Article

Prevalence of Cystic Echinococcosis in slaughtered ruminants in different abattoirs, upper Egypt

American Journal of Animal and Veterinary Sciences 07/2013; 8(3):117-121. DOI: 10.3844/ajavsp.2013.117.121

ABSTRACT

Hydatid disease is a re-emerging disease that infects human and animals world-wide. Cystic Echinococcosis (CE) is the most common form of the disease. In Egypt, CE is an endemic disease and several reports have indicated an increasing prevalence rate of the CE infection in animals and humans in the last few years. The aim of the current study is to determine the prevalence rate and other epidemiological factors in the infecting of ruminants with CE in different locations in Upper Egypt. The data gathered shows that of 4,498 animals examined, 89 (1.97%) had the hydatid cyst. Sheep were the most affected animal species (14.1%), then goats (13%), camels (5%) and cattle (0.068%), while buffaloes were free from infection. A higher percentage were affected in the liver (39.3%) than in the lungs (32.5%) and other viscera (2.2%), while 25.8% were affected in both the liver and the lungs The general fertility rate of cysts examined was 27.71%; cysts of camel origin were the most fertile (66.6%), followed by those of goats (29.41%) and sheep (15.51%); that of cattle was 0%. The current study provides current data about the status of CE infection in ruminants in Upper Egypt that will aid further studies and enable more precise planning for effective control strategies.

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    ABSTRACT: A total of 5592 cattle, 10974 sheep and 10066 goats in El Tarf; 49 cattle, 923 sheep and 198 goats in Tebessa and 951 cattle, 20350 sheep, 67 goats and 2731 dromedaries in Ouargla were carefully examined, between 2008 and 2009, for the presence of Echinococcus granulosus hydatid cysts during the routine meat inspection in abattoirs. Also, for the first time in Algeria, the study included 111 wild boars. The prevalence of cystic Echinococcosis in El Tarf was 24.86, 13.83 and 3.71% in cattle, sheep and goats, respectively. In Tebessa, it was 89.80% in cattle, 78.01% in sheep and 67.17% in goats and in Ouargla it was 17.77, 10.83, 8.35 and 7.46% in sheep, cattle, dromedaries and goats, respectively. Concerning Wild boars, the prevalence of cystic Echinococcosis was 6.81 (3/44) and 5.97% (4/67) in El Tarf and Annaba regions, respectively, which giving an overall prevalence of 6.3% (7/111). Livers and lungs were the only infected organs in domestic ruminants. Generally, the most affected organ was the lung. The total annual economic losses from organ condemnation due to hydatidosis was estimated at 28,286; 25,939; 3,309 and USD 3,747 in cattle, sheep, goats and dromedaries, respectively. This epidemiological study confirms the importance of cystic Echinococcosis in slaughtered domestic ruminants in Algeria. Thus, there is a need to introduce appropriate control measures to minimize the rate of infection and reduce the ensuing economic losses and public health consequences of cystic echinococcosis.
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