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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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