Hydatidosis of slaughtered animals in Ngorongoro district of Arusha region, Tanzania
Hydatidosis of slaughtered animals in Ngorongoro district of Arusha region, Tanzania
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DOI：
10.1007/s11250-008-9298-z
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发表时间：
2009-10-01
影响因子：
1.7
通讯作者：
Kazwala, R. R.
中科院分区：
文献类型：
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作者：
Ernest, E.;Nonga, H. E.;Kazwala, R. R.
对坦桑尼亚阿鲁沙地区恩戈罗恩戈罗地区牛、山羊和绵羊的包虫病流行情况进行了研究。检索并分析了4个屠宰板的4年数据记录。此外，对同一屠宰场进行了为期9个月的肉类检查，并对64户家庭进行了访谈，以评估社区对包虫病的认识。结果显示包虫病总患病率为47.9%。牛、山羊和绵羊的感染率分别为48.7%、34.7%和63.8%。在检查的174个牛包囊中，37个（21.3%）为可育包囊，126个（72.4%）为不育包囊，11个（6.3%）为钙化包囊。215个山羊和67个绵羊囊肿中，可育囊肿分别为52个（24.7%）和26个（38.8%），不育囊肿分别为138个（64.2%）和38个（56.7%），钙化囊肿分别为24个（11.2%）和3个（4.5%）。绵羊和山羊中较高比例的可育性包虫囊，加上后院屠宰绵羊和山羊的做法，表明这些动物可能是维持E.在当地的granulosus。问卷调查显示，17.2%的人知道包虫病，但对包虫病的传播途径了解甚少。高达84.4%的受访者家养反刍动物和驴，而89.1%的受访者养狗。在养狗的家庭中，只有19.3%的人一生中至少给狗驱虫一次。大部分家庭（87.7%）的狗只可自由管理，而77.2%的受访者表示学童是家中狗只最亲密的朋友。E.野生动物中的颗粒体感染以及同一地区的家庭循环与森林循环之间可能存在的关系尚不清楚，需要进行研究。
A study on the prevalence of hydatidosis in cattle, goats and sheep was carried out in Ngorongoro district of Arusha region, Tanzania. A 4-years data records from four slaughter slabs were retrieved and analysed. In addition, meat inspection was done in the same slaughter slabs for nine months and 64 households were interviewed to assess the community awareness on hydatidosis. Results showed the overall prevalence of hydatidosis to be 47.9%. Species prevalence of 48.7%, 34.7% and 63.8% in cattle, goats and sheep respectively was recorded. Of 174 cysts examined in cattle, 37 (21.3%) were fertile, 126 (72.4%) were sterile and 11 (6.3%) were calcified. Out of 215 goats and 67 sheep cysts examined, 52 (24.7%) and 26 (38.8%) were fertile, 138 (64.2%) and 38 (56.7%) were sterile, 24 (11.2%) and 3 (4.5%) were calcified respectively. The higher percentage of fertile hydatid cysts in sheep and goats coupled with the practice of backyard slaughter of sheep and goats suggests that, these animals could be important intermediate hosts for the maintenance of the domestic life cycle of E. granulosus in the locality. Questionnaire survey revealed that 17.2% of the respondents were aware of hydatidosis but non of them were knowledgeable on its transmission. Up to 84.4% of the respondents had domestic ruminants and donkeys, while 89.1% had dogs. Of the households with dogs, only 19.3% had their dogs dewormed at least once in life time. Most of the households (87.7%) had their dogs managed freely and 77.2% of the respondents reported school children to be the closest friends of dogs in the family. The prevalence of E. granulosus infection in wildlife and the possible relationship of the domestic cycle to the sylvatic cycle operating in the same area are unknown and need to be studied.