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KMID : 03772198019800000129
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Medical Journal of Chosun Univercity
1980 Volume.5 No. 1 p.129 ~ p.136
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Study on the intermediate host of Metagonimus spp. in Seom-jin and Tam-jin rivers.
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朴京松/Park, Gyong Song
文宰奎/鄭耀翰/Moon, Jae Gyu/Chun, Yo Han
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Abstract
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From the 1st of June to the 31th of August, 1979, studies on Metagonimus spp. were carried out on the intermediate hosts, that live in Seom-jin and Tam-jin rivers. Total 941 snails (Semisulcospira sp.) and total 76 sweetfishes (Plecoglossus altivelis) were collected from four areas in the surveyed rivers All of the snails were examined by crushing method to evaluate the infection rate with rediae and cercariae of Metagonimus spp. from digestive gland of the snails. All of the sweetfishes were examined for the presence of metacercarise of Metagonimus spp. They were separately digested with artificial gastric Juice for 24 huors in 36.5℃. The isolated metacercariae of Metagonimus spp. from each sweetfish were counted under microscope.
1. Cercariae of Metagonimus spp. from the 1st intermediate host, Semisulcospira sp., in Seom-jin river was detected from 89 snails (21.5%) out of 527 examined. In Tam-jin river was detected from 83 snails (15.7%) out of 527 axamined. from 89 snalls (21.5%) out of 527examioed. In Tam-Jin river was detected from 83 snails (15.7%) out of 527 examined.
2. All of 33 plecoglossus altivelis which were caught from Seom-jin river were infected with metacercariae of Metagonimus spp. and the mean number per fish was 23,389 and per gram of fish muscle, 316.
3. All of 43 Plecoglossus altivelis which were caught from Tam-jin river were infected with metacercariae of Metagonimus spp. and the mear, uumber per fish was 18,405 and per gram of fish muscle, 244.
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