Biotyping and serotyping of Mannheimia (Pasteurella) haemolytica isolated from lung samples of slaughtered sheep in the Van region

A total of 584 lung samples of slaughtered sheep having clinical symptoms of pneumonia were investigated microbiologically. Out of the 584 samples, 66 (11.3%) Mannheimia (Pasteurella) haemolytica strains were isolated on the basis of cultural, morphological and biochemical characteristics. Sixty-six...

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Veröffentlicht in:Turkish journal of veterinary & animal sciences 2007-01, Vol.31 (2), p.137-141
Hauptverfasser: İlhan, Z., Yüzüncü Yıl University, Faculty of Veterinary Medicine, Van (Turkey). Div. of Microbiology, Keleş, İ., Yüzüncü Yıl University, Faculty of Veterinary Medicine, Van (Turkey). Div. of Internal Diseases
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Zusammenfassung:A total of 584 lung samples of slaughtered sheep having clinical symptoms of pneumonia were investigated microbiologically. Out of the 584 samples, 66 (11.3%) Mannheimia (Pasteurella) haemolytica strains were isolated on the basis of cultural, morphological and biochemical characteristics. Sixty-six isolates of M. haemolytica were biotyped by carbohydrate fermentation tests and serotyped by coagglutination and indirect haemagglutination (IHA) tests. Out of the 66 M. haemolytica strains, 57 (86.3%) were detected as biotype A, and 9 (13.6%) were biotype T. The 66 M. haemolytica isolates were serotyped as follows by coagglutination test: 13 (19.6%) A2, 11 (16.6%) A1, 9 (13.6%) A6, 7 (10.6%) A9, 4 (6.0%) A5, 4 (6.0%) A7, 4 (6.0%) A12, 3 (4.5%) A8, 1 (1.5%) T4, 1 (1.5%) A13, and 1 (1.5%) T15. Of the M. haemolytica strains, 14 (21.2%) belonged to serotype A2, 11 (16.6%) to serotype A1, 10 (15.1%) to serotype A6, 7 (10.6%) to serotype A9, 4 (6.0%) to serotype A5, 4 (6.0%) to serotype A7, 4 (6.0%) to serotype A12, 4 (6.0%) to serotype A8, 1 (1.5%) to serotype T4, 1 (1.5%) to serotype A13 and 1 (1.5%) to serotype T15 by IHA test. Eight (12.1%) and 5 (7.5%) isolates were unserotyped by coagglutination and IHA tests, respectively. T3, T10, A11, A14 and A16 serotypes were not determined. Bu çalışmada, pnöymoni semptomları gösteren ve kesimi yapılan toplam 584 adet koyuna ait akciğer örneği mikrobiyolojik olarak incelendi. Kültürel, morfolojik ve biyokimyasal özellikleri temel alınarak 584 örneğin 66 (% 11,3) adedinden Mannheimia haemolytica izole ve identifiye edildi. İzole edilen M. haemolytica suşlarının karbonhidrat fermantasyon testleriyle biyotiplendirilmeleri, koaglutinasyon ve indirekt hemaglutinasyon (IHA) testleriyle de serotiplendirmeleri yapıldı. Suşların 57 (% 86,3)'sinin biyotip A, 9 (% 13,6)'unun da biyotip T olduğu belirlendi. Koaglutinasyon testiyle izolatların 13 (% 19,6)'ü serotip A2, 11 (% 16,6)'i A1, 9 (% 13,6)'u A6, 7 (% 10,6)'si A9, 4 (% 6,0)'ü A5, 4 (% 6,0)'ü A7, 4 (% 6,0)'ü A12, 3 (% 4,5)'ü A8, 1 (% 1,5)'i T4, 1 (% 1,5)'i A13 ve 1 (% 1,5)'i de T15 olarak belirlendi. IHA testiyle suşların 14 (% 21,2)'ünün A2, 11 (% 16,6)'inin A1, 10 (% 15,1)'unun A6, 7 (% 10,6)'sinin A9, 4 (% 6,0)'ünün A5, 4 (% 6,0)'ünün A7, 4 (% 6,0)'ünün A12, 4 (% 6,0)'ünün A8, 1 (% 1,5)'inin T4, 1 (% 1,5)'inin A13 ve 1 (% 1,5)'inin ise T15 olduğu saptandı. Koaglutinasyon testiyle 8 (% 12,1), IHA test ile 5 (% 7,5) izolat serotiplendirilemedi. Çalışmada, T3, T10, A11, A14 ve A
ISSN:1303-6181
1300-0128