摘要： 观测了旋毛虫南阳猪体分离株的形态大小,测定了其在小鼠和猪体中的繁殖力指数、雌虫体外产新生幼虫的能力和对低温的耐受性。测得该虫株雄成虫、雌成虫和发育充分的肌幼虫的长宽度分别为(1.415±0.164)mm×(0.048±0.014)mm,(2.627±0.246)mm×(0.056±0.018)mm和(1.112±0.185)mm×(0.038±0.013)mm;其在昆明小白鼠和三元杂交猪体中的繁殖力指数分别为(112.0±59.65)和142.5;平均每条雌虫体外产新生幼虫(56.76±5.13)条;在猪肉中的感染性肌幼虫置-32℃36 h或-22℃60 h即全部死亡。结果表明,该旋毛虫南阳猪体分离株的上述生物学特性与猪旋毛虫(T.spiralis)的特性相似。

关键词: 猪, 旋毛虫, 特性, 测定

Abstract: The shape and size of the Trichinella spiralis isolate from the pigs in Nanyang were observed.Its reproductive capacity index(RCI)in mouse or pig and the new born larvae production of per female worm in vitro(NBL)as well as its resistance to low temperature were determined.The results showed that the average length and width of the male or female adult worms and the muscle larvae of the isolate were(1.415±0.164)mm×(0.048±0.014)mm,(2.627±0.246)mm×(0.056±0.018)mm and(1.112±0.185)mm×(0.038±0.013)mm,respectively.The RCI of the isolate in mouse and pig were(112.0±59.65) and 142.5,respectively,with a mean NBL of(56.76±5.13) per female.The infective muscle larvae of the isolate became dead after 36 h at-32℃or after 60 h at22℃ in pig muscles.The results indicated that the biological characters of the isolate were similar to that of T.spiralis.

Key words: Swine, Trichlycella, Biological characters, Determination

中图分类号: 

• S858.28