摘要:
为探明在福建省古田县采集到的一批从椭圆萝卜螺中检出的梨形囊蚴是何种吸虫的幼虫,对感染组4只20日龄半番鸭各灌服100个该囊蚴进行人工感染试验。结果显示:在每只感染鸭直肠内均检出平均数量为52条,大小为(2.21~3.30)mm×(0.70~0.85)mm的吸虫。该虫体分前后体二部分,前体呈杯状,有口吸盘、咽、假吸盘、腹吸盘等结构;后体呈弯月形或短圆柱形,有2个呈深分叶状的睾丸、1个卵巢以及储精囊、卵黄腺、虫卵等结构,经鉴定为波阳拟枭形吸虫。试验结果表明:福建省是中国存在该吸虫的第2个省份,椭圆萝卜螺是该吸虫的第二中间宿主,从囊蚴发育到成虫的时间为5d。
Abstract:
To identify a batch of metacercariaes detected from those Radix swinhoei collected in Gutian,Fujian,an artificial infection trial was carried out by using 100 metacercariaes to infect each of four mule ducks at 20 days of age.The result showed that the trematodes,(2.21~3.30)mm ×(0.70~0.85)mm in size,were detected from the rectums of each duck with the average number of 52.The body of the trematode contained 2parts,front and rear.The forepart was cup-shaped,containing oral sucker,pharynx,ventral sucker and false sucker;the rear part was falcate or short cylindrical,containing two lobulated testicles,one oarium,seminal vesicle,yolk gland and eggs.Therefore,the trematode was identified as Pseudostrigeapoyangensis.This trial confirmed that Fujian was the second province in which the trematode existed and the Radix swinhoei was the second intermediate host of the trematode,while the developing time from the metacercariaes to the adult was 5days.
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