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Histopathological Study for some infected Pigeons with Raillietina spp. in Baghdad | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 1, 2012, Pages 19-28 | ||
| Author | ||
| Hanan Jawad | ||
| Abstract | ||
| Raillietina spp. is a parasitological agent that cause harmful losses in birds and poultry industries and due to lack of researches on this parasite and its histological effect we design this study. The present investigation aimed to assess morbidity rate of Raillietina spp. infection in pigeons and birds, beside their histopathalogical changes in intestine, kidney and liver. Accordingly, 47 pigeons and birds (Columbidae family) were collected from different areas in Baghdad. They included two hunted species of pigeon (Group A: 20 Columba livia and Group B: 20 Streptopelia decaoto) and further seven birds (Group C: Columba livia domestica) were collected from a local Baghdad market. The total morbidity rate of Raillietina spp. in pigeons was (47) 45%, while they were 30, 50 and 70% in groups A, B and C respectively. Animal in group A showed an increase in number of goblet cells, enlargement of columnar epithelial cell and villi in the intestine, while in kidney and liver there were no significant changes observed. In group B, there were necrosis and sloughing of the endothelial cells of convoluted tubules of kidneys and had hydropic degeneration of the liver in addition to congestion in some cases. In the intestine, there was infiltration of mononuclear cells and increase in the number of the goblet cells. Group C showed hydropic degenerations in the liver tissue in addition to mononuclear cell infiltration in the portal region with scattered necrosis of the hepatocytes and congestion in some cases, In kidneys there were sloughing in the epithelial cells of proximal convoluted tubules, dilatation of glomeruli and dilated distal convoluted tubules, while in the intestine, there was infiltration of mononuclear cells and increase in the number of goblet cells. | ||
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