Publications

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action of hexachloroethane-bentonite suspension on the rumen fluke, paramphistomum. 194918114816
a new species of paramphistomum from scottish cattle. 195015404731
[infestation of bulinus contortus with cercaria schistosoma bovis (sonsino, 1876) and with paramphistomum cervi (schrank, 1790) in various seasons of the year]. 195313160216
the life cycle of paramphistomum microbothrium fischoeder, 1901 (trematoda, paramphistomidae). 195413214899
paramphistomum sukari n. sp. from kenya cattle and its intermediate host. 195413214916
the discovery of paramphistomum hiberniae willmott, 1950 and its intermediate host in the channel islands. 195513263552
development of paramphistomum sukari dinnik, 1954 (trematoda: paramphistomidae) in a snail host. 195713441318
[retention of the genus bothriophoron stiles and goldberger, 1910, and restoration of the species paramphistomum bothriophoron, (braun, 1892) fischoeder, 1901, (trematoda, paramphistomatidae), a parasite of the reticulum of the madagascan zebu]. 195813571715
paramphistomum phillerouxi sp. nov. paramphistomatidae) and its development in bulinus forskalii. 196113723003
a study on paramphistomum microbothrium in khuzistan, s.w. iran. 196214013712
[further inquiries on paramphistomosis (paramphistomum cervi) in sardinia]. 196314123058
paramphistomum sukumum sp.nov. and other stomach-flukes from cattle in the sukumaland area of the lake region, tanganyika. 196414170212
[metabolism of c(14)-acetate by some trematodes]the adult trematodes, fasciola hepatica, eurytrema pancreaticum and paramphistomum cervi, employed in this experiment were obtained from the cattle slaughtered at the local abbatoir. the worms selected and washed several times in normal sterilized saline solution. each about ten of intact f. hepatica, fourty of e. pancreaticum, and twenty of p. cervi were incubated in 50 cc volume of special incubation flasks with incubation medium consisting of 10 cc. of krebs-ringer phosphate buffer(ph 7.4) th ...196512913583
[metabolism of c(14)-glucose by paramphistomum cervi]the trematode paramphistomum cervi empolyed in this experiment was obtained from the reticulum of cattle slaughtered at the local abbatoir. the worms were selected and washed several times in normal sterilized saline solution. each about ten of intact worms were incubated in 50 cc volume of special incubation flasks with incubation mixture consisting of 50 cc of krebs-ringer phosohate buffer (ph 7.4) to which were added universally labeled c(14)-glucose and non-radioactive carrier glucose concen ...196512913589
studies on transaminase reactions in some parasitic helminths.by an application of sigma-frankel methods, two transaminase systems, glutamic-pyruvic transaminase and glutamic-oxaloacetic transaminase, were found to operate at a mesurable rate in 2 species of nematodes(ascaris lumbricoides and ascaridia galli), 5 species of trematodes (clonorchis sinensis, fasciola hepatica, eurytrema pancreaticum, paramphistomum cervi and paragonimus westermani) and 5 kinds of cestodes (diphyllobothrium mansoni, dipylidium caninum, taenia pisiformis, cysticercus cellulosae ...196612913567
[studies on phosphatase activity in some parasitic helminths]in order to obtain some informations on the nature and relative activity of the phosphatases present in various helminths, biochemical studies have been made in thirteen kinds of worm parasites including the adults and larvae (fasciola hepatica, eurytrema pancreaticum, paramphistomum sp., taenia solium, taenia pisiformis, dipylidium caninum, diphyllobothrium mansoni, cysticercus cellulosae, cysticercus fasciolaris and sparganum). a comparison based on the analysis of ph-activity curves was made ...196712913552
[on the biology of paramphistomum ichikawai fukui]. 19675618667
host-parasite relationships of paramphistomum microbothrium fischoeder, 1901, in experimentally infested ruminants, with particular reference to sheep. 19675626000
a study of the epidermal structures of the miracidia of calicophoron calicophorum (fischoeder, 1901) näsmark, 1937 and paramphistomum microbothrium (fischoeder, 1901). 19676051887
anthelmintic efficacy of 2,6-dihydroxybenzoic acid-4'-bromanilide (hoe 296 v) against mature and immature paramphistomum microbothrium in goats. 19695381635
pathological lesions in livers of two indian sambars (cervus unicolor niger) infected with paramphistomum explanatum creplin, 1847; nasmark, 1937 gigantocotyle explanatum. 19695389383
geographic distribution of gongylonema pulchrum, gongylonema verrucosum, and paramphistomum liorchis in white-tailed deer of the southeastern united states. 19705461089
histochemical observations on the spermatogenesis of the trematode, paramphistomum (explanatum) bathycotyle. 19705487417
[intestinal paramphistomiasis in ruminants. experimental infection of sheep with metacercariae and immature forms of paramphistomum cervi (schrank, 1790)]. 19705530163
gametogenesis in paramphistomum microtothrium fischoeder, 1901. 19715569879
[epizoological survey on infestation rate of helminths in korean native cattle]the authors made a study on the species and distribution of helminths in korean native cattle. the feces and internal organs from 1,755 heads were examined in slaughter plants of taejon district. the results are summarized as follows. 1. distribution and infestation rate of helminths among the collected samples are, paramphistomum spp. 68.4%, fasciola spp. 48%, eurytrema spp. 23.5%, moniezia spp. 8%, dictyocaulus spp. 3.5%, trichostrongylus spp. 12.4%, and other species 26.8%, respectively. 2. i ...197112913616
trials with rafoxanide. 5. efficacy studies against fasciola hepatica, fasciola gigantica, paramphistomum microbothrium and various nematodes in sheep. 19724670768
[intermediate hosts of paramphistomum sp]. 19725026996
on the species of paramphistomum of cattle and sheep in hungary. 19744420761
contribution to the morphology and distribution of paramphistomum microbothrium fischoeder, 1901 in cattle and sheep in the balkans. 19744452489
[changes in the composition of bovine serum during invasion by distomata genus paramphistomum and fasciola hepatica]. 197549982
phosphatase systems in paramphistomum explanatum fischoeder, 1901.extracts of adult paramphistomum explanatum have been shown to contain high concentration of acid phosphomonoesterase with maximum activity at ph 4.5. the enzyme has been characterized by an exhibition of an unexpected increase in the inhibitory action of a mercury at 1 mm concentration by edta. with a lower concentration of mercury (0.1 mm and below) edta gave partial protection against inhibition. different concentrations of magnesium and cobalt activated the enzyme while fluoride, copper, ars ...1975238347
[clinical examination of the blood of roe deer (capreolus capreolus l.) and fallow deer (dama dama l.) naturally invaded by parasites].roe-deer (capreolus capreolus l. -- five animals) and fallow deer (dama dama l. -- eleven animals) of both sexes and at different age were subject to blood examination. the deer were killed in several preserves in bohemia during autumn and winter shootings in two years. the following blood values were determined: erythrocyte count, leucocyte count, hemoglobin content, hematocrit values, mcv, mch, mchc, white blood picture, total protein, its fractions (albumin, alpha-, beta-, and gamma-globulin) ...1975809892
[clinical examination of the blood of red deer (cervus elaphus l.) naturally infested with parasites].in six animals hunted and four immobilized animals of red deer (cervus elaphus l.) of both sexes and of different age, kept at three game preserves in bohemia, the psychological values were ascertained: the number of erythrocytes and leucocytes, the hemoglobin content, the hematocrit, mcv, mch, mchc, the white blood count, the total serum protein, the fractions: albumin, alpha-, beta- and gamma-globulin, the activity of sgot, and sgpt, the alkaline phosphatase and the metabolism of calcium, phos ...1976820034
histochemical localization of alkaline phosphatase in the trematode paramphistomum cervi (paramphistomidae). 1976992820
trematodes of domestic ruminants of afghanistan and their role in pathology.seven trematode species were found in the bile ducts and rumen of domestic ruminants: fasciola gigantica, f. hepatica, gigantocotyle explanatum, g. siemense, paramphistomum epiclitum, fischoederius cobboldi and gastrothylax cruminifer. the parasites caused marked pathological changes in the liver and rumen.19761010490
studies on the stomach flukes of buffalo in egypt (trematoda: paramphistomata).three amphistomous species, paramphistomum gotio fukui, 1922; paramphistomum microbothrium fischoeder, 1901 and carmyerius gregarius (looss, 1896) have been found as a result of the investigation of stomach flukes of buffalo in egypt. specific status of paramphistomum gotoi, variability of paramphistomum microbothrium collected in different egyptian domestic ruminants and histological structure of the muscular organs of carmyerius gregarius have been examined.19761010492
[effectiveness of terenol-hoechst and zanil-ici in the control of paramphistomum sp. in cattle]. 19761017564
life-cycle and geographical distribution of paramphistomum daubneyi dinnik, 1962 (trematoda: paramphistomata). 1977754531
enteric paramphistomiasis in yankasa sheep.an outbreak of acute enteric paramphistomiasis was observed among yankasa (indigenous) sheep that were herded with cattle on the university farm at samaru in february 1973. mortality was approximately thirty to forty per cent. the most important clinical signs were anorexia, unthriftiness and profuse foetid diarrhoea soiling the perianal region and hind legs. diagnosis was based on the post-mortem findings, clinical signs and presence of conical flukes identified as paramphistomum microbothrium.1977906085
[studies of the decontamination of the sewage from animal husbandry farms].investigations revealed that under the conditions prevailing in the districts of sofia and .pernik ascaris suum and trichocephalus suis eggs remained viable at the conventional storage of liquid manure on the large farms for about a year, and fasciola hepatica and paramphistomum sp. eggs--for 2 to 3 months. the methods of electrocoagulation and electroflotation could be employed with success in the cleansing and rendering harmless of the sewage waters after the preliminary treatment with calcium ...1977919336
trials with rafoxanide. 8. efficacy of an injectable solution against trematodes and nematodes in cattle.four experiments are described in which the efficacy of an experimental 5% injectable solution of rafoxanide was evaluated against various adult and immature helminths in cattle. subcutaneous injection at a dosage of 3 mg/kg live mass resulted in the following reductions in mean worm burdens: adult fasciola hepatica, 82,6%; adult fasciola gigantica, 99,8% immature paramphistomum microbothrium, 10,1% adult haemonchus placei, 99,6%, third stage h. placei, 73,7%; adult bunostomum phlebotomum, 99,8% ...1977144191
[contribution to the biology and pathogenicity of domestic omasal leech paramphistomum cervi. 1. developmental stages in the free state and in the intermediary host]. 1977588222
trematodes of the genus paramphistomum fischoeder, 1901 in ruminants of poland. 1977589497
schistosoma mattheei in the ox: the serological response.thirty friesian steers were infected with schistosoma mattheei and the antibody response was followed for up to 76 weeks by the complement fixation (cf), indirect haemagglutination (ih) and indirect immunofluorescent (if) tests. cf and if antibodies rose to a peak at about 25 weeks and then fell, while ih antibodies rose more slowly and remained high. peak ih and if titres were proportional to the level of infection. peak cf titres were reduced in animals on a low plane of nutrition. there was a ...1977605296
[contribution to the biology and pathogenicity of the endemic rumen flatworm paramphistomum cervi. 2. occurrence in pasture cattle grazing in marshy areas]. 1978629734
[biology and pathogenicity of the domestic ruminal fluke paramphistomum cervi. 3. development in cattle, sheep and deer]. 1978629739
experimental studies on the suitability of aquatic snails as intermediate hosts for paramphistomum cervi in iraq.three of the most common species of aquatic snails in iraq were examined for their susceptibility to infection with paramphistomum cervi. bulinus truncatus was the only susceptible species. no development occurred in physa acuta or lymnaea lagotis euphratica. these findings and a previous field observation that infection of b. truncatus with amphistome larvae is not uncommon indicate that b. truncatus is an intermediate host of p. cervi in iraq. young snails of b. truncatus were more susceptible ...1978666386
histochemical distribution of acetyl & butyryl cholinesterase in the tissues of a trematode paramphistomum cervi. 1978721155
[life cycle of paramphistomum togolense n. sp. (trematoda, paramphistomidae)].mature worms were obtained from a sheep experimentally infested with metacercariae issued from cercariae emitted by naturally infested snails: bulinus (bulinus) forskalli collected near lomé (togo). miracidia were used for infection of these laboratory-reared snails which gave numerous cercariae. larval stages are studied. morphological and histological characters of the adult and the very peculiar shape of the sporocyst distinguish this trematode from the other known species of the genus. the s ...1978742803
effect of some--sh and other reagents on aspartate aminotransferase and l-alanine aminotransferase of paramphistomum explanatum fischoeder, 1901.studies on aspartate aminotransferase (got) and l-alanine aminotransferase (gpt) of paramphistomum explanatum have shown that gpt activity has more than twice the activity of got. the effect os some--sh reagents like cadmium, mercury, silver and iodoacetamide revealed that both enzymes were inhibited except that got was insensitive to cadmium ions. gpt was found to be much more sensitive to--sh reagents than got. there was unusual reaction to the two thiols used, cysteine and mercaptoethanol. cy ...1978418589
[dissemination of fasciola hepatica in cattle of novara province].the diffusion of f. hepatica in the cattle of the novara province was studied by means of a necroscopic survey on 2184 regularly slaughtered animals and a copro-microscopic survey on 5063 feaces samples picked up from 162 breedings farms. the 28.40% of the slaughtered animals resulted infected with f. hepatica. the parasite also resulted present in 52.74% of the examined breeding farms. a large diffusion of paramphistomum sp. was shown, too. the diffusion areas of these trematodes may be seen in ...1978553277
parasites in bulinus senegalensis (mollusca: planorbidae) and their detection.isoelectric focusing studies on enzyme variation between populations of the snail bulinus senegalensis revealed that parasitic infections in the snails contributed additional bands of enzyme activity, particularly in the glucose phosphate isomerase (gpi) and malate dehydrogenase (mdh) systems. the patterns due to the parasite enzymes were, in most cases, clearly distinct from those of the host and different from each other. parasites encountered included schistosoma haematobium, s. bovis, paramp ...197944358
annual maturation of paramphistomum cervi (trematoda: paramphistomatidae) in moose, alces alces l. 1979540274
[immunoelectrophoretic studies of several helminths]in an attempt to investigate the antigen-antibody relations and the value of immunodiagnosis for several helminths, ouchterlony tests and immunoelectrophoreses were carried out. taenia saginata, cysticercus sp. of cestodes, clonorchis sinensis, fasciola hepatica and paramphistomum sp. of trematodes,and ascaris suum of nematodes were used as antigens. on the other hand, antisera were obtained by injecting 0.5 ml each of the above antigens and the same amount of complete freund's adjuvant into rab ...197912902755
[immunoelectrophoresis for fasciola hepatica]in an attempt to investigate the specific antigenic substance of fasciola hepatica, ouchterlony tests and immunoelectrophoretic analyses were carried out. crude fasciola antigen was prepared and fractionated by sephadex g-200 column to antigen i, ii and iii according to protein content. crude antigens of paragonimus westermani, clonorchis sinensis and paramphistomum sp. were also prepared for control and absorption study. antiserum was prepared by injecting 0.5 ml of crude fasciola antigen with ...197912902763
[problems in the differential diagnosis of the species paramphistomum daubneyi dinnik 1962 and paramphistomum microbothrium fischoeder 190].the taxonomic meaning of the morphological features of helminths is of paramount importance for their differential diagnostics. however, they should not be conceived as absolute, especially wih regard to trematodes such as p. daubneyi and p. microbothrium, similar not only on the basis of their morphological features but also with regard to their ultimate host-receivers as well as their geographical spreading. it is pointed out that for the differentiation of the above two types one has to take ...19807210495
[presence in france of paramphistomum leydeni näsmark, 1937 (trematoda:paramphistomata) (author's transl)].the authors point out, for the first time, the presence of paramphistomum leydeni näsmark, 1937 in the rumen of cattle originating from loire-atlantique and camargue. the parasite is briefly described again and its systematic position is discussed.19807224534
study of phosphagens in two trematodes.extracts from the adults of two trematodes fasciola gigantica and paramphistomum explanatum have been shown to contain three phosphagens, phosphoarginine, phosphocreatine, and phosphoglycocyamine. the three phosphokinases involved in the transphosphorylation of these phosphagens in both worms were inhibited by edta and mercuric ions while iodoacetate had no effect.19806245542
cytochemical studies on the prostate glands of the trematodes, paramphistomum epiclitum and paradistomoides orientalis.pear-shaped prostatic gland cells which surround the ejaculatory duct of paramphistomum and paradistomoides, secrete two types of products: (i) granules which are cytochemically complex containing lipids, proteins and polysaccharides (1:2, glycol groups) and (ii) globules which contain phospholipids only. the cytoplasm of these cells, in addition to high acid phosphatase activity, also contains rna, proteins and polysaccharides.19806164713
[superficial argentophilic structures of miracidium and cercaria of paramphistomum phillerouxi dinnik, 1961 (trematoda, paramphistomidae) (author's transl)].superficial argentophilic structures of the miracidium and cercaria of paramphistomum phillerouxi dinnik, 1961, are descrifed in detail. concerning the miracidium they are similar to those of the miracidia of some species belonging to the genus. on the other hand the chaetotaxy of the cercaria is different from that of the cercaria of p. togolense (alberet et coll., 1978) and therefore this appears to constitute a good criterium for the taxonomy of this group.19816167192
[argyrophilic integumentary structures of the miracidium, redia and cercaria of paramphistmun daubneyi dinnik, 1962 (trematoda, paramphistomidae)].paramphistomum microbothrium and p daubneyi are two sibling-species. the value of morphological criteria which have been used to distinguish the adults is not accepted by all authors. on the contrary, criteria based upon larval stages, except miracidia, permit an easy diagnosis. p. microbothrium parasitizes bulinids, the rediae have a long intestine, germ-balls are inequal in size, cercariae are long-tailed and possess numerous lateral somatic bristles: about 9 by a half-body and numerous caudal ...19816167193
[immunodiffusion studies of the complete somatic antigens of paramphistomum sp. and fasciola hepatica].investigations were carried out through the agar gel immunodiffusion test of complete somatic antigens of paramphistomum sp. and fasciola hepatica, using the respective homologic and heterologic hyperimmune rabbit sera. differences were established in the spectrum and number of the produced precipitation lines - 6 to paramphistomum and 4 to fasciola. with the identity test by the scheme in three after zilber and abelev (1962) no precipitation arcs were formed against the heterologic hyperimmune ...19816172897
studies on amphistomiasis in andhra pradesh (india) vi. immunization of lambs and kids with gamma irradiated metacercariae of cercariae indicae xxvi.the life span and the pathogenicity of amphistomes developing from cercariae indicae xxvi (paramphistomum epicilitum) were considerably reduced when the metacercariae were gamma-irradiated at 2 krad or 3 krad. the higher irradiation dose resulted in the complete absence of the flukes in infected animals. single vaccination of lambs and kids with 3000 metacercariae irradiated at 2 krad or 3 krad stimulated a significant degree of resistance against challenge with 5000 non-irradiated metacercariae ...19817229328
the effect of five fasciolicides on malate dehydrogenase activity and mortality of fasciola gigantica, fasciolopsis buski and paramphistomum explanatum.the effect of oxyclozanide, hexachlorophene, nitroxynil, rafoxanide and diamphenethide on malate dehydrogenase activity of homogenates of fasciola gigantica, fasciolopsis buski and paramphistomum explanatum was investigated. the ratio of oxaloacetate reduction to malate oxidation in homogenates of fasciola gigantica, fasciolopsis buski and p. explanatum was 4.5:1, 3.6:1 and 5.2:1 respectively. oxyclozanide and rafoxanide at 10(-3) m inhibited enzyme activity by 100% in homogenates from all three ...19817264272
stereocan observations on the surface topography of gastrothylax crumenifer (creplin, 1847) poirier, 1883 and paramphistomum epiclitum fischoeder, 1904 (trematoda: digenea).the critical-point-dried specimens of gastrothylax crumenifer (creplin, 1847) poirier, 1883 and paramphistomum epiclitum fischoeder, 1904, both recovered from the rumen of sheep, were studied by scanning electron microscopy at magnifications ranging from 10 to 10,000x to reveal the structural differences of the tegument between the two species. in g. crumenifer, both dorsal and ventral surfaces have tubercle-like tegumental elevations, devoid of spines. a row of prominent, regularly arranged, bu ...19817276508
[method for obtaining paramphistomum daubneyi, dinnik, 1962 metacercariae].miracidium ova were obtained from the feces of a ram that was experimentally infected with paramphistomum daubneyi. the fecal masses were extended in the respective amount of water and were passed through a standard sieve, 0.150 and 0.080. the ova were collected in the second sieve, and were rinsed several times after the method of successive sedimentation. they were cultured in a thermostat at 26 degrees c in the course of 12 days. test molluscs of the g. truncatula species (a laboratory strain ...19817303483
[development of paramphistomum cervi from miracidium to metacercaria]. 19817337647
paramphistomum microbothrioides in american bison and domestic beef cattle.intestinal paramphistomiosis was diagnosed in a bull and cow with severe diarrhea and weight loss, and subsequent investigation suggested that the infection was transmitted from american bison (bison bison). the rumen fluke, paramphistomum microbothrioides, was recovered from the rumen of 3 bison on the farm or origin. single operculate eggs of p microbothrioides measuring 130 x 69 micrometers were recovered from the feces of the bull, from 9 of 10 bison, and from 3 of 9 other beef cattle. snail ...19817341559
[an epidemiological study on zoonoses in korea]helminthic zoonoses are of significant importance to the public health and to the socioeconomic consequences especially in lost-meat, animal products and animal labor. for past several decades in korea, it has been recognized that endoparasitic infections among domestic animals are extremely common and many of the helminth parasites of man have been acquired from, or are shared with domestic animals. however, there was no survey of a nationwide scale on the prevalence of animal helminthiasis; an ...198112902720
seasonal incidence of helminths in sheep and goats in south mozambique.the seasonal fluctuations in faecal worm egg counts were studied at monthly intervals for over a year in 20 male sheep and goats on extensive grazing tracts at a farm near maputo, mozambique. larval differentiation from faecal cultures showed that haemonchus contortus and oesophagostomum columbianum were the most prevalent worm species. trichostrongylus colubriformis, cooperia spp., strongyloides papillosus, moniezia spp., paramphistomum spp. and trichuris spp. also occurred. after the onset of ...19826892176
bovine fascioliasis in nigeria--intercurrent parasitic and bacterial infections.the bacterial and parasitic infections associated with field cases of bovine fascioliasis due to fasciola gigantica were investigated; 47.6% of infected cattle had blood parasites, 61.9% had faecal-borne parasites and 85.8% had positive bacterial isolates in the bile in contrast to 13.3% with blood parasites, 71.1% with faecal-borne parasites and 28.9% positive for bile bacteria among uninfected cattle. trypanosoma spp., babesia, paramphistomum and schistosoma were the most commonly found parasi ...19827101464
the seasonal incidence of helminth parasites of cattle in the eastern transvaal lowveld.two helminth-free tracer calves were exposed to natural helminth infestation of a farm in the eastern transvaal lowveld for one month. on a nearby farm calves grazed with the herd for at least 3 months before slaughter so that the cumulative worm burden could be determined. the gastro-intestinal parasites increased markedly after rain. the major species and order or prevalence were: cooperia pectinata, cooperia punctata, haemonchus placei and oesophagostomum radiatum; minor species were bunostom ...19827175905
[study of the therapeutic efficacy of nilsan preparation against paramphistomatidae and nematode infections in sheep].experiments were carried out with the preparation nilsan (oxiclozanide + levamizal) in the treatment of sheep with fasciola, dictyocaulus, and trichostrongylus infection. the trials involved a total of 2782 sheep on two sheep-breeding farms, constituting 15 flocks. the liveweight of the adult animals ranged from 40 to 60 kg, and that of the year-old female ones--from 40 to 45 kg. the daily ration on the two farms did not differ essentially from that offered to the animals in the past 2-3 years. ...19827179728
[cattle-associated infections caused by balanorchis anastrophus fischoeder, 1901 and paramphistomum sp. (trematoda, paramphistomidae) in rio grande do sul, brazil]. 19827182861
[occurrence of paramphistomum in poland cattle]. 19827183010
[the incidence of flukes of the genus paramphistomum in czechoslovakia].an effort was made to evaluate objectively all findings on the variability of fluke of the family paramphistomatidae and to give a clear survey on the species occurring in this country in order to be able to control it successfully in the case of widespread occurrence of paramphistomatosis or its intermediate hosts. the individual fluke species have specific intermediate hosts and a correct determination can make preventive measurements easier. three species of rumen fluke live parasitically in ...19826814041
effects of carbon dioxide, temperature, ph and the number of worms on the in vitro survival, histology and histochemistry of paramphistomum cervi (paramphistomatidae: digenea).survival of immature and mature stages of paramphistomum cervi, collected from the intestine and the rumen of sheep has been studied in in vitro using tyrode's, hank's, eagle's, stephenson's saline and hedon--fleig media. twenty-five ml quantities of carbon dioxide (co2)-rich hedon--fleig solution at ph 6.7, at 37 degrees c supported the maximum survival of 5 worms of both immature and mature flukes for periods of 9 and 10 days, respectively. alterations to the ph of the medium, the incubation t ...19826819682
failure of a bovine strain of paramphistomum microbothrium to survive in the rumen of sheep. 19836836173
role of oesophageal glands in the digestive physiology of two rumen amphistomes orthocoelium scoliocoelium and paramphistomum cervi.histochemical techniques have been used to study the chemical composition of the oesophageal gland secretions of orthocoelium scoliocoelium and paramphistomum cervi. results suggest that the secretions contain numerous enzymes, e.g., non-specific alkaline and acid phosphatases, atpase, tppase, esterase (cathepsin c like), beta-galactosidase, beta-glucuronidase and n-acetyl-beta-glucosaminidase. the role of these enzymes in the digestion of food in these amphistomes is discussed. on the basis of ...19836841957
morphological and histochemical observations on the oocapt and oviducal transport of oocytes in paramphistomum cervi (zeder, 1790) (digenea: trematoda).the oocapt of paramphistomum cervi has a narrow constriction followed by a wide lumen with a thickened wall and is surrounded by several unicellular flask-shaped gland cells opening into the lumen. the oocapt gland cells are filled with granules, the size and number of which vary in the body cells and its duct. histochemical studies have shown that the oocapt gland cells secrete mainly mucoproteins but a few lipoprotein and phospholipid granules have also been observed. the passage of the oocyte ...19836875252
[biology of paramphistomum petrowi--a parasite of axis deer in the maritime territory].experiments have shown that developmental period of eggs of p. petrowi under humid conditions depends directly on temperature. at 30 c their development is over in 8, at 26-27 c in 14 and at 18.5 c in 40 days. under natural conditions at daily average temperature of 17.5 c the hatching of miracidia occurred in 52 days. intermediate host of this trematode in a zone of park deer breeding is a freshwater mollusc of the family planorbidae, anisus minusculus. the development of parthenites in the int ...19836622060
[argyrophilic structures of the larval forms of 2 strains of paramphistomum microbothrium: 1 a parasite of isidora guernei and ovis aries, the other a parasite of isidora truncata and bos taurus].the life cycle of a paramphistome from north senegal is completed starting from cercariae shed by naturally infected isidora guernei: a sheep and then uninfected isidora guernei were successively infected experimentally. adults obtained were identifiable as p. phillerouxi or as p. microbothrium. species determination cannot be made on the basis of argentophilic structures in the miracidium. morphology of sporocysts and rediae differs from that observed in p. phillerouxi but is undistinguishable ...19836660795
[what is paramphistomum cervi?].it is proved histologically that lacking of tegumented papillae in paramphistomum cervi is based on the alteration of the tegument furnished with papillae in the normal state. the differences in the dorsal extension of the vitellaria, in the histological structure of the genital opening complex and in other features, used by eduardo (1982) for the division of p. cervi into 3 species, are refuted as not existing. therefore the forms p. leydeni, p. scotiae and p. hiberniae remain well established ...19836666870
some helminth and arthropod parasites of the grey duiker, sylvicapra grimmia.sixteen grey duikers were culled on the farm riekert 's laager in the central transvaal at irregular intervals from may 1979-march 1981. one trematode species, 3 cestode species and 16 nematode species were recovered from these animals. of these the following are new helminth records for this antelope: cooperia hungi , cooperia neitzi , cooperia pectinata , trichostrongylus axei, trichostrongylus colubriformis, trichostrongylus falculatus , trichostrongylus instabilis , impalaia tuberculata , ne ...19836676685
[superficial argentophilic structures of miracidia and cercaria of paramphistomum leydeni nasmark 1937].the life cycle of paramphistomum leydeni näsmark, 1937, is carried out in the laboratory. adults were obtained from the rumen of a naturally infected bos taurus in czechoslovakia. laboratory-reared planorbis planorbis experimentally infected shed the first cercariae two months after exposure to miracidia. argentophilic structures in miracidia and cercariae are described. in miracidia, these structures are similar to those previously described from species of paramphistomum: p. togolense, p. phil ...19846721375
trematodiasis in turkey: comparative efficacy of triclabendazole and niclofolan against natural infections of fasciola hepatica and f. gigantica in sheep.a new fasciolicide, triclabendazole, tested at single oral dose rates of 5 and 10 mg/kg body-weight, proved to be highly effective (greater than 99%) against chronic field infections of fasciola hepatica and f. gigantica in sheep. the performance of the new drug compared favourably with niclofolan at the recommended dose. neither product was effective against dicrocoelium dendriticum and paramphistomum spp.19846747253
morphological and histochemical studies on the ovarian development and oogenesis in paramphistomum cervi (digenea: paramphistomatidae).the ovary in 4-week-old worms contains undifferentiated germ cells. the oogonial differentiation, together with the appearance of some pas-positive material in the ooplasm occurs in the ovary of 8-week-old worms. the ovary of 16-week-old worms contains only oogonia and oocytes and no germ cells. in adult worms, the oocytes reach the pachytene stage and further development is arrested at this stage. nucleolar fragmentation and subsequent transport of nuclei to the ooplasm have been observed. the ...19846204914
[seasonal changes and incidence of paramphistomum sp. infection in cattle in southeastern poland]. 19846531928
histopathology of the duodenum and rumen of goats during experimental infections with paramphistomum cervi.on microscopic examination after experimental infection with paramphistomum cervi, tissue reactions in the duodenum were more pronounced during early stages of the infection (20th day post-infection (dpi)). immature parasites were seen migrating to the muscularis layer, and focal infiltration of macrophages and lymphocytes was observed in the lamina propria and in the interstitial tissue of brunner's gland. at places, there was cystic dilatation of brunner's gland. at 40 dpi, the parasite was no ...19846541393
maturation of paramphistomum cervi in sheep in india.histological studies of the trematode paramphistomum cervi collected throughout the year from the rumen of sheep, revealed the occurrence of gravid worms from april to august and immature worms from september to march. the maturation of the gonads and the accessory sex glands i.e., the prostate-, mehli's- and vitelline-gland began during the period march-april and showed functional peaks during the period july-august, which coincided with the availability of the intermediate host, indoplanorbis ...19846541837
the effects of environmental factors on the development, behaviour and survival of paramphistomum microbothrium miracidia.the effects of temperature, hydrogen ion concentration, salts, light, gravity and living organisms on the development, survival and behaviour of paramphistomum microbothrium miracidia were studied. isotonic water environment of ph 7-8 and temperature of 25 degrees c were found to be most favourable for miracidial development and hatching. miracidia longevity was highest at 21 degrees c in an isotonic water environment of ph 6-8. demineralized water reduced the longevity of miracidia. miracidia e ...19846543054
paramphistomum spp. in dairy cattle in québec.few cases of infection with paramphistomum spp. have been reported from cattle in canada. during the course of a recent study of bovine fascioliasis both p. microbothrioides and p. liorchis were found in the rumen of dairy cattle slaughtered in a quebec abattoir. eggs in feces were distinguished on the basis of their size. coprological analysis of 932 samples from 601 cows on 17 selected farms in portneuf county (quebec) revealed that 34% of the animals were infected with p. microbothrioides and ...198417422453
histochemical alterations in the duodenum of goats experimentally infected with paramphistomum cervi.certain histochemical alterations in the different tunics of duodenum in kids were studied 20, 40, 60 and 80 days post-infection (dpi) with paramphistomum cervi and the results compared with those of uninfected kids. there was a general reduction of polysaccharide complex substances and glycogen at 20 dpi. a marked decrease in polysaccharide complex substances and glycogen at 20 dpi. a marked decrease in polysaccharide complex substances and glycogen was especially discernible in the brunner's g ...19853992867
[pathogenesis of paramphistomiasis in sheep].experimental studies were carried out on the pathogenesis of paramphistomum infection of 58 weaned lambs, aged 4 to 12 months, infected with various numbers of adolescaria. the test animals were divided into 5 groups, each group having 2 subgroups. most of the animals were given the infectious material only once, while some of them were infected three times at 30-day intervals. the animals of the fifth group were infected with 5,000 live worms each. adolescaria were obtained from experimentally ...19853992928
[parasite egg development during methane fermentation].investigations were carried out on the development of the most frequently encountered parasitic diseases in farm animals raised under industrial conditions. the parasite eggs were obtained from great numbers of animals with fascioliasis, dicrocoeliasis, ascaridiasis, and paramphistomum infection, etc., and were mixed with fecal homogenate in a lagoon of a fermentor in the conditions of methane fermentation. it was found that the parasite eggs in such conditions retained their vitality in a state ...19854013079
morphological and histochemical studies on the development of testis and spermatogenesis in the ruminal trematode of sheep, paramphistomum cervi (digenea: paramphistomatidae).morphological and histochemical changes accompanying testicular development and spermatogenesis have been described in the ruminal trematode paramphistomum cervi during the course of its infection in sheep. small testes of 4-week-old worms contain a few primordial germ cells. spermatogonial cells appear first in 6-week-old worms and increase in number by the 10th week when the testes become large and follicular. mature spermatozoa appear in the testes of 16-week-old worms. general pattern of spe ...19863721355
[superficial argentophilic structures in the miracidium and cercaria of paramphistomum microbothrioides price and mac intosh, 1944 (trematoda, paramphistomidae)].superficial argentophilic structures of the miracidium are identical to those observed in the other species of the genus. on the other hand, on the terebratorium, they are different from those of the miracidium of calicophoron calicophorum. cercarial papillae are rarely symmetrical and their number varies according to specimens. however differences between the species are obvious. if paramphistomum microbothrioides, p. microbothrium and p. daubneyi are related by acetabular papillae, the number ...19863566081
[the karyotype of paramphistomum explanatum (creplin, 1849) obtained from korean cattle]as a series of systematic classification of paramphistomes, in the first step, paramphistomes in the rumen and reticulum were collected on 170 korean cattles (2-3 years age, male) slaughtered at jeonju abattoir from july 1984 to september 1985 and were classified by means of morphology of the worms. afterwards, the karyotype of paramphistomum explanatum (creplin, 1849) which is the common in korean cattle was detected by means of modified air-drying method from testis cells of the worm. the foll ...198612886106
[the karyotype of paramphistomum cervi (zeder, 1790) from korean cattle]as a series of systematic classification of paramphistomes, the worms in the rumen and reticulum were collected on 214 korean cattle slaughtered at jeonju abattoir from january 1986 to april 1987 and were classified by means of morphology. afterwards, the karyotype of paramphistomum cervi (zeder, 1790) was detected by means of modified air-drying method from germ cells of the worms. the results were summarized as follows: in the chromosome number of 254 p. cervi, the haploid cell was n=9 and the ...198712886066
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