Serodiagnostic studies on bovine leptospirosis in Beni-Suef Governorate
2007
W. H. Hassan
The present study was carried out in dairy farms experiencing low reproductive efficiency. Blood samples were collected from 84 cattle and 16 buffaloes suffered from infertility problems for detection and titration of leptospiral antibodies using the microscopic agglutination test (MAT). Eleven standardized leptospira serovars were used as living antigens for this purpose. Sixteen (19.05%) and 2 (12.5%) samples were found positive for L. interrogans serovar Icterohaemorrhagiae for cattle and buffaloes respectively, with titers ≥1:200. Antibodies against L. interrogans serovar Pomona were detected in 8 (9.52%) and 2 (12.5%) in cattle and buffaloes respectively with titers ≥1:400. Two cattle (2.38%) and two buffalo (12.5%) samples were positive for L. interrogans serovar Djasiman. On the other hand, two cattle samples were positive for both L. interrogans serovar Icterohaemorrhagiae and L. interrogans serovar Pomona. Second serum samples were rechecked for seroconversion from each positively reacted animal with 3-4 weeks interval.
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