关键词: 细粒棘球绦虫, 骆驼, 形态, 发育, 新疆

Abstract: AIM: To study the characteristics of development and morphology of E. granulosus of
camel origin in north Xinjiang. METHODS:Six dogs were infected with protoscolices and then
purged with arecoline at days 35 and 45 p.i.RESULTS:Six dogs were heavily infected, the worm
burden were 14 780 to 135 900 at days 35 and 45 p.i. At day 35 p.i. 77% of the had developed
three segments, 10% contained mature eggs with fully developed “thick shelled” embryophores.
Morphological studies revealed the following characteristics for 35-day-old worms: the mean
length of the terminal segment accounted for 56% of the total worm length: the position of the
sexually mature segment was always terminal (77% ) ; the female reproductive system possessed an
enlongated ovary with compact lobules; the Mehlis gland was covered by the vitelline gland and
the testes were distributed throughout the segment arranging in a row posterior to the vitelline
gland. CONCLUSION: The E. granulosus of camel isolate in north Xin jiang can readily be
distinguished from the horse, sheep , cattle and pig strains, but is similar to the camel (
Camelus drom edarius ) strain distributed in North Africa.

Key words: Echinococcus granulosus, camel, morphology, development, Xinjiang