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KMID : 0380520010050020043
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Korean Journal of Veterinary Pathology
2001 Volume.5 No. 2 p.43 ~ p.48
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Concurrent Occurrence of Duck Viral Hepatitis and Salmonellosis in Ducklings
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Koh Ba-Ra-Da
Kim Yong-Hwan
Kim Gye-Yeop
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Abstract
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Ducklings collected from three farms, having history of rapid onset and spread of nerve signs including kick spasmodically with legs and opisthotonos, were pathologically, barteriologically, virologically examined. Grossly, multiple petechial to ecchymotic hemorrhages were detected in the swollen liver. Histopathologically, diffuse coagulative necrosis of hepatocytes was characteristic in acute cases. Chronic cases revealed marked bile duct hyperplasia rather than hepatocyte necrosis. Some of these cases exhibited multiple granulomas consisting of macrophages, heterophil, fibrin and necrotic cell debri. Filtered homogenate of livers sampled from ducklings caused embryo death with marked hemorrhage and swollen of liver after inoculation into chorioallantoic membrane. Three strains of Salmonella app.,S montevideo, S hadar, and S give, which were biochemically and serologically identified, weir isolated from ducklings of three farms, respectively. From these results, these ducklings were concurrently infected with duck hepatitis virus and Salmonella spp.
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KEYWORD
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duckling, duck viral hepatitis, DVH, salmonellosis
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