夏季立体养殖肉鸡舍细菌气溶胶分布规律研究
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摘要
为研究夏天封闭有窗立体养殖白羽肉鸡舍中细菌气溶胶的分布规律,使用Ander-son-6撞式空气微生物采样器,采用多点测量法对山西省某养殖基地的单栋饲养量40 320只的白羽商品肉鸡舍进行了气溶胶采样与分析。结果显示:在夏季该类型鸡舍内的气溶胶粒度主要分布于采样器的第Ⅲ、Ⅳ、Ⅴ层级,占总菌数的72.4%;采样器中各级细菌气溶胶的浓度均低于行业标准的限值,平均浓度为3.11×10~2cfu/m~3;细菌气溶胶浓度与不同采样位置无关,但从湿帘端到风机端有升高的趋势。研究表明:该类型鸡舍在夏季舍内细菌气溶胶控制良好,适宜肉鸡生长,向舍外排出的细菌对环境的污染需要进一步的研究。
In order to investigate the distribution rule of bacterial aerosols in window-closed broiler house with overlap cages in summer,different bacterial aerosols,obtained from a breeding base in Shanxi province which bred40 320 white-feather broilers were analysed with six-stage Andersen percussive microbial airborne sampler using multimetering.The results showed that during summer period,the bacterial aerosols were mainly located on the stageⅢ,Ⅳ and Ⅴ which contained 72.4% of the total bacteria of the Anderson-6 air sampler in the broiler houses.The concentration of bacterial aerosols at all levels of the samples was lower than the industry standard limit,and the average concentration was 3.11×10~2 cfu/m~3.The results of concentration showed no relativity with the locations of taking sample,but the concentration went higher from the wet-curtain position to the fan position.Bacterial aerosols of this broiler house was controlled better in summer,which created a suitable growth conditions for broilers,which caused environmental pollution by the bacterial aerosols in broiler house required further research.
In order to investigate the distribution rule of bacterial aerosols in window-closed broiler house with overlap cages in summer,different bacterial aerosols,obtained from a breeding base in Shanxi province which bred40 320 white-feather broilers were analysed with six-stage Andersen percussive microbial airborne sampler using multimetering.The results showed that during summer period,the bacterial aerosols were mainly located on the stageⅢ,Ⅳ and Ⅴ which contained 72.4% of the total bacteria of the Anderson-6 air sampler in the broiler houses.The concentration of bacterial aerosols at all levels of the samples was lower than the industry standard limit,and the average concentration was 3.11×10~2 cfu/m~3.The results of concentration showed no relativity with the locations of taking sample,but the concentration went higher from the wet-curtain position to the fan position.Bacterial aerosols of this broiler house was controlled better in summer,which created a suitable growth conditions for broilers,which caused environmental pollution by the bacterial aerosols in broiler house required further research.
引文
[1]山西省质量技术监督局.白羽肉鸡立体养殖技术规程:DB14/T 879-2014[S].2014.
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[4]薛俊龙,刘源,王志宇,等.智能化密闭商品肉鸡舍冬季生物气溶胶分布研究[J].中国家禽,2017,39(5):39-44.
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[9]刘敬博,柴同杰,苗增民,等.培养法和染色法对养殖环境中微生物气溶胶浓度的检测[J].动物医学进展,2010,31(S1):86-89.
[10]高敏,贾瑞志,仇天雷,等.集约化养鸡场空气环境中生物气溶胶特点研究[J].农业环境科学学报,2015,34(4):787-794.
[2]杨文超,李沁,陈文斌.肉鸡立体养殖模式的实践与体会[J].中国家禽,2015,37(21):74-76.
[3]申李琰,陈文斌,牛晋国,等.肉鸡立体养殖模式[J].中国畜牧兽医文摘,2014,30(12):74-75.
[4]薛俊龙,刘源,王志宇,等.智能化密闭商品肉鸡舍冬季生物气溶胶分布研究[J].中国家禽,2017,39(5):39-44.
[5]吕静.H9N2亚型禽流感病毒气源性传染的监测及其分子机制的研究[D].泰安:山东农业大学,2012.
[6]刘凤芝.鸡舍大肠杆菌的气溶胶发生及其传播模式[D].泰安:山东农业大学,2009.
[7]MOSTAFA E,BUESCHER W.Indoor air quality improvement from particle matters for laying hen poultry houses[J].Biosys-tems Engineering,2011,109(1):22-36.
[8]张永英,索慧娜,钟翠红,等.蛋鸡舍环境气载微生物含量与分布监测[J].中国家禽,2016,38(11):59-61.
[9]刘敬博,柴同杰,苗增民,等.培养法和染色法对养殖环境中微生物气溶胶浓度的检测[J].动物医学进展,2010,31(S1):86-89.
[10]高敏,贾瑞志,仇天雷,等.集约化养鸡场空气环境中生物气溶胶特点研究[J].农业环境科学学报,2015,34(4):787-794.