阶梯式笼养蛋鸡场氨气、硫化氢和臭气浓度排放特征  

Emission characteristics of ammonia,hydrogen sulfide and odor concentrations in step cage-rearing layer farms

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作  者:丁琳 虞伟祥 谭春梅 应永飞 DING Lin;YU Weixiang;TAN Chunmei;YING Yongfei(Zhejiang Provincial Animal Husbandry Technology Popularization and Breeding Livestock and Poultry Testing Station,Hangzhou 310021,Zhejiang;Haiyan Animal Epidemic Disease Prevention and Control Center,Haiyan 314300,Zhejiang)

机构地区:[1]浙江省畜牧技术推广与种畜禽监测总站,浙江杭州310021 [2]海盐县动物疫病预防控制中心,浙江海盐314300

出  处:《浙江农业科学》2024年第9期2198-2205,共8页Journal of Zhejiang Agricultural Sciences

基  金:浙江省“三农六方”农业科技协作计划(2021SNLF024)。

摘  要:开展典型规模化蛋鸡场氨气、硫化氢等臭气排放特征研究,对改善鸡舍空气质量、减少家禽养殖污染、控制有害气体排放具有深刻意义。文章对浙江某阶梯式笼养蛋鸡场冬、春、夏鸡舍内外氨气、硫化氢以及臭气浓度进行检测分析,并核算每只蛋鸡的栏舍氨排放速率。结果显示:不同季节鸡舍内NH_(3)平均浓度差异显著,冬季最高(14.46 mg·m^(-3)),仅在冬季鸡舍内检测出H_(2)S气体,蛋鸡舍内不同位置NH_(3)、H_(2)S变化规律在不同季节有所不同,冬季和夏季近入口和排风口位置NH_(3)浓度易受到气流的影响,鸡舍中央区域检测出的NH_(3)、H_(2)S浓度更能代表蛋鸡舍内臭气排放情况;舍外各点位中,除鸡舍出风口NH_(3)浓度在冬季最高外,其余均在夏季最高;冬季和夏季蛋鸡栏舍氨排放速率分别为3.09和18.87 mg·h^(-1)·只^(-1),夏季栏舍氨排放速率明显大于冬季;对NH_(3)和臭气浓度进行相关性分析,皮尔逊相关系数为0.41,两者相关性较差。It is of profound significance to carry out research on the emission characteristics of ammonia and hydrogen sulfide in typical large-scale layer farms to improve the air quality of chicken houses,reduce pollution from poultry breeding,and control harmful gas emissions.In this paper,the concentration of ammonia,hydrogen sulfide and odor inside and outside the chicken house in winter,spring and summer of a step cage-rearing layer farm in Zhejiang Province was detected and analyzed,and the ammonia emission rate of each laying hen was calculated.The results showed that the average concentration of NH_(3) in different seasons was significantly different,the highest was in winter(14.46 mg·m^(-3)),H_(2) S gas was detected only in winter in the chicken house,and the change law of NH_(3) and H_(2) S in different positions in the chicken house was different in different seasons,and the NH_(3) concentration near the entrance and exhaust outlet in winter and summer was easily affected by the air flow,and the NH_(3) and H_(2) S concentrations detected in the central area of the chicken house were more representative of the odor emission in the chicken house.Among the points outside the house,the NH_(3) concentration was the highest in summer except for the NH_(3) concentration at the air outlet of the chicken house,which was the highest in winter.The ammonia emission rates of chicken house in winter and summer were 3.09 and 18.87 mg·h-1 per chicken,the ammonia emission rate of the chicken house in summer was significantly greater than that in winter;The correlation analysis between NH_(3) and odor concentration showed that the Pearson correlation coefficient was 0.41,and the correlation between the two was poor.

关 键 词:蛋鸡 氨气 硫化氢 臭气浓度 氨排放速率 排放规律 

分 类 号:S815.9[农业科学—畜牧学]

 

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