PREVALENCE OF HYDATID CYSTS IN SLAUGHTERED SHEEP AND GOATS IN HADHRAMOUT (YEMEN) معدل الإصابة بالأکياس المائية في الخراف والماعز المذبوحة   في محافظة حضرموت (اليمن)

doi:10.21608/auber.2007.150237

PREVALENCE OF HYDATID CYSTS IN SLAUGHTERED SHEEP AND GOATS IN HADHRAMOUT (YEMEN) معدل الإصابة بالأکياس المائية في الخراف والماعز المذبوحة في محافظة حضرموت (اليمن)

Document Type : Original Article

10.21608/auber.2007.150237

Abstract

ABSTRACT:

218 sheep and 422 goats carcasses were examined (2005/2006) for the presence of hydatid cysts in Hadhramout (Yemen). The prevalence was 3.21% in sheep and 2.13% in goats. All the positive animals are males. The liver was the predominant site of infection in both animals. In relation to the age-group (years) the rate of infection increased with the animal's age. There was a slight difference in the fertility of cysts in sheep (46.6%) and goats (55.2%), while the same observations were noted between liver and lungs in the two animals, while the degenerated cysts were more observed in sheep (24.5%) than in goats (12.6%).
These findings reflect the existence of the life cycle maintainance and the transmission of the cestode Echinococcus granulossus from definitive host (dogs) to intermediate hosts (sheep, goats) in Yemen. Consequently, further epidemiological researches are needed to clarify all the factors affecting the continuity of this biological cycle.
تم فحص 218 من ذبائح الخراف، 422 من ذبائح الماعز بين عامي 2005و 2006م في محافظة حضرموت، للتحقق من وجود الأکياس المائية. فکانت الإصابة بنسبة 3.21% بين الخراف، 2.13% بين الماعز. سادت هذه الأکياس في الکبد في کلا النوعين من الحيوانات, ووجد أن الإصابة تزداد بازدياد عمر الحيوان. هناک اختلافات بسيطة في خصوبة الأکياس بالنسبة للخراف (46.6%)، والماعز (55.2%)، أيضاً بالنسبة للعضوين المصابين في کل من الحيوانين. أما بالنسبة لتحلل الأکياس فوجد أنه في الخراف (24.5%) أکثر منه في الماعز (12.6%).
هذه النتائج تؤکد وجود دورة الحياة والانتقال بين العوائل الأساسية (الکلاب)، والثانوية (الخراف والماعز)، ويتطلب ذلک دراسات مستقبلية لإماطة اللثام عن العوامل التي تؤثر على استمرارية هذه الدورة البيولوجية.

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