Zucker B A, Trojan S, Müller W
Institut für Tier- und Umwelthygiene des Fachbereichs Veterinärmedizin, Freien Universität Berlin, Germany.
J Vet Med B Infect Dis Vet Public Health. 2000 Feb;47(1):37-46. doi: 10.1046/j.1439-0450.2000.00308.x.
The concentration and the species composition of airborne gram-negative bacteria were studied in four cattle houses, one pig house and one poultry barn. On average only between 0.02 and 5.2% of the total number of culturable aerobic bacteria were identified as gram-negative bacteria. Obligate anaerobic gram-negative bacteria were not isolated at all. In the airborne gram-negative bacterial flora the following bacterial families dominated: the Enterobacteriaceae, the Pseudomonadaceae and the Neisseriaceae. Within the family of the Enterobacteriaceae the species Escherichia coli and Enterobacter agglomerans were predominant. In animal houses using straw as bedding material Ent. agglomerans was most frequent, whereas in animal houses without litter E. coli was mainly found. Airborne Neisseriaceae were isolated very frequently in cow barns with Acinetobacter lowffii as the primary species. Airborne Pseudomonadaceae were found in high concentrations during periods of high air humidity. The results presented may also give some indications on the origin and sources of airborne endotoxins in animal housing.
对四间牛舍、一间猪舍和一间家禽饲养棚内空气传播的革兰氏阴性菌的浓度和种类组成进行了研究。平均而言，可培养需氧菌总数中只有0.02%至5.2%被鉴定为革兰氏阴性菌。完全没有分离出专性厌氧革兰氏阴性菌。在空气传播的革兰氏阴性菌菌群中，以下细菌科占主导：肠杆菌科、假单胞菌科和奈瑟菌科。在肠杆菌科中，大肠杆菌和聚团肠杆菌是主要菌种。在使用稻草作为垫料的动物舍中，聚团肠杆菌最为常见，而在没有垫料的动物舍中，主要发现的是大肠杆菌。在以洛菲不动杆菌为主要菌种的奶牛舍中，空气传播的奈瑟菌科被频繁分离出来。在空气湿度高的时期，空气传播的假单胞菌科浓度很高。所呈现的结果也可能为动物饲养舍中空气传播内毒素的来源和源头提供一些线索。
