EPIDEMIOLOGICAL STUDY ON THE PREVALENCE OF HYDATIDOSIS IN SLAUGHTERED RUMINANTS IN KERBALA GOVERNORATE | ||
| journal of kerbala university | ||
| Article 1, Volume 8, Issue 2, June 2012, Pages 326-333 PDF (0 K) | ||
| Author | ||
| Hikmat . S. Al-Nassir | ||
| Abstract | ||
| A retrospective survey was conducted for determining the prevalence of hydatid cysts in food animal species: sheep, goats, cattle, buffaloes and camels in Kerbala Governorate between January and December2011. Slaughterhouse specimens of 1130 sheep, 200 goats, 292 cattle and 79 buffaloes were collected through weekly visits. Hydatid cysts in liver and lungs of the above mentioned animal species were detected and counted, while the fertility rate of the cysts was microscopically examined. A temporal distribution of infection was studied to determine the seasonal variation of the incidence rates. The rate of infection was 2.41% in sheep, 2.16% in goats, 3.18% in cattle, 4.79% in buffaloes and 0% in camels. The highest percentage of infection (4.79%) was noticed in buffaloes can be attributed to the old age at which the animal was examined, while the argument behind the lowest infection rate 0% in camel was the unique raising system of camel as well as the weak relationship between camel and stray dogs. The infection was noticed more frequently in livers(53% sheep and buffaloes, 56% goats and cattle) than lungs of all examined animal species. The results also revealed that the highest infection rate of hydatidosis in all examined animal species was recorded in the first quarter of the year (winter season). The grazing system of the animals during late autumn and winter may increase the opportunity of Echinococcus eggs to enter the animal GIT and formation of cysts in the targeted viscera. Fertile cysts were found more frequently in livers of cattle 37.7% and buffaloes 36.7% , while lungs of the same species harbor 22.9% and 26.6% of fertile cysts respectively. Fertile cysts were also detected in 15.8% lungs of sheep and 15 % goat- lungs, while livers of the same species were less infected by fertile hydatid cysts ( 11.2% , 12.5% of sheep and goat respectively ). | ||
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