宁夏牛羊裸头科绦虫病原流行学考察

１９９６年８月，作者在宁夏回族自治区盐池滩羊选育场，盐池县大水坑镇屠宰场以及吴忠市等地考察牛羊裸头科绦虫病原流行情况，调查表明滩羊场羊群粪检裸头绦虫卵自然感染率２０．８％（６４／３０７），屠宰场剖检羊小肠裸头绦虫自然感染率１１．７％（３８／３２６）．绦虫种类为曲子宫绦虫感染率５７．９％（２２／３８），扩张莫氏绦虫３１．６％（１２／３８），无卵黄腺绦虫自然感染率２３．７％（９／３８）．用盖氏曲子宫绦虫和中点无卵黄腺绦虫成熟孕节人工感染草场地螨，在室温条件下培养３～４５天后陆续剖检，均未查出绦虫幼虫，剖检牛小肠１４５条，全部未查到绦虫阳性，剖检当地草场裸头绦虫中间宿主超肋甲螨（Ｓｃｈｅｌｏｒｉｂａｔｅｓｃｈａｕｈａｎｉ）以及部分蚂蚁和蚱蜢均未找到绦虫幼虫．

Studies on The Epidemiology of Anoplocephalatoses of Cattle and Sheep from Ningxia

In the August of 1996, a general survey on theepidemiology of domestic cattle and sheep were carried out in Ningxia Autonomous Region.307 sheep were examined by means of fecal examination,and 64 of them(20.8%)were found to have anoplocephalid eggs, Post mortem examination were also made on 326 sheep and 145 cattle slaughtered in slaughter house ,and 38 of sheep (11.6 %) were positive with anoplocephalates,but all of cattle were free from infection. The infection rate of each anoplocehalates were as follows: Thysaniezia giardi is 57.9%(22/38). Moniezia expensa 31.6%(12/38) and Avitellina centripunctata 23.7%(9/38). In the meantime,13260 oribatid mites,510 ants (Formica sanguinea) and 50 grasshoppers (Acrida chinensis) collected from the turf of samples in pature were examined,and all of them were negative with metacestode. Besides,the examination were also made of Thysaniezia giardi, 4000 oribatid mites infected with Avitellina centripunctata and 2500 mites infected with Moniezea benedeni. and no any cysticercoid or metacestode were found from them.