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Studies on the prevalence of caprine and ovine hydatidosis at slaughter houses of Larkana, Pakistan

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Author(s): Abdul Sattar Surhio, | Bachal Bhutto, | Javaid Ali Gadahi, | Nasreen Akhter | Abdullah Arijo

Journal: Research Opinions in Animal & Veterinary Sciences
ISSN 2221-1896

Volume: 1;
Issue: 1;
Start page: 40;
Date: 2011;
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Keywords: Echinococcus granulosus | Hydatidosis | Hydatid Cyst | Sheep | Goats

ABSTRACT
A total of 1000 carcasses of sheep (500) and goats (500) of different ages were examined from January 2005 to December 2005 at the slaughter houses of Larkana, Sindh (Pakistan). 53 (10.6%) sheep and 51 (10.2%) goats were found infected with hydatidosis. Liver was the most infected organ (8.8%), whereas spleen and heart were the least infected (0.2%) in goat. In sheep highest percentage (8.8%) of infection was recorded in the lungs and lowest (0.2%) in the heart. In sheep, the length of cyst ranged between 1 to 12, 1 to 10 or 0.5 cm in liver, lungs and heart respectively. In goats, the length of hydatid cysts was recorded as 1 to 9, 1 to 7, 1 and 0.75 cm in liver, lungs spleen and heart respectively. In sheep, the average numbers of hydatid cysts were found as 5.5, 4 and 1 liver, lungs and heart respectively, whereas in case of goats the average numbers of cysts were 5.5, 5 and 1.5 in liver, lungs and spleen respectively. Moreover, only 1 cyst was found in heart. Sheep fell in age category of 25 months and above were more infected (16%) compared to 13 to 24 (7.24%) and 6 to 12 months (2.05%) old. Likewise, the prevalence in goats was 13.88, 8.59 and 3.26% respectively in the same age groups. The highest rate of infection was recorded in the month of January (23.80%) and May (19.51%) in sheep and goat respectively. This data will help in controlling strategies of hydatidosis in small ruminants.
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