Concentrations of mesophilic bacteria in a poultry farm over two fattening periods focusing on the presence of staphylococci and enterococci.

Doris Haas, Tea Miskovic, Theresa Fritz, Herbert Galler, Juliana Habib, Sabine Köck, Michael Kropsch, Peter Pless, Martin Stonitsch, Eduard Zentner, Franz F Reinthaler
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引用次数: 1

Abstract

The increasing animal numbers have a potential impact on the air quality of stables. The aim of this study was to assess the microbial load in the barn air from the day of entry of the chickens to the day of removal for slaughter. A total of 10 measurements in two fattening periods were conducted in a poultry farm with a capacity of 400 chickens in Styria, Austria. The samples were collected with an Air-Sampling Impinger for the investigation of mesophilic bacteria, staphylococci and enterococci. Chicken skin swab samples were collected to detect Staphylococcus aureus. The total colony forming units per cubic meter of mesophilic bacteria of the first measurement series of period I was 7.8 × 104 and increased to 1.4 × 108 at the end and at the fattening period II it increased from 2.5 × 105 to 4.2 × 107. In the measurement series of the fattening period I, the concentration of Staphylococcus spp. increased from 0 to 4.9 × 107 CFUs/m3 and from 0 to 2.1 × 107 CFUs/m3 in the fattening period II. Staphylococcus aureus could not be found on the chicken skin. An interesting finding was the increase of staphylococci while the intestinal enterococci were not detectable in the air of the barn toward the end of both fattening periods.

Abstract Image

Abstract Image

两个育肥期家禽养殖场中嗜酸性细菌的浓度,重点是葡萄球菌和肠球菌的存在。
动物数量的增加对马厩的空气质量有潜在的影响。本研究的目的是评估鸡舍空气中的微生物负荷,从鸡入栏之日起至移出屠宰之日。在奥地利施蒂利亚的一个可饲养400只鸡的家禽养殖场,在两个育肥期共进行了10次测量。采用空气采样冲击器采集样本,调查中温性细菌、葡萄球菌和肠球菌。采集鸡皮肤拭子标本检测金黄色葡萄球菌。第一期测量系列的中温细菌每立方米总菌落形成单位为7.8 × 104,后期增加到1.4 × 108,育肥期由2.5 × 105增加到4.2 × 107。在育肥期I的测量系列中,葡萄球菌浓度从0增加到4.9 × 107 CFUs/m3,在育肥期II从0增加到2.1 × 107 CFUs/m3。鸡皮未检出金黄色葡萄球菌。一个有趣的发现是,在两个育肥期结束时,谷仓空气中葡萄球菌的数量增加,而肠道肠球菌的数量却没有检测到。
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CiteScore
3.30
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