| 夏季鸡舍屋顶隔热改善舍内热环境及蛋鸡生产性能 |
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| 引用本文： | 王阳,郑炜超,石海鹏,涂江,李保明.夏季鸡舍屋顶隔热改善舍内热环境及蛋鸡生产性能[J].农业工程学报,2018,34(17):207-213. |
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| 作者姓名： | 王阳 郑炜超 石海鹏 涂江 李保明 |
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| 作者单位： | 中国农业大学农业部设施农业工程重点实验室;中国农业大学水利与土木工程学院;北京市畜禽健康养殖环境工程技术研究中心 |
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| 基金项目： | 国家蛋鸡产业技术体系（CARS-40）；北京市基地建设和人才培养专项（Z171100002217018）。 |
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| 摘 要： | 鸡舍屋顶夏季所接收辐射热最多,屋顶内表面与舍内空气对流换热作用较强,舍内垂直温差加剧,造成局部热应激影响蛋鸡生产性能。为探究屋顶隔热对蛋鸡舍内热环境及蛋鸡生产性能的影响,该文对比研究试验舍(100 mm保温玻璃棉毡彩钢板屋顶)与对照舍(200 mm加气混凝土屋顶)2种不同材料屋顶对鸡舍内环境及生产性能的影响,并讨论鸡舍屋顶成本与养鸡经济效益的关系。结果表明:1)试验舍内温湿度波动比对照舍内小,试验舍内平均温度比对照鸡舍低2.3℃,对照舍内温度空间上呈垂直分布且温差大于3℃,由地面向屋顶逐渐升高且距离地面3.2 m高度水平面温度与0.8、1.6、2.4 m高度水平面温度差异极显著(P0.01);2)试验舍内热应激程度低于对照舍,对照舍内温湿指标正常水平比试验舍内低15.7%,轻度热应激程度高12.1%,中度热应激程度高1.7%,高度热应激程度高0.9%。对照舍内3.2 m平面上蛋鸡受到不同程度的热应激,高度热应激占2.5%;3)试验舍蛋鸡产蛋率比对照鸡舍高1.5%,平均蛋质量高1.9 g。对照舍3.2 m平面上蛋鸡产蛋率与距离地面0.8、1.6、2.4 m平面蛋鸡产蛋率差异极显著(P0.01),周死淘率差异显著(P0.05);试验舍和对照舍0.8 m平面上蛋鸡平均蛋质量最高,对照舍底层0.8 m平面上蛋鸡平均蛋质量与距离地面1.6、2.4、3.2 m平面蛋鸡的平均蛋质量差异极显著(P0.01),但破蛋率之间差异不显著(P0.05);4)对照舍屋顶的冷负荷峰值是试验舍屋顶冷负荷峰值的2.1倍,对照舍屋顶内表面温度比试验舍高3℃。试验鸡舍采用隔热屋顶1~1.5 a可收回投入成本,维持舍内热环境以提高蛋鸡养殖户的收入。该研究可为集约化密集型饲养模式下蛋鸡舍的环境调控及节能措施提供参考。
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| 关 键 词： | 辐射 温度 湿度 热应激 冷负荷 产蛋性能 死淘率 |
| 收稿时间： | 2018/4/10 0:00:00 |
| 修稿时间： | 2018/7/11 0:00:00 |
Roof insulation improving thermal environment and laying performance of poultry houses in summer |
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| Wang Yang,Zheng Weichao,Shi Haipeng,Tu Jiang and Li Baoming.Roof insulation improving thermal environment and laying performance of poultry houses in summer[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(17):207-213. |
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| Authors: | Wang Yang Zheng Weichao Shi Haipeng Tu Jiang and Li Baoming |
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| Institution: | 1. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China; 2.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 3. Beijing Engineering Research Center for Animal Healthy Environment, Beijing 100083, China,1. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China; 2.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 3. Beijing Engineering Research Center for Animal Healthy Environment, Beijing 100083, China,1. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China; 2.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 3. Beijing Engineering Research Center for Animal Healthy Environment, Beijing 100083, China,1. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China; 2.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 3. Beijing Engineering Research Center for Animal Healthy Environment, Beijing 100083, China and 1. Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, China Agricultural University, Beijing 100083, China; 2.College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; 3. Beijing Engineering Research Center for Animal Healthy Environment, Beijing 100083, China |
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| Abstract: | |
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| Keywords: | radiation temperature humidity heat stress cooling load laying performance mortality economic |
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