Publications

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parasites of domestic and wild animals in south africa. ix. helminths in blesbok.four blesbok culled in the rietvlei nature reserve during may 1972 were each infested with trichostrongylus axei and impalaia nudicollis. some of these animals also harboured haemonchus bedfordi, haemonchus contortus, trichostrongylus falculatus, skrjabinema alata and avitellina centripunctata. thirty-two blesbok were culled in pairs at approximately 4-5 week-intervals in the percy fyfe nature reserve from july 1972 to november 1973. adult h. contortus were recovered in fair numbers from buck sl ...1978714392
the efficacy of cambendazole against cestode infestations in lambs.the anthelmintic efficacy of cambendazole dosed orally at 20 mg/kg live mass was determined against naturally acquired cestode infestations in lambs. the anthelmintic was completely effective against both moniezia spp. and avitellina centripunctata. difficulties in ascertaining the presence of infestations with the latter species in the living animal are discussed.19751240970
cestodes of ruminants in afghanistan.five cestode species parasitizing ruminants were found for the first time in afghanistan: moniezia benedeni, m. expansa, avitellina centripunctata, stilesia globipunctata, and thysaniezia giardi.19761278818
superoxide dismutase in cestodes. isoenzymatic characterization and studies of inhibition by a series of benzimidazoles and by pyrimidine derivatives of recent synthesis.the activities of superoxide dismutase (sod) (e.c.1.15.1.1) in extracts of five cestode parasites (moniezia expansa, m. benedeni, avitellina centripunctata. taenia hydatigena and dipylidium caninum) were investigated. the polyacrylamide gel electrophoretic patterns revealed that each of the five species had four isoenzyme bands; they could be differentiated principally by their displacements and, less clearly, by their intensities. determinations were made of the inhibitory activities of four be ...19892783180
ascorbic acid levels in the proglottides of four species of cestode parasites of mammals and birds in relation to their sexual maturity.ascorbic acid levels were found to be closely related to different stages of growth and maturity of avitellina centripunctata, moniezia expansa, and stilesia globipunctata from goats and sheep and of raillietina echinobothrida from fowl. the ascorbic acid level in avian parasites was higher than that in mammalian. the level was highest in immature proglottides and lowest in gravid proglottides.19883397519
axenomycins, new cestocidal antibiotics.axenomycins are a new group of macrolide antibiotics isolated from the fermentation broth of streptomyces lisandri n.sp. they exhibit anthelmintic activity against tapeworms (cestoda). three different fractions, a, b, and d, have been obtained, the most active fraction being axenomycin d. the activities of the axenomycin complex and axenomycin d against hymenolepis nana in mice, taenia pisiformis, dipylidium caninum, and diphyllobothrium sp. in dogs, and moniezia expansa, m. benedeni, and avitel ...19734790622
in vitro estimation of glycogen content in three sheep cestodes.the glycogen content (fresh weight) was biochemically estimated in immature, mature and gravid proglottids of three cestodes, avitellina centripunctata (rivolta, 1874), stilesia globipunctata (rivolta, 1874) and moniezia expansa (rudolphi, 1910), having different niche in the small intestine of sheep. the glycogen gradient was in the order of mature greater than immature greater than gravid proglottids of each species of cestode. maximum glycogen content was found to be in m. expansa and it was ...19827129237
presence of cholesterol in the neutral lipids of three sheep cestodes.the adult worms of stilesia globipunctata, avitellina centripunctata and moniezia expansa with immature, mature and gravid proglottids and having almost the same length were collected simultaneously from the sheep intestine. neutral lipid concentration is about 2.2, 1.24 and 18.4% of the dried worm tissue respectively. cholesterol is 87.8, 85.7 and 88.0% of the unsaponifiable material respectively.19807217653
diagnosis of stilesia hepatica infection in sheep.a technique for examining faecal samples for stilesia hepatica proglottids was assessed for diagnosis of this infection in live sheep. it detected infection in 67% of all the sheep that were confirmed infected by examining the livers during meat inspection and in 63% of sheep from a farm with a history of up to 100% infection rate at slaughter. it is 100% specific since it relied on the morphological identification of s. hepatica proglottids, which are characteristic. in addition it detected avi ...19938109056
parasite spectrum and seasonal epidemiology of gastrointestinal nematodes of small ruminants in the gambia.one hundred and four post mortem examinations of randomly selected sheep (52) and goats (52) were carried out weekly from march 1990 to february 1991. gastrointestinal parasites were identified and counted. a large spectrum of 16 helminth species was found in 101 (97%) infected animals. the nematodes infecting small ruminants were, in order of predominance: trichostrongylus colubriformis (96% of all animals), oesophagostomum columbianum (82%), haemonchus contortus (67%), strongyloides papillosus ...19938249251
[ultrastructural similarity of spermatozoa of some cyclophyllidea].the mature spermatozoa of cotugnia polyacantha, raillietina (r) tunetensis, inermicapsifer madagascariensis and avitellina centripunctata have an almost identical ultrastructural organization. they are tapered at both extremities. their anterior extremity exhibits an apical cone of electron dense material and one or two helicoidal crested-like bodies. their cortical microtubules are spiralized and are seen, in longitudinal and cross sections, as continuous, dense, submembranous material. their n ...19949235194
helminths and bot fly larvae of wild ungulates on a game ranch in central province, zambia.helminths and bot fly larvae were collected from 11 wild ungulate species on a game ranch in the central province of zambia. new host-parasite records are: calicophoron sp. from defassa waterbuck kobus ellipsiprymnus defassa and kafue lechwe kobus leche kafuensis; avitellina centripunctata, gaigeria pachyscelis and gedoelstia cristata from tsessebe damaliscus lunatus lunatus; cooperia rotundispiculum from common reedbuck redunca arundinum; dictyocaulus filaria from greater kudu tragelaphus strep ...19989741058
helminths of goats in mongolia.post-mortem examinations of 236 goats from all provinces in mongolia were performed for the study of helminths in goats. thirty-nine helminth species belonging to three classes, 14 families and 23 genera were found. trichocephalus spiralis and avitellina centripunctata are reported for the first time in goats in mongolia. the prevalence and intensity of helminth infections are reported for three age groups of goats in four seasons and three geographic zones in mongolia. common helminth infection ...200111587845
mixed infection with intestinal tape worms in sheep.in a survey carried out during the period april 2001 to november 2002, the intestines of 3165 slaughtered sheep in the fars province of iran were examined for mixed infection with intestinal tape worms. four point sixty eight percent of animals were found to be infected with one or more than one species of tape worms. the identified species included: moniezia expansa, moniezia benedeni, thysaniezia giardi, avitellina centripunctata and stilesia globipunctata. of all 148 infected sheep, 104 anima ...200416493395
[the scanning electron microscopic examination of avitellina centripunctata and thysaniezia ovilla].in present study, avitellina centripunctata and thysaniezia ovilla, the sestodes of sheep and goat, were examined using scanning electron microscopy (sem). strobila and unarmed scolex of t.ovilla and a.centripunctata were observed.200718224619
prevalence and seasonal incidence of larval and adult cestode infections of sheep and goats in eastern ethiopia.a study on the prevalence and seasonal incidence of cestode parasite infections of sheep and goats was carried out in eastern ethiopia for 2 years (may 2003-april 2005). during this period, viscera including liver, lungs, heart, kidneys and the gastro-intestinal tract were collected from 655 sheep and 632 goats slaughtered at four abattoirs located in the towns of haramaya, harar, dire dawa and jijiga. at the abattoirs the abdominal, thoracic and pelvic cavities as well as the muscle surfaces of ...200818575964
prevalence and scanning electron microscopic identification of anoplocephalid cestodes among small ruminants in senegal.this study was undertaken to determine the prevalence of anoplocephalid cestodes in sheep and goats in senegal. intestines of 462 sheep and 48 goats were examined; 47.4% of sheep and 6.2% of goats were infected. the species identified and their prevalence were, among sheep, avitellina centripunctata 38.7%, moniezia expansa 15.4%, stilesia globipunctata 16.7%, and thysaniezia ovilla 0.4%. among goats, they were m. expansa 6.2% and t. ovilla 2.1%. the prevalence of all species was not statisticall ...201627597893
production and characterization of a monoclonal antibody specific to 16 kda antigen of paramphistomum gracile.a number of monoclonal antibodies (moabs) against the 16 kda antigen of paramphistomum gracile (16 kdaagpg) were produced in vitro by hybridoma technique. reactivity and specificity of these moabs were evaluated by elisa and immunoblotting assays. seven moab clones were selected from the stable hybridoma clones, namely 1d10, 2d7, 3b10, 3d9, 4f1, 4g4, and 5g12. it was found to be igm and kappa light chain isotypes. by immunoblotting and elisa, all moabs reacted with purified 16 kdaagpg at molecul ...201727770198
production and characterization of a monoclonal antibody against recombinant cathepsin l1 of fasciola gigantica.monoclonal antibodies (moabs) against a recombinant cathepsin l1 of fasciola gigantica (rfgcatl1) were produced in vitro by fusion of balb/c mice spleen cells immunized with rfgcatl1 and mouse myeloma cells. reactivity and specificity of these moabs were evaluated by indirect elisa and immunoblotting techniques. seven moab clones were selected from the stable hybridoma clones, namely 1e10, 1f5, 3d11, 4b10, 4d3, 4e3 and 5e7. clones 1e10, 1f5 and 3d11 were igm, whereas clones 4b10, 4d3, 4e3 and 5e ...201424736227
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