| parasites of domestic and wild animals in south africa. v. helminths in sheep on dryland pasture on the transvaal highveld. | the seasonal incidence of helminth infestation on a farm in the transvaal highveld was determined by the slaughter of tracer lambs exposed on pasture for periods of approximately 6 weeks. haemonchus contortus, the most prevalent nematode, was recovered in the greatest numbers from january--may 1974. peak counts of ostertagia circumcincta were made during march and april 1974 and in january 1975, while trichostrongylus spp. were mainly encountered from march--june. cooperia spp. were generally re ... | 1978 | 704040 |
| neuropeptide f (moniezia expansa): localization and characterization using specific antisera. | immunocytochemical techniques used in conjunction with confocal scanning laser microscopy (cslm) and electron microscopy have been used to demonstrate, for the first time, the distribution of the parasitic platyhelminth neuropeptide, neuropeptide f (npf) in the cestode, moniezia expansa. antisera were raised to intact npf(1-39) and to the c-terminal decapeptide of npf(30-39). these antisera were characterized and validated for use in both immunocytochemistry and radioimmunoassay (ria). npf immun ... | 1992 | 1461689 |
| the primary structure of neuropeptide f (npf) from the garden snail, helix aspersa. | neuropeptide f (npf), originally isolated from the sheep tapeworm, moniezia expansa, consists of 39 amino acid residues terminating in a phenylalaninamide. an analogous neuropeptide has been isolated and sequenced from extracts of circumoesophageal ganglia of the garden snail, helix aspersa. this neuropeptide exhibits partial primary structural similarity to members of the vertebrate neuropeptide y (npy)/pancreatic polypeptide (pp) superfamily. npf is thus of widespread occurrence in the nervous ... | 1992 | 1472263 |
| seasonal variation of oribatid mite (acarina) populations and their relationship to sheep cestodiasis in argentina. | samples of soil were collected monthly from two ranches in the zone of puan, province of buenos aires, argentina. the monthly distribution of males, females without eggs and females with eggs for the dominant species of oribatid mites were studied. the dominant species were zygoribatula lata in ranch a, and zygoribatula elongata in ranch b. both species are hosts of moniezia expansa rudolphi, 1810 and helictometra giardi baer, 1927. based on the data presented, the factors associated with transm ... | 1992 | 1615627 |
| [the effect of temperature and relative humidity on survival of eggs of the cestode, monieza expansa (rudolphi, 1810)]. | the survival of moniezia expansa eggs in the droppings of lambs was investigated at various temperatures in laboratory conditions and on test plots outdoors. the optimum temperature of the livability of m. expansa eggs in laboratory conditions is 5 degrees c; at this temperature 10% of oncospheres survived after 161 days. at the temperatures of 10, 25, 35 degrees c the oncospheres survived 105, 28, 46 days respectively, at -12 degrees c it was 28 days. it was for 21 and 35 days that on the test ... | 1991 | 1771731 |
| periparturient rise in faecal nematode egg counts in west african dwarf sheep in southern ghana in the absence of arrested strongyle larvae. | the nematode egg output of two groups of ewes, a pregnant test group (2-3 years of age) mated between march and april and a non-pregnant control group (5-6 years of age) was followed. the worm burdens acquired by worm-free 'tracer' lambs were also followed on the same pasture from march 1988 to february 1989. there was a significant difference (p less than 0.05) in the magnitude of the egg output in the test group compared with the control group. in the test ewes, an initial rise in egg producti ... | 1991 | 1897121 |
| the epidemiology of helminthosis in small ruminants under the traditional husbandry system in eastern nigeria. | the epidemiology of helminth infections in west african dwarf sheep and goats under the traditional husbandry system prevailing in the derived savanna area of eastern nigeria was studied for 12 months. the infections observed were due to haemonchus contortus (87.1%), trichostrongylus spp. (63.8%), metacestodes of taenia hydatigena (30.2%), oesophagostomum columbianum (22.4%), strongyloides sp. (18.8%), cooperia spp. (17.2%), gaigeria pachyscelis (6.0%), moniezia expansa (6.0%), bunostomum trigon ... | 1990 | 2247944 |
| comparative efficacy of praziquantel, albendazole, febantel and oxfendazole against moniezia expansa. | | 1990 | 2260242 |
| new potential intermediate host of moniezia expansa rudolphi, 1810, in argentina. | for the first time in argentina, it has been shown that oribatids from the genus ceratozetes berlese, 1908 (acarina:ceratozetidae) have the potential to act as intermediate hosts of moniezia expansa from sheep. zygoribatula lata hammer, 1961 (acarina:oribatulidae) was confirmed as a potential intermediate host of m. expansa. a comparative study of the potential effectiveness of both oribatid species as intermediate hosts of m. expansa from sheep was performed. | 1989 | 2800305 |
| 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. | 1988 | 3397519 |
| the comparative efficacy of oxfendazole administered as bolus and suspension to naturally infected sheep in greece. | in a flock of 20 ewes naturally infected with those parasites of sheep most common in greece, and kept indoors during the whole trial, oxfendazole at the dose rate of approximately 2.9 and 2.8 mg/kg body-weight was tested as a 4 g bolus containing 112 mg active ingredient and a 2.265% suspension. the evaluation of its efficacy was based on the necropsy findings which were also supported by faecal egg counts. no differences in efficacy were noticed between the two formulations of the drug. both b ... | 1986 | 3745877 |
| [seasonal dynamics of intermediate hosts and survivability of eggs of the sheep tapeworm moniezia expansa (rudolphi, 1810)]. | | 1986 | 3751392 |
| occurrence and biochemical characteristics of cestode lymphocyte mitogens. | the cestodes echinococcus granulosus, taenia multiceps, t. pisiformis, t. hydatigena, hymenolepis diminuta, moniezia expansa and anoplocephala perfoliata all produced substances that stimulated thymidine incorporation by whole blood lymphocyte cultures. this mitogenic activity was demonstrated in metacestode cyst fluids, live protoscoleces and scoleces, parasite culture supernatants, and extracts of adult parasites. t. multiceps metacestode cyst fluid mitogen adhered to, but would not pass throu ... | 1987 | 3822512 |
| fluorescent antibody study of the post-cysticercoid development of moniezia expansa. | the strobila of moniezia expansa was separated into developmental areas, and these were compared using immunological techniques. agar double diffusion plates and immunoelectrophoresis showed differing antigenic composition or concentration between the strobilar regions studied. conjugation of the antisera with rhodamine lissamine-200 aided in localization of common antigens on tissue sections of the various developmental stages. what appeared to be unique localizations were observed. | 1981 | 6169541 |
| [prevalence of oribatid mites on sheep pastures and their role as intermediate host for the sheep tapeworm moniezia expansa]. | | 1984 | 6487259 |
| taeniid infection of dogs in zaria nigeria. | diagnostic work carried out over a sixty month period (1978-1982) showed that out of 4211 faecal and intestinal content samples, 522 (12.40%) carried cestode infection. taeniid infection formed 75.86% (396) of this number. out of ten bovine species posted, one had sterile hydatid cyst of the lung. twenty-eight ovine samples were analysed out of which one had fertile hydatid cyst of the lung, three had cysticercus tenuicollis and one had moniezia expansa. only one of the 21 caprine species posted ... | 1984 | 6534899 |
| the occurrence of ecdysteroids in the cestode, moniezia expansa. | the occurrence of free ecdysteroids in the sheep cestode, moniezia expansa, was demonstrated. significant amounts of conjugated ecdysteroids were not detected. characterization of the free hormones by high-performance liquid chromatography monitoring fractions by radioimmunoassay, and by gas chromatography/mass spectrometry (selected ion monitoring) indicated the presence of ecdysone, 20-hydroxyecdysone and 20,26-dihydroxyecdysone. analysis of the ecdysteroids by radioimmunoassay in segments alo ... | 1984 | 6700637 |
| ribonucleotide levels in six nematodes, a cestode and a trematode. | the levels of ribonucleotides in the nematodes haemonchus contortus, ostertagia circumcincta, trichostrongylus colubriformis, nippostrongylus brasiliensis, ascaris suum and stephanurus dentatus, the cestode moniezia expansa and the trematode fasciola hepatica were measured by high pressure liquid chromatography. the adenylate charge, atp and total adenine nucleotide levels were in general agreement with those determined enzymatically and with published data. udp and guanine nucleotide levels wer ... | 1983 | 6877282 |
| moniezia infection in the dwarf breeds of small ruminants in southern nigeria. | a survey of moniezia infection was conducted among two groups of sheep and goats, of dwarf breeds, in nigeria: (i) those being reared under a traditional, extensive husbandry system in groups of rural villages situated in two different ecological zones; and (ii) those reared under an intensive system on experimental stations in two ecological zones of nigeria. moniezia expansa was the predominant species encountered in the animals. the incidence of moniezia infection was higher in sheep than in ... | 1983 | 6880006 |
| 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. | 1980 | 7217653 |
| [epidemiology of gastrointestinal helminthiasis in small ruminants in the tree-cropping pasture zone in senegal]. | an epidemiological survey on gastrointestinal helminthiasis in 51 sheep and 51 goats was held in the tree-cropping pasture region in senegal from october 1990 to september 1991. all the animals examined were infected with at least 1 helminth species. three trematodes (fasciola gigantica, schistosoma bovis, amphistomatids), 2 cestodes (moniezia expansa, cysticercus tenuicollis) and 9 nematodes were identified. the most important parasite in sheep was haemonchus contortus while trichostrongylus co ... | 1995 | 7735304 |
| [development of early larval forms of moniezia expansa under laboratory conditions]. | three species of oribatid mites: scheloribates latipes, pergalumna nervosa and ceratozetes sp. were experimentally infected with moniezia expansa eggs or oncospheres. the intermediate hosts were kept under constant laboratory conditions at 27 degrees c and 80% relative humidity. three species of oribatid mites became infected and completely developed cestode cysticercoids were found. the early part of life cycle of m. expansa was studied in s. latipes. the mites were examined on 20th, 24th and 2 ... | 1994 | 7975653 |
| gnffrfamide: a novel fmrfamide-immunoreactive peptide isolated from the sheep tapeworm, moniezia expansa. | the widespread distribution of fmrfamide-immunoreactivity in platyhelminth nervous systems has been demonstrated immunocytochemically. here we report the isolation and primary structure of the first platyhelminth fmrfamide-related peptide (farp) from the tapeworm, moniezia expansa. the peptide was found to have a molecular mass of 785 da and a primary structure of gly-asn-phe-phe-arg- phe-nh2 (gnffrfamide). acid alcohol extracts of this platyhelminth contained only this single farp which had a p ... | 1993 | 8323531 |
| comparative metabolism of albendazole and albendazole sulphoxide by different helminth parasites. | albendazole (abz) is a broad-spectrum benzimidazole anthelmintic widely used in human and veterinary medicine. the aim of the current work was to characterise the sulphoxidative metabolism of abz, and the sulphoreduction of abz sulphoxide (abzso), by microsomal (ms) and cytosolic (cyt) fractions of three different helminth species: fasciola hepatica, moniezia expansa and ascaris suum. after the incubation assays, parasite material was analysed by hplc to characterise the metabolic product formed ... | 2001 | 11355675 |
| the endoparasites of sheep and goats, and shepherd in north sinai governorate, egypt. | examination of sheep and goats in four areas in north sinai revealed an overall infection of 12.70% with fasciola species, 11.8% with paramphistomum cerve, 12.80% with moniezia expansa, 47.11% with trichostrongylus colubriformis, 4.59% trichuris ovis and 44.85% coccidia. the highly infected sheep and goats were diagnosed in el hassanah center (90.49%), followed by al arish city (87.31%), then rafah city (74.39%), and lastly bir al abd (54.71%). the elevation of the overall percent of infection i ... | 2002 | 12049248 |
| purification and characterisation of a novel cysteine conjugate beta-lyase from the tapeworm moniezia expansa. | the paper presents the first report of the purification of an invertebrate cysteine conjugate beta-lyase (ccbl). ccbl activity was shown to predominate within the cytosolic fraction of tissue from the tapeworm moniezia expansa. the monomeric cytosolic enzyme was isolated with a m(r) of 72 kda and co-purified with transaminase activity towards l-aspartate. the substrate profile for m. expansa ccbl is different from that of mammalian ccbls. exploiting the differences in mammalian and parasite subs ... | 2000 | 10779568 |
| local and systemic immune responses to echinococcus granulosus in experimentally infected dogs. | local and systemic immune responses were studied in six dogs experimentally infected with the dog/sheep tapeworm echinococcus granulosus. all dogs developed similar igg antibody response to parasite antigens. in contrast, ige and iga responses differed widely. no relationship between iga responses and parasite burden at the end of the infection were observed. further, clear differences in the anti-parasite iga response in serum as compared with specific iga forming cells in mesenteric lymph node ... | 2004 | 15036575 |
| laboratory and field studies on oribatid mites as intermediate host of moniezia expansa infecting egytptian sheep. | three species of oribatid mites, scheloribates zaherii, zygoribatula tadrosi and z. sayedi from pure colonies were experimentally exposed to infection by allowing them to feed on stool sheep infected with moniezia expansa. the mites were followed up to the development of the infective cysticercoids. m. expansa was able to achieve sucessfully its larval development in the three species of oribatid mites under laboratory conditions. these were demonstrated after 84, 73 & 69 days post infection, re ... | 2004 | 15125535 |
| human monieziasis expansa: the first egyptian parastic zoonosis. | this paper reports the first egyptian zoonotic infection with the common tapeworm of sheep, moniezia expansa. perhaps this is the first human monieziasis expansa in the sheep raising countries worldwide. diagnosis was based on recovery of the characteristic eggs from the stool of a fifteen-years-old shepherd. a single dose of niclosamide one gram proved effective. | 2004 | 15287174 |
| efficacy of commiphora molmol (mirazid) against sheep naturally infected with monieziasis expansa in al-santa center, gharbia governorate, egypt. | the efficacy of commiphora molmol or myrrh (mirazid) was evaluated in treating sheep naturally infected with moniezia expansa. total doses of one, two or three capsules (300 mg each) were given for one, two, three, four, five, six, seven and eight successive days on an empty stomach an hour before offering their breakfast. every day the stools of the three groups were examined microscopically and macroscopically for eggs and/or gravid segments. when the stool was negative, the treatment was stop ... | 2004 | 15587306 |
| 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 ... | 1982 | 7129237 |
| tapeworm (moniezia expansa) and its effect on sheep production: the evidence reviewed. | literature relating to the effects of the tapeworm moniezia expansa on sheep is reviewed. while there are many claims of adverse effects by this organism, none of these withstand critical scrutiny. the balance of evidence indicates that m. expansa infections are generally harmless, even when the tapeworms are present in large numbers in young lambs, and that there is no justification for treating sheep for m. expansa on the basis of any likely benefit to the health or production of the animals. ... | 1986 | 16031272 |
| use of praziquantel for the control of moniezia expansa in lambs. | the efficacy of a drench containing praziquantel in combination with levamisole was evaluated in four trials performed in the 1990-91 and 1992-93 seasons in the waikato region of new zealand. the trials involved 93 naturally infected lambs and compared the efficacy of a 3.75 mg/kg praziquantel 7.5mg/kg levamisole drench against moniezia expansa, with albendazole, an albendazole-levamisole combination and oxyclozanide-levamisole combination in controlled trials. there was no significant reduction ... | 1996 | 16031907 |
| 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 ... | 2004 | 16493395 |
| influence of protein supplementation on the resistance and resilience on young hair sheep naturally infected with gastrointestinal nematodes during rainy and dry seasons. | thirty, 4-month-old entire santa ines lambs were grazed on an andropogon gayanus pasture, during a 34-week period (rainy season weeks 0-20 and dry season weeks 21-34) and allocated in two treatment groups (n = 15) each with different protein supplementation: high protein (hp-19% cp) and low protein (lp-11% cp). these were subdivided into those receiving anthelmintic treatment (c) (n = 7) and without anthelmintic treatment (i) (n = 8). the objective was to evaluate the effects of supplementation ... | 2006 | 16495016 |
| effects of condensed tannin from acacia mearnsii on sheep infected naturally with gastrointestinal helminthes. | the effect of tannins on endoparasite control in hair sheep was investigated using 20 entire lambs of the santa inês breed. at the beginning of the experiment these animals were 6-months old and weighed 22.5kg+/-4.7. the treatments used were (10 animals each): gt (animals receiving 18g of acácia negra containing 18% of condensed tannin/animal/week) and gc (animals not receiving tannin). the experiment lasted 84 days, with animals kept on an andropogon gayanus pasture. faeces were collected weekl ... | 2007 | 17067741 |
| genetic markers to distinguish moniezia expansa from m. benedeni (cestoda: anoplocephalidae) and evidence of the existence of cryptic species in australia. | multilocus enzyme electrophoresis (mee) was used to genetically compare moniezia spp. collected from sheep and cattle in southern australia. fifteen enzyme loci were established for the genetic characterisation of individual specimens of moniezia, which represents a significant increase in the number of loci that was previously available for these cestodes. another four enzyme loci were also identified as providing potential genetic markers. there were no differences in staining activity or band ... | 2007 | 17206509 |
| 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 ... | 2008 | 18575964 |
| generation and analysis of expressed sequence tags from a cdna library of moniezia expansa. | the moniezia expansa is a parasite of sheep that causes diarrhea and fleshless leading to stockbreeding losses. a genomic resource for large-scale molecular studies in this parasite is lacking. to study the gene expression including development, digestion and reproduction organs of m. expansa, a cdna library had been constructed and expressed sequence tags (ests) had been analyzed, which were helpful for the development of a powerful microarray platform which are used to analyze gene expression ... | 2009 | 19118581 |
| prevalence of cestode parasites in sheep slaughtered in riyadh city, saudi arabia. | prevalence of tapeworm infections among sheep slaughtered in riyadh city were studied from february 2007 to march 2008. a total of 76 out of 3300 sheep were infected with adult cestodes (2.3%). the highest infection rate was in autumn (8.1%), and the lowest one was in summer (1.7%). the cestodes were identified as moniezia expansa (96.3%) and m. deuticulata (3.7%). concerning seasonal dynamics of the worms, the highest number was recorded in october and november (13.5 & 8.3%), while the lowest o ... | 2008 | 19143137 |
| genetic factors of sheep affecting gastrointestinal parasite infections in the distrito federal, brazil. | three sheep farms were used in the distrito federal, central brazil, to study the occurrence of parasites in the feces. a total of 1798 collections were taken over the period of a year. a total of 1205 were taken in santa inês breed (si) in all three farms, 323 in bergamasca (berg), 54 in ile de france, 49 in ilexsi, 103 in morada nova (mn) and 64 in texelxsi, these last five groups being on a single farm. the animals were drenched soon after weaning and feces collected every 3 weeks to calculat ... | 2009 | 19837513 |
| rna interference in a cestode reveals specific silencing of selected highly expressed gene transcripts. | evolving rna interference (rnai) platforms are providing opportunities to probe gene function in parasitic helminths using reverse genetics. although relatively robust methods for the application of rnai in parasitic flatworms have been established, reports of successful rnai are confined to three genera and there are no known reports of the application of rnai to the class cestoda. here we report the successful application of rnai to a cestode. our target species was the common ruminant tapewor ... | 2010 | 19900457 |
| experimental studies on the lead accumulation in the cestode moniezia expansa (cestoda: anoplocephalidae) and its final host (ovis aries). | the tapeworm moniezia expansa and naturally infected sheep were investigated with respect to their lead accumulation. lead-pb(ch(3)coo)(2) was added to the distilled water and administered orally to the sheep every day for a period of 1 week. after the exposure period the sheep were killed and the metal levels were determined in the muscle, liver, kidney and blood of the sheep as well as in the cestode parasites (moniezia expansa). the impact of an infection with the cestode moniezia expansa and ... | 2010 | 20213435 |
| a new intermediate host (protoschelobates seghettii, n. sp.: acarina: scheloribatidae) of the sheep tapeworm, moniezia expansa. | | 1947 | 20262495 |
| experimental studies on the cadmium accumulation in the cestode moniezia expansa (cestoda: anoplocephalidae) and its final host (ovis aries). | the tapeworm moniezia expansa and naturally infected sheep were investigated with respect to their cadmium accumulation. cadmium chloride (cdcl(2), 0.2 g) was added to 10 ml of distilled water and administered orally to the sheep every day for a period of 1 week. the cadmium content of m. expansa was lower than that in the liver tissues of sheep, although this difference was not significant. the highest mean cadmium concentrations were found in the liver of sheep infected with m. expansa (24.5+/ ... | 2010 | 20435007 |
| studies on monieziasis of sheep i. prevalence and antihelminthic effects of some plant extracts, a light and electron microscopic study. | out of 2,343 examined sheep throughout the whole year, 271 were found to be infected with tapeworms (11.5%). the highest infection rate (22.1%) was recorded in autumn, while the lowest (6%) occurred in summer. six species of cestodes were identified according to their prevalence: moniezia expansa (74%), moniezia denticulata (8.5%), moniezia benedeni (4.8%), moniezia trigonophora (2.7%), and thysaniezia giardi (2.7%), t. giardi was recorded in egypt for the first time. m. expansa was found throug ... | 2010 | 20865430 |
| calibration and diagnostic accuracy of simple flotation, mcmaster and flotac for parasite egg counts in sheep. | the present study was aimed at carrying out a calibration and a comparison of diagnostic accuracy of three faecal egg counts (fec) techniques, simple flotation, mcmaster and flotac, in order to find the best flotation solution (fs) for dicrocoelium dendriticum, moniezia expansa and gastrointestinal (gi) strongyle eggs, and to evaluate the influence of faecal preservation methods combined with fs on egg counts. simple flotation failed to give satisfactory results with any samples. overall, flotac ... | 2010 | 21216533 |
| gastrointestinal parasitic infection in diverse species of domestic ruminants inhabiting tribal rural areas of southern rajasthan, india. | a total of 415 adult domesticated ruminants, 130 cattle (bos taurus), 108 buffaloes (bubalus bubalis), 94 goats (capra hircus) and 83 sheep (ovis aries) inhabiting tribal rural areas of southern rajasthan, india were investigated for evidence of gastrointestinal protozoan and helminthic infections. in southern rajasthan humid ecosystem is predominant and has number of perennial freshwater bodies. fresh faecal samples of these animals were examined microscopically by direct wet smear with saline ... | 2012 | 24431582 |
| gastrointestinal parasites of sheep, municipality of lajes, rio grande do norte, brazil. | this study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (ovis aries) santa inês breed, municipality of lajes, rio grande do norte. monthly, from april 2005 to august 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. a total of 64 lambs were sampled, but only 62 lambs were slaughtered. the fecal samples were examined by sedimentation in water. the contents of the abo ... | 2012 | 22534950 |
| internal parasites of free-ranging guanacos from patagonia. | in the winter of 2000, a greater than 80% reduction in the guanaco population located in cabo dos bahi;as wildlife reserve, chubut, argentina, was evident due to massive mortality attributed to starvation. twelve guanacos were necropsied and samples were analyzed at the parasitology laboratory of facultad de ciencias veterinarias, universidad nacional del litoral. fecal analysis revealed developmental stages of nematodirus sp., marshallagia sp., trichuris sp. and eimeria spp. histopathological a ... | 2003 | 14651877 |
| enantioselective binding of albendazole sulphoxide to cytosolic proteins from helminth parasites. | the pharmacological effect of the active albendazole metabolite, albendazole sulphoxide (abzso), depends on its sustained presence at the site of parasite location and its binding to helmith beta-tubulin. abzso is found in the plasma and tissues of albendazole-treated animals in two enantiomeric forms: (+)abzso and (-)abzso. knowledge of enantioselectivity in drug action is necessary, since any difference in target proteins affinity between enantiomers may have implications on the pharmacologica ... | 2002 | 11980387 |
| tapeworm (moniezia expansa) in sheep: anthelmintic treatment studies to assess possible pathogenic effects and production loss in young infected animals in the field. | niclosamide and cupric acetoarsenite were both effective in removing tapeworm (moniezia expansa) from unweaned lambs. in four trials there was no significant liveweight gain in niclosamide-drenched, compared with undrenched, animals. post-mortem examination for tapeworm showed that although one lamb contained 200 ml (bulk volume) of strobila, 50% of 49 infected animals contained 50 ml or less. the greatest number of scoleces in one animal was 41, and 65% of lambs contained four or fewer. m.expan ... | 1984 | 16031018 |
| effect of lead in water on the absorption of copper, iron, manganese and zinc by sheep (ovis aries) infected with sheep tapeworm (moniezia expansa). | the sheep tapeworm (moniezia expansa) and its host ovis aries were analyzed by inductively coupled plasma optical emission spectrometry (icp-oes) for their copper, iron, manganese, zinc and lead levels. element concentrations in cestode parasites were compared to those in various organs (liver, kidney, and muscle) of sheep. tapeworms in the small intestine of sheep that were administered 2g of pb(ch(3)coo)(2) per os daily (7 days) had significantly higher lead concentrations than sheep tissues. ... | 2012 | 22425750 |