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Product title :

Ornithobacterium rhinotracheale and Mycoplasma synoviae in broiler chickens in Jordan

Author(s) : D.A. Roussan, R.H. Al-Rifai, G.Y. Khawaldeh, W.S. Totanji & I. Shaheen

Summary :

A cross-sectional study was conducted from November 2008 to July 2010 in commercial broiler flocks in southern (n = 50) and northern (n = 50) areas of Jordan, to determine the flock-level prevalence of Ornithobacterium rhinotracheale (ORT) and Mycoplasma synoviae (MS) infections. Tracheal swabs were collected from commercial broilers with respiratory disease and tested by polymerase chain reaction. In total, 21% (95% CI: 18–45%) and 25% (95% CI: 20–51%) of commercial broiler flocks were positive for ORT and MS, respectively. In the southern areas the prevalence of flocks with positive tracheal swabs for ORT and MS was 16% and 10%; in the northern areas the prevalence was 26% and 40%, respectively. Of the flocks tested, 7% were infected with ORT and MS simultaneously. Further epidemiological studies are recommended to determine risk factors and evaluate the economic consequences of ORT and MS infections in the region. Furthermore, studies are required to isolate ORT and MS and develop vaccines against the local field isolates.
 
Keywords
Broiler – Jordan – Mycoplasma synoviaeOrnithobacterium rhinotracheale – Polymerase chain reaction.

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