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作 者:申李琰[1] 萨仁娜[2] 牛晋国[1] 刘文革 李惠龙[1] 杨文超
机构地区:[1]山西省农业科学院畜牧兽医研究所,太原030032 [2]中国农业科学院北京畜牧兽医研究所,北京100193 [3]山西大晋农农牧科技有限公司,太原030032
出 处:《中国畜牧兽医》2017年第5期1565-1570,共6页China Animal Husbandry & Veterinary Medicine
基 金:山西省科技攻关项目(20140311021-2);山西省农业科学院院重点攻关项目(YGG1609);现代农业产业技术体系建设专项资金(CARS-42)
摘 要:试验旨在对商品肉鸡层叠式立体养殖模式的环境参数进行监控,分析不同季节笼养肉鸡环境参数的差异,为科学养殖提供数据支撑。选择规模化肉鸡养殖场的同一栋鸡舍,在秋季和冬季饲养周期中,采用分次多点测量法,连续监测3~6周龄肉鸡舍内温度、湿度和空气质量,测定点均匀分布在舍内4个位置,比较秋季和冬季舍内环境参数的变化。结果显示,在肉鸡生长后期,冬季舍内环境温度略高于秋季,差异不显著(P>0.05);秋季舍内湿度显著高于冬季(P<0.05),两个季节的温湿度均可满足不同日龄肉鸡生长需求。有害气体和微生物检测结果显示,冬季舍内氨气浓度略高于秋季,差异不显著(P>0.05);冬季舍内二氧化碳浓度显著高于秋季(P<0.05);同时冬季舍内空气微生物总菌数显著高于秋季(P<0.05)。层叠式立体笼养肉鸡舍内温度在不同季节可保持恒定;在冬季饲养期,舍内湿度降低,二氧化碳浓度升高,空气微生物总菌数升高。因此,冬季饲养肉鸡在做好保温的同时应适当增加通风换气。The study was conducted to detect the indoor environmental quality parameters of broiler house with three-overlap cages and analyze the differences in winter and autumn.In the process of feeding,the same farming house in the same farm was chosen to carry out the test.The indoor ambient temperature,humidity and the air quality were determined in chicken house in different seasons.The measure points were distributed in 4different positions in the house.The experiment period was from 3to 6weeks of broilers.The results showed that there was no significant difference in the ambient temperature between autumn and winter during experimental period(P0.05).The ambient temperature in the house in winter was slightly higher than in autumn.The humidity in autumn was significantly higher than that in winter(P0.05).The temperature and humidity in two seasons could meet the requirements of broiler growth.There was no significant difference in ammonia concentration between autumn and winter,while ammonia level in winter was slightly higher than that in autumn.The carbon dioxide in the house was significantly higher in winter than that in autumn(P0.05).The total number of airborne bac-teria in winter was significantly higher than that in autumn(P0.05).The indoor temperature kept constant in autumn and winter seasons in closed poultry house.In winter,the humidity was reduced,the carbon dioxide concentration was increased,and the total number of bacteria in the air was increased.So,the ventilation should increase at the same time of heating in winter.
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