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集约化养鸡场空气环境中生物气溶胶特点研究

DOI: 10.11654/jaes.2015.04.026

Keywords: 肉鸡 蛋鸡 细菌气溶胶 真菌气溶胶 抗生素抗性菌

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Abstract:

为了给北京地区不同类型养鸡场空气环境中生物气溶胶的危害评价提供基础数据,对蛋鸡和肉鸡两种养殖方式下,鸡舍内外空气环境中生物气溶胶的浓度和粒径分布进行检测,并对大肠菌群和抗生素抗性菌进行了分析。结果表明,北京郊区(县)蛋鸡舍内,所调查的五种生物气溶胶(细菌、真菌、大肠菌群、四环素和红霉素抗性菌)浓度高于同地区肉鸡舍(P<0.05)。蛋鸡舍内空气中约50%的细菌气溶胶分别具有四环素和红霉素抗性;大肠菌群、四环素抗性大肠菌群和红霉素抗性大肠菌群的平均浓度分别为7.32×103、2.87×103 CFU·m-3和3.31×103 CFU·m-3。两种养殖方式下细菌和真菌气溶胶粒径分布规律有所差异,导致其在细颗粒物中所占比例不同

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