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Induced systemic listeriosis in Alectoris chukar chicks: clinical,histopathological and microbiological findings |
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| Authors: | H Tavakkoli M Rahmani R Ghanbarpoor R Kheirandish |
| Institution: | 1. Department of Clinical Science, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran;2. Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran;3. Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran |
| Abstract: | 1. Systemic listeriosis was induced in 14-d-old Chukar partridge chicks, Alectoris chukar, by intravenous injection of a suspension containing 106 cfu/ml of viable Listeria monocytogenes organisms to study the course of infection. 2. Septicaemic and encephalitic forms of listeriosis were observed in all birds. Infection resulted in a fever response 8-h post-inoculation. Disease rapidly developed over a 24-h period with decreased activity, lethargy, ruffled feathers, huddling, listlessness, inability to stand, wing droop, decreased feed and water consumption, growth depression, neural disturbances and finally death. Gross and histopathological changes were observed in the myocardium, proventriculus, gizzard, intestine, pancreas, kidney, liver, spleen, lung, meninges and joints. 3. The diversity of these clinical signs and lesions suggests a high susceptibility of Chukar partridge chicks to systemic listeriosis. |
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