From May to November 2013, a total of 1175 wild freshwater fishes were collected from the rivers of Chuoer, Yalu, Wuyuer, Alun, and Yin in Nenjiang River basin Qiqihaer City, and examined for metacercariae by direct compression method. The metacercariae were collected by artificial digestion method. Forty Kunming @entity19 were infected with 30-40 metacercariae of @entity2440 . The @entity19 were sacrificed 36 days after @entity281 , and the adult worms were collected from bile duct, and observed under microscope. The results showed that a total of 1 175 fishes, belonging to nine species were taken from the Nenjiang basin of Qiqihaer region. The @entity281 rate of @entity2440 metacercariae was 51.2% (602/1 175). All the species were infected besides @entity17370 , and the highest prevalence (82.7%, 91/149) was found in Longnose @entity60980 and the lowest (7.1%, 6/84) in Perccottus glenii. Among the rivers, the highest prevalence of metacercariae was in Wuyuer River. (65.7%, 218/332), and the lowest was in Alun River and Yin River (24.1%, 67/278) (P<0.05). Each part of the body in the @entity2083 and @entity12109 were susceptible for metacercariae. The main @entity281 site in Longnose @entity60980 was the fish scales, and @entity2441 metacercaria was first discovered in the brain tissue of @entity68695 . The experimental results showed that the adult worms of @entity2441 were found in the hepatic bile duct of the @entity19 , with an @entity281 rate of 85.0% (34/40). The suckers, digestive system and reproductive system of @entity2441 were visible clearly.

[Prevalence of metacercariae of XXXX in wild freshwater fishes from Nenjiang River around Qiqihaer City].

@entity17370 :: ('30991', 'Species') :: ['Silurus asotus'] @entity19 :: ('10090', 'Species') :: ['mice'] @entity2441 :: ('143401', 'Species') :: ['C. sinensis'] @entity281 :: ('MESH:D007239', 'Disease') :: ['infection'] @entity2083 :: ('7957', 'Species') :: ['Carassius auratus'] @entity68695 :: ('219677', 'Species') :: ['Phoxinus lagowskii'] @entity2440 :: ('79923', 'Species') :: ['Clonorchis sinensis'] @entity12109 :: ('51549', 'Species') :: ['Pseudorasbora parva'] @entity60980 :: ('27704', 'Species') :: ['gudgeon']
@entity2440 :: (79923,Species) :: ['Clonorchis sinensis']
