摘要
以旋毛虫国际标准种:旋毛形线虫(Trichinellaspiralis)和本地毛形线虫(Trichinellanativa)为对照,从生物学方面对黑龙江省猪、犬旋毛虫进行了比较研究,结果表明:猪旋毛虫和T.spiralis在小鼠膈肌中出现保姆细胞(Nursecell,NC)的时间为感染后第16和18天,第38和36天所有肌型幼虫都形成了NC,而犬旋毛虫和T.nativa为感染后20和22天,第32天完全形成;猪旋毛虫、T.spiralis、犬旋毛虫、T.nativa成虫肠期持续时间分别为22,20,16,14天;4个旋毛虫隔离株成虫均主要位于小肠的前、中段,但犬旋毛虫、T.nativa所占比例明显高于猪旋毛虫、T.spiralis,差异极显著(P<0.01)。研究结果揭示,黑龙江省猪旋毛虫相当于旋毛形线虫(Trichinellaspiralis),犬旋毛虫相当于本地毛形线虫(Trichinellanativa)。
Biological characteristics of Trichinella from swine and dog in Heilongjiang province, China were first investigated in combination with studies in biology, the international standard Trichinella isolates, T. spiralis and T. nativa were used as the control. The results indicated as follows:1. Development time of nurse cells around muscle larvae in mice diaphragms was different, at 16 days postinfection (d.p.i.) for swine isolate, at 18,20 and 22d.p.i.for T. spiralis, dog isolate and T. nativa. The 100% level of encapsulation occurred at 32 d.p.i. for dog isolate and T. nativa, at 36 d.p.i. for T. spiralis and at 38 d.p.i. for swine isolate.2.Adult worm longevity of swine isolate, T. spiralis, dog isolate and T. nativa was 22, 20, 16 and 14 days during the intestinal phase respectively; 3. Intestinal distribution of Trichinella from swine and dog, T. spiralis and T. nativa was mainly anterior and middle position in mice, but the number of dog isolate and T. nativa were higher than swine isolate and T.spiralis (P<0.01).On the basis of the results, it is concluded that Trichinella from swine and dog in Heilongjiang province China belong to Trichinella spiralis and Trichinella nativa, respectively.
出处
《动物医学进展》
CSCD
2003年第2期108-111,共4页
Progress In Veterinary Medicine
基金
黑龙江省自然科学基金资助项目(C9618)
关键词
隔离株
旋毛虫
生物学特性
猪
犬
trichinella
biological characteristics
swine
dog
