Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2009 / Cilt: 15 - Sayı: 1

PCR detection of Mycoplasma bovis, M. dispar, M. bovirhinis and M. mycoides subsp. mycoides (small colony type) and ınvestigations of pathological findings in pneumonic cattle

Pnömonili sığırlarda Mycoplasma bovis, M. dispar, M. bovirhinis ve M. mycoides subsp. mycoides (küçük koloni tipi)'in PZR ile belirlenerek patolojik bulguların incelenmesi

Pages
125–133
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Isolation of Mycoplasma was not accomplished in any of the animals by bacteriological culture technique.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, incidence of Mycoplasma bovis, M. dispar, M. bovirhinis and M. mycoides subsp. mycoides (small colony type) was determined, and the histopathological changes in the lungs were investigated in the pneumonic cattle living in Kars.
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Key Findings & Data:For this purpose, lung samples were collected from 100 pneumonic cattle that were grossly detected after slaughter, and processed routinely for histopathological examination.
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Conclusion & Impact:Isolation of Mycoplasma was not accomplished in any of the animals by bacteriological culture technique.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:karşılaştırmalar · sığır · Mycoplasma mycoides

Abstract

In this study, incidence of Mycoplasma bovis, M. dispar, M. bovirhinis and M. mycoides subsp. mycoides (small colony type) was determined, and the histopathological changes in the lungs were investigated in the pneumonic cattle living in Kars. For this purpose, lung samples were collected from 100 pneumonic cattle that were grossly detected after slaughter, and processed routinely for histopathological examination. Bacteriological investigations were performed by inoculating the tissue samples onto Mycoplasma agar and broth, and searching for “L” colony type. Using specific oligoprimer pairs for the Mycoplasma species, DNA amplifications were carried out by polymerase chain reaction (PCR) and the amplicons were electrophoretically run in 1.5% agarose gel. In histopathological examinations, pneumonias ranging from catharal to granulomatous were determined. Microscopic observations of fibrinous pneumonias, which are caused by Mycoplasmas, revealed coagulation necrosis, accompanying neutrophile and mononuclear cell infiltration, edema, fibrin, occasional thrombosis and thickening of pleura. In PCR analysis, 400, 433 and 316 base pair long bands representative of M. bovis, M. dispar and M. bovirhinis were detected, respectively. M. bovis and M. dispar were detected, only in animals with fibrinous pneumonia, in 4 and 6 animals, respectively. M. bovirhinis was determined in 11 animals of which 7 were in animals with fibrinous pneumonia. M. bovirhinis was found as a mix agent in 1 animal each with M. bovis and M. dispar. Isolation of Mycoplasma was not accomplished in any of the animals by bacteriological culture technique.

Özet

Bu çalışma ile Kars ilinde pnömonili sığırlarda Mycoplasma bovis, M. dispar, M. bovirhinis ve M. mycoides subsp. mycoides (küçük koloni tipi)’in insidensleri belirlenerek pnömonili akciğerlerde gözlenen histopatolojik değişiklikler değerlendirildi. Bu amaçla, kesimi takiben makroskopik olarak akciğerlerinde lezyon tespit edilen 100 adet sığırdan elde edilen doku örnekleri rutin olarak işlenerek mikroskopta incelendi. Bakteriyolojik incelemeler için alınan dokular Mycoplasma agar ve brothda ekimleri yapılarak “L” koloni formları arandı. Polimeraz zincir reaksiyonu (PZR) amacıyla alınan doku parçalarından elde edilen total DNA örneklerinde belirtilen Mycoplasma etkenlerine spesifik oligoprimer çiftleri kullanılarak DNA amplifikasyonları yapıldı ve %1.5’luk agaroz jelde elektroforetik olarak koşuldu. Histopatolojik incelemelerde kataraldan granulomatöze kadar değişen tiplerde pnömonilere rastlandı. Özellikle Mycoplasma etkenleri tarafından oluşturulan fibrinöz tabiattaki pnömonilerde değişen derecelerde olmak üzere koagulasyon nekrozuna, bu nekroza eşlik eden nötrofil lökosit ve mononükleer hücre infiltrasyonları ile ödem, fibrin, yer yer tromboz ve plörada kalınlaşmalara rastlandı. PZR analizlerinde M. bovis, M. dispar ve M. bovirhinis’e spesifik sırasıyla 400, 433 ve 316 baz çifti uzunluğunda bantlar tespit edildi. Fibrinöz pnömonili vakalarda olmak üzere M. bovis ve M. dispar sırasıyla 4 ve 6 vakada belirlendi. M. bovirhinis toplam 11 vakada tespit edilirken bunların 7’si fibrinöz pnömonili hayvanlarda gözlendi. M. bovirhinis 1’er vakada olmak üzere M. bovis ve M. dispar ile beraber belirlendi. Bakteriyolojik ekimler sonucunda hiçbir vakada Mycoplasma izolasyonu gerçekleşmedi.

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Cite This Article

ÖZEN, H., KARAMAN, M., ŞAHİN, M., ÖZCAN, K. (2009). PCR detection of Mycoplasma bovis, M. dispar, M. bovirhinis and M. mycoides subsp. mycoides (small colony type) and ınvestigations of pathological findings in pneumonic cattle. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 15 - Sayı: 1, 125–133. https://ajindex.com/articles/273882

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