It is well established that @entity840 , @entity95 and @entity35 are equally susceptible to experimental @entity281 with the Chinese @entity8072 , @entity2440 . However, little work has been done on the studies of the host-parasite relationships between the @entity8072 and @entity19 host. The experiments were undertaken to investigate the susceptibility, development and sexual maturity of @entity2440 in @entity19 host. The metacercariae of @entity2441 used in these experiments were isolated from the fish, @entity12109 by digestion technic. And in all these studies the @entity19 weighing around 20 g were commercially purchased and infected with the metacercariae under slightly narcotized condition with @entity4543 . The animals were starved overnight before @entity281 . The mature metacercariae, e.g. 5, 10, 20, 30, 50, 200 were given orally into stomach by means of the @entity691 tubing (intramedic, Clay Adams, Inc.PE-90/S12) respectively to each @entity19 of groups ranging 4 to l5. After various period of @entity281 , the @entity19 liver was first opened along the common bile duct and cut into small pieces for collecting and counting the worms. For the histopathological examination of the liver, the tissue specimens were fixed in @entity406 , sectioned and stained with @entity6175 - @entity1711 . Another experiment was separately set up for the study of egg laying capacity of @entity2441 in @entity19 . The following results were obtained: 1) @entity19 were successfully infected with metacercariae of @entity2441 in all cases of the groups except the group given 5 and 10 metacercariae, in which the @entity281 was not established in one case of each group. Therefore it is assumed that @entity19 are susceptible to @entity281 with this worm. In an earlier period ot @entity281 , the worms were found mostly in common bile duct and intrahepatic biliary passages with same rate, however in later period, they were seen rather in the intrahepatic biliary passages (73 %) than in common bile duct and @entity1085 . The recovery rate of fully matured adult worms (less than 10 %) was lower than that of the average recovery rate of the worms in general (22.3 %). 2)Under same age of @entity281 or even in same host, the size of collected worms showed the great variations. Oral sucker was smaller in size than ventral sucker in the early stage of @entity281 . After 11 days of @entity281 it reversed. The posterior part of body length began to elongate since 5 days after @entity281 , and therefore the ratio of antero-posterior part became l to 3. Fully matured adult worms were only collected after 30 days of @entity281 . The first positive appearance of eggs in feces was on the 17th and 18th day after @entity281 . However, the egg-laying capacity in @entity19 host seemed to be stabilized since 30 days after @entity281 . 3)Histopathologically, the @entity384 of medium to small biliary passages was noted and focal but diffusely scattered @entity39 of the liver cells with scarce inflammatory cells was also observed as well as the hepatocellular degeneration, diffuse vascular congestions and adenomatous proliferationof bile duct.

[The Host-Parasite Relations Of @entity2440 In The XXXX : Studies On The Development Of @entity2441 In @entity19 ]

@entity691 :: ('MESH:D020959', 'Chemical') :: ['polyethylene'] @entity1085 :: ('MESH:D005705', 'Disease') :: ['gall bladder'] @entity39 :: ('MESH:D009336', 'Disease') :: ['necrosis'] @entity19 :: ('10090', 'Species') :: ['mice', 'mouse', 'Mice'] @entity384 :: ('MESH:D002311', 'Disease') :: ['cystic dilatation'] @entity840 :: ('10141', 'Species') :: ['guinea pig'] @entity1711 :: ('MESH:D004801', 'Chemical') :: ['eosin'] @entity95 :: ('9986', 'Species') :: ['rabbit'] @entity406 :: ('MESH:D005557', 'Chemical') :: ['formalin'] @entity2441 :: ('143401', 'Species') :: ['C. sinensis'] @entity281 :: ('MESH:D007239', 'Disease') :: ['infection'] @entity8072 :: ('6192', 'Species') :: ['liver fluke'] @entity4543 :: ('MESH:D004986', 'Chemical') :: ['ether'] @entity2440 :: ('79923', 'Species') :: ['Clonorchis sinensis'] @entity35 :: ('10116', 'Species') :: ['rat'] @entity6175 :: ('CHEBI:5601', 'Chemical') :: ['haematoxylin'] @entity12109 :: ('51549', 'Species') :: ['Pseudorasbora parva']
@entity19 :: (10090,Species) :: ['Mouse']
