[growth and development of metorchis orientalis in chicks and its adult morphology]. | in order to observe the infectivity, growth and development and adult morphology of metorchis orientalis, a total of 40 chicks were experimentally infected with 100 metacercariae respectively, collected from pseudorasbora parva. the worms of various developmental stages were recovered from chicks at 1.5, 3, 5, 7, 9, 11, 14 and 21 days after infection, and they were prepared for morphological observations and measurements. all of the worms were found in the gallbladders of chicks, and their recov ... | 1992 | 1297412 |
[infection status of pseudorasbora parva collected from the sunam stream with metacercariae of metorchis orientalis]. | this study revealed the infection status of p. parva with the metacercariae of m. orientalis in the sunam stream of the nakdong river, a well-known focus of clonorchis sinensis. a total of 60 p. parva were divided into 4 groups by the size (80-90, 70-79, 60-69 and 50-59 mm) and were digested by pepsin-hcl solution in a 36 degrees c incubator. the metacercariae of m. orientalis were collected and counted under a stereomicroscope. a total of 3,885 metacercariae were found, and average number/fish ... | 1991 | 1786256 |
[infection status with trematode metacercariae in the fresh-water fish from chunamchosuchi (pond), uichang-gun, kyongsangnam-do, korea]. | the present study was performed to analyze the infection status of trematode metacercariae in fishes caught from chunamchosuchi (pond) located in uichang-gun, kyongsangnam-do. a total of 130 freshwater fish of 5 species was collected by a fish net and fish traps from november, 1995 to may, 1996. they were examined under a stereomicroscope after artificial digestion with pepsin-hcl solution. a total of 8 species of metacercaria, i.e. clonorchis sinensis, echinochasmus japonicus, cyathocotyle orie ... | 1997 | 9335181 |
infection status with trematode metacercariae in pond smelts, hypomesus olidus. | many koreans usually eat raw pond smelts, hypomesus olidus, in the winter. this study was performed to evaluate the infection status with trematode metacercariae in pond smelts from january 1998 through february 1999. among 1,305 fish collected, 459 were purchased from wholesale dealers in chinchon-gun, chungchongbuk-do, and the rest of them were caught with a casting net in soyangho (lake), taehoman (bay) and paekkokchosuchi (pond). seven species of trematode metacercariae including two unident ... | 2000 | 10743358 |
[survey on encysted cercaria of trematodes from fresh-water fishes in tongjin riverside areas in korea] | in an attempt to clarify the epidemiological feature of distomiasis in tongjin riverside area, the prevalence of distomiasis in the residents and infection rates of the metacercariae in fresh-water fishes were investigated at the upper, middle and lower reaches of the river from january to april 1984. the results obtained were summarized as follows: out of a total of 931 fresh-water fishes which composed of 33 different species, 611 fishes (65.6 %) of 31 species were found positive with digeneti ... | 1984 | 12891012 |
[infestation of larval trematodes from fresh-water fish and brackish-water fish in river hyungsan, kyungpook province, korea] | in order to determine the infestation patterns for metacercaria of digenetic trematodes, several kinds of fresh-water and brackish-water fish were caught in river hyungsan, kyungpook province, korea and examined from march to october in 1983. they were collected by netting, fishig with rod and line, or using the bait of crushed oil cake in transparent plastic bowls, and were dissected into the flesh, scales and fins with tail, and then examined for the presence and infestation density of larval ... | 1984 | 12891035 |
[survey on encysted cercariae of trematodes from fresh-water fishes in mangyeong riverside area] | in order to clarify infestation pattern for the encysted larvae of digenetic trematodes from fresh-water fishes, this survey was carried out from march to september, 1983. a total of 380 fishes of 32 species were collected with netting at the three reaches, upper, middle and lower in mangyeong riverside area. after the fishes were dissected into small scraps, they were pressed under cover glass and examined for the presence of those of digenetic trematodes with a microscope. the results obtained ... | 1983 | 12902648 |
[infestation of larval trematodes from fresh-water fish and brackish-water fish in river taechong, kyungpook province, korea] | a study of infestation patterns for larval trematodes from fresh-water fish and brackish-water fish was carried out during the period from june to october in 1982. they were collected by netting, fishing with rod and line, and using the bait of crushed oil cake in a transparent plastic bowls at the three localities, daebon-dong, kugil-dong, and hoam-dong in the river taechong, kyungpook province, korea. five species of fresh-water fish, the crussian carp, carassius carassius linnaeus, the bullhe ... | 1983 | 12902663 |
epidemiological studies of clonorchis sinensis in vicinity of river taewha, kyungnam province, korea. | in order to determine the epidemiological patten of the liver fluke, clonorchis sinensis, the locality where the snail, parafossarulus manchouricus, is abundant, the infestation rates for the cercarial and metacercarial larvae of digenetic trematodes in the snail and fish hosts, and the prevalence of clonorchis sinensis among the residents in the vicinity of river taewha, kyungnam province, korea were studied from march 1979 to september 1980. four snail habitats were found in the river taewha. ... | 1980 | 12902731 |
[studies on the metacercariae from fresh water fishes in the kum-ho river] | the distribution and the infestation rates of metacercariae in fishes from the kum-ho river were observed from june 1965 to august l967. the results obtained are as follows: 1)the fourteen kinds of metacercariae; exorchis oviformis, metorchis orientalis, cyathocotyle species, metacercaria hasegawai, clonorchis sinensis, metagonimus species, pseudexorchis major, echinochasmus species, centrocestus species, prosorhpynchus species, and four kinds of unidentified species, a, b, c and d were detected ... | 1968 | 12913543 |
[a national survey on current status of the important parasitic diseases in human population]. | in order to understand the current status and trends of the important parasitic diseases in human population, to evaluate the effect of control activities in the past decade and provide scientific base for further developing control strategies, a national survey was carried out in the country (taiwan, hongkong and macau not included) from june, 2001 to 2004 under the sponsorship of the ministry of health. the sample sizes of the nationwide survey and of the survey in each province (autonomous re ... | 2005 | 16562464 |
[survey on the current status of important human parasitic infections in fujian province]. | to understand the prevalence of important human parasitic diseases in fujian province. | 2005 | 16562479 |
[survey on natural nidus of metorchis orientalis in huaihe river basin]. | parafossarulus striatulus, pseudorasbora parva and brood ducks are involved in the lifecycle of metorchis orientalis. natural nidi of m. orientalis are confirmed in huaihe river basin. | 2006 | 16866154 |
notes on the study of life-cycle of metorchis orientalis and m. taiwanensis. | | 1948 | 18885925 |
fish-borne zoonotic trematode metacercariae in the republic of korea. | the prevalence of fish-borne trematodes (fbt), including clonorchis sinensis, is still high in riverside areas of the republic of korea. the author reviewed the detection and identification methods, differential keys, fish intermediate hosts, and morphological characteristics of fbt metacercariae. fbt metacercariae found in freshwater fish are classified mainly into 4 families, i.e., opisthorchiidae, heterophyidae, echinostomatidae, and clinostomidae. the metacercariae of c. sinensis, found in 4 ... | 2009 | 19885326 |
the complete mitochondrial genome of metorchis orientalis (trematoda: opisthorchiidae): comparison with other closely related species and phylogenetic implications. | metorchis orientalis (trematoda: opisthorchiidae) is an important trematode infecting many animals and humans, causing metorchiasis. in the present study, the complete mitochondrial (mt) genome of m. orientalis was sequenced. the complete mt genome of m. orientalis is 13,834 bp circular dna molecule and contains 12 protein-coding genes, 22 transfer rna genes, and two ribosomal rna genes. the gene content and arrangement of m. orientalis is the same as those of opisthorchiidae trematodes (opistho ... | 2016 | 26805437 |
[metorchis orientalis founded in basin of wuhu city, anhui province]. | to investigate the epidemic situation of metorchis orientalis in wuhu city, anhui province. | 2015 | 26510365 |
changing patterns of infection with digenetic larval trematodes from fresh-water fish in river taewha, kyongnam province. | recent patterns of infection with digenetic larval trematodes in fresh-water and brackish-water fish were studied in three locations of the river taewha during the period from april to october 1988, and compared with the data reported previously in the same river. of 16 species of fish examined, the encysted larvae of cyathocotyle orientalis were found most frequently from 9 species of fresh-water fish. the metacercariae of echinochasmus sp., metacercaria hasegawai and metagonimus yokogawai were ... | 1988 | 12811040 |
[studies on the life histories of three species of heterophyid trematodes and metorchis orientalis tanabe, 1921]. | | 1985 | 4006108 |
trematode metacercariae in freshwater fish from water systems of hantangang and imjingang in republic of korea. | the infection status of freshwater fish with digenetic trematode metacercariae was examined in water systems of hantangang and imjingang (river), the republic of korea. a total of 877 (594 from hantangang and 283 from imjingang) fishes were examined by the artificial digestion methods. clonorchis sinensis metacercariae were detected in 7 (1.2%) fishes (in 3 spp.) from hantangang in cheorwon-gun, gangwon-do, and 40 (14.1%) fishes (in 7 spp.) from munsancheon in paju-si, gyeonggi-do. the average d ... | 2015 | 26174822 |