Diagnosis of infectious bursal disease infection by immunofluorescence technique

Abstract

In this study, use and standardization of immunofluorescence technique for the diagnosis of infectious bursal disease (IBD) infection and preparation of the conjugate that will be used in the technique were aimed. Immunized chicken and rabbit sera were labelled with fluorescein isothiocyanate. In the standardization of the conjugate dilution, optimal ratio was determined as 1:16 after the evaluation of smears prepared from the bursa Fabricius of the control and experimentally infected groups. Indirect fluorescent antibody technique was found to be relatively superior to the direct fluorescent antibody technique after the standardization tests. In the field studies, 23 out of 28 (85.13%) IBDV infected broiler flocks were detected to be positive by immunofluorescence technique. As a conclusion, immunofluorescent antibody technique (IFAT) was found to be useful for diagnosis of the IBDV infections

Keywords

• Chicken
• Gumboro
• IBDV
• immunofluorescence

İnfeksiyöz bursal hastalığının immunofloresan tekniği ile teşhisi

Abstract

Bu çalışmada, infeksiyöz bursal hastalığının (IBD) teşhisinde immunofloresan tekniğinin kullanılması, standardizasyonu ve bu teknikte kullanılacak konjugatın hazırlanması amaçlandı. İmmunize edilen tavuk ve tavşan serumları floresein izotiosiyanat ile işaretlendi. Konjugat standardizasyonu için deneysel infekte ve kontrol grubundan hazırlanan preparatlarla yapılan testlerde optimal konjugat sulandırmasının 1:16 olduğu belirlendi. Ayrıca standardizasyon çalışmaları sonrasında indirekt floresan antikor tekniğinin (IFAT) relatif olarak direkt floresan antikor tekniğine (FAT) üstünlüğü saptandı. AGID testinde kontrol grubuna ait örnekler negatif, aşılı ve saha suşu ile infekte edilen gruplara ait örnekler ise pozitif sonuç verdi. AGID’e göre FAT ve IFAT’ın spesifite ve sensitivitesinin %100 olduğu hesaplandı. Saha çalışmalarında, IBD şüpheli 27 kümesin 23’ünde (%85.13) pozitiflik saptandı. Sonuçta, immunofloresan tekniğinin IBDV infeksiyonlarında kullanılabilirliği ortaya konuldu

Keywords

• Gumboro
• IBDV
• immunfloresan
• tavuk

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