| critical anthelmintic trials in ponies with oxfendazole and caviphos and concomitant studies on the spontaneous elimination of small strongylids. | the efficacy of the benzimidazole, oxfendazole, and the organophosphate, caviphos, against gastrointestinal parasites of ponies was evaluated by the critcial test method. oxfendazole (10 mg/kg of body weight) given in single oral doses was 100% effective against adult large strongylids (strongylus vulgaris, strongylus edentatus, and strongylus equinus), 99% effective against adult small strongylids, and 97% effective against 4th-stage small strongylids (genera identified in order of frequency: c ... | 1979 | 475090 |
| critical tests of the antiparasitic activity of thiabendazole and trichlorfon sequentially administered to horses via stomach tube. | thirteen critical tests were conducted in horses naturally infected with helminths and bots. single doses of thiabendazole (44 mg/kg of body weight) and trichlorfon (40 mg/kg of body weight) powder formulations were administered as suspensions sequentially given via stomach tube to evaluate the efficacy of the combination against the large parasites of horses. parasite removal efficacies were 100% against 2nd instar gasterophilus intestinalis and 2nd and 3rd instar gasterophilus nasalis and 82 t ... | 1977 | 879569 |
| critical tests of anthelmintic activity of a paste formulation of thiabendazole in horses. | critical tests of the activity on large strongyles, ascarids, mature pinworms, and bots were carried out in 11 horses intraorally treated with a paste formulation of thiabendazole. the dose level of 44 mg/kg was administered to 3 horses, and the dose level of 88 mg/kg to 8 horses. removals of strongylus vulgaris and mature oxyuris equi were 100% at the 2 dose levels, and efficacy against strongylus edentatus varied from 95 to 99% and 89 to 100% for the 44- and the 88-mg/kg dose levels, respectiv ... | 1976 | 937790 |
| necropsies of eight horses infected with strongylus equinus and strongylus edentatus. | ponies (n = 8) approximately 18 months old, were infected with 20,000 to 30,000 infective larvae of strongylus equinus with less than 10% contamination with strongylus edentatus larvae and necropsied 7 months post-infection. lesions were present in the omentum, liver, pancreas, ventral colon, caecum and occasionally in the lungs. there were numerous intraabdominal adhesions and severe multiple granulomatous omentitis. pancreatic damage, which characterises s. equinus, was exceptionally mild and ... | 1992 | 1501210 |
| internal parasites of horses on mixed grassveld and bushveld in transvaal, republic of south africa. | between 1980 and 1982, the gastrointestinal tracts of 17 horses which had been grazing on mixed grassveld at potchefstroom and bushveld at onderstepoort in the province of transvaal, republic of south africa, were examined at necropsy and processed for parasite recovery. the large strongyles and their prevalences were as follows: strongylus vulgaris and associated lesions (88-94%), strongylus edentatus (24%), strongylus equinus (30%), triodontophorus nipponicus (35%) and craterostomum acuticauda ... | 1989 | 2588465 |
| chronic eosinophilic pancreatitis and ulcerative colitis in a horse. | a generalized debilitating disease in a horse was believed to be related to hypersensitivity to migrating strongyle larvae. the clinical signs included weight loss, diarrhea, and ulcers on all 4 coronary bands. the mare's condition deteriorated rapidly, so the mare was euthanatized and necropsied. the major histopathologic findings were chronic multifocal eosinophilic pancreatitis, hepatic portal fibrosis, biliary hyperplasia, and chronic ulcerative eosinophilic colitis. this case was similar to ... | 1985 | 3997643 |
| scanning electron microscopy of strongylus spp. in zebra. | the external ultrastructure of the anterior and posterior extremities of the nematodes, strongylus asini , strongylus vulgaris, strongylus equinus and strongylus edentatus, was studied with scanning electron microscopy (sem). fresh specimens of s. asini were collected from the caecum, ventral colon and vena portae of equus burchelli and equus zebra hartmannae ; s. vulgaris from the caecum, colon and arteria ileocolica of e. burchelli ; s. equinus from the ventral colon of e. z. hartmannae and s. ... | 1983 | 6676687 |
| antigenic analyses of tissues and excretory and secretory products from strongylus vulgaris. | rabbit antisera were prepared against veronal buffered saline extracts of l4 and l5 strongylus vulgaris, adult s. vulgaris and adult strongylus equinus retrieved from naturally infected horses. in agar gel diffusion with these antisera, adult s vulgaris and s. equinus each appeared to have at least one unique antigen; larval s. vulgaris appeared to have two species-specific and two stage-specific antigens. there were several common antigens. excretory and secretory products were collected also f ... | 1981 | 6804070 |
| anthelmintic efficacy fenbendazole paste in equines. | a single oral dose of fenbendazole (fbz) paste at 7,5 mg/kg body mass was given to 5 horses. it was highly effective against adults of the following genera: cyathostomum, cylicostephanus, cylicondontophorus, poteriostomum, cylicocyclus, triodontophorus, oesophagodontus (and other genera belonging to the subfamily cyathostominae). similarly, high efficacy was obtained against the adults of the following species: oxyuris equi, strongylus vulgaris, strongylus equinus and probstmayria vivipara. thes ... | 1981 | 7277372 |
| in vitro culture of equine strongylidae to the fourth larval stage in a cell-free medium. | an efficient and reliable method is described for the culture of equine strongyles from the third (l3) to the fourth (l4) larval stage. medium consists of 50% fetal calf serum and 50% nctc with additions of l-glutamine, nahco3, yeast extract, bactopeptone, and dextrose. the gas phase used is of prime importance; it is a mixture of 10% co2, 5% o2, and 85% n2. strongylus vulgaris, strongylus edentatus, strongylus equinus, triodontophorus brevicauda, triodontophorus serratus, triodontophorus tenuic ... | 1994 | 8158465 |
| [site of production and function of substances with hyaluronidase activity in strongylus equinus and strongylus edentatus]. | | 1957 | 13446213 |
| gastrointestinal parasitic worms in equines in the paraíba valley, state of são paulo, brazil. | over a period of 12 years, from 1988 to 2000, a total of 20 individual equines (16 horses and 4 mules) were selected at random, from 10 municipalities in the paraíba valley, in the state of são paulo, brazil, and then subjected to necropsy for collection of gastrointestinal worms. individual samples of 10% of the intestinal contents were also taken for counting and identifying the species present, and to establish the prevalence of worms in equine species in the paraíba valley. in the sample con ... | 2006 | 16687215 |
| new method for simultaneous species-specific identification of equine strongyles (nematoda, strongylida) by reverse line blot hybridization. | the ability of a reverse line blot (rlb) assay to identify 13 common species of equine small strongyles (cyathostomins) and to discriminate them from three strongylus spp. (large strongyles) was demonstrated. the assay relied on the specific hybridization of pcr-amplified intergenic spacer dna fragments of the nuclear ribosomal dna to membrane-bound species-specific probes. all cyathostomins examined were unequivocally identified and simultaneously discriminated from each other and from three la ... | 2007 | 17626168 |
| anthelmintic efficacies of a tablet formula of ivermectin-praziquantel on horses experimentally infected with three strongylus species. | in this blinded randomized and controlled study, the anthelmintic efficacy of a tablet formula of ivermectin-praziquantel was evaluated in horses experimentally infected with three species of strongylus larvae. eighteen previously dewormed horses were inoculated on study day 0 with third-stage larvae of strongylus vulgaris, strongylus equinus, and strongylus edentatus. the horses were randomly allocated to three groups (n = 6): test-drug (tablet formula), positive-control (reference gel), and ne ... | 2009 | 19488785 |
| parasite diversity and anthelmintic resistance in two herds of horses. | diversity of parasite populations was compared between two herds of horses, one a regularly treated herd the other a feral herd which has bad no anthelmintic treatment for at least 25 years. eggs obtained from fecal samples of both herds were tested for anthelmintic resistance by use of an in-vitro larval hatch/development assay (lda), drenchrite. a fecal egg reduction test was also performed with the domesticated herd using fenbendazole, pyrantel pamoate and ivermectin. cyathostomes were the pr ... | 1999 | 10485366 |
| role of lipids in the transmission of the infective stage (l3) of strongylus vulgaris (nematoda: strongylida). | infective larvae (l3) of strongylus vulgaris have limited energy stores for host finding and for infection. for transmission to occur, the larvae must have sufficient energy to (a) migrate onto grass, where they are ingested by their equine host (host finding), and (b) penetrate into the host gut. this study is designed to test the hypothesis that l3 larvae of s. vulgaris partition their energy stores between locomotory activity (used in host finding) and infection activity (penetration). chroni ... | 1997 | 9379277 |
| strongylus equinus: development and pathological effects in the equine host. | the development and pathological effects of strongylus equinus were studied in 17 pony foals and one horse foal raised in isolation and examined at necropsy from seven days to 40 wk postinfection (pi). following inoculation of 15000 +/- 6% or 16000 +/- 6% infective larvae by stomach tube foals were monitored for clinical signs and selected blood changes. larvae penetrated the wall of the ileum, cecum and colon. the molt to the fourth stage occurred mostly in the wall of the ventral colon before ... | 1985 | 4075237 |
| in vitro development of strongylus edentatus to the fourth larval stage with notes on strongylus vulgaris and strongylus equinus. | strongylus edentatus was successfully cultured in vitro to the fourth larval stage (l4). some growth continued for periods of 40-50 days at which time reductions in viability were observed in some of the culture systems tested. various combinations of media, sera, buffers and organ explant cultures were tested. all cultures were incubated at 37 c in an atmosphere of 95% air and 5% co2. larvae underwent growth and differentiation to the l4 in all medium-serum combinations with and without organ e ... | 1985 | 4032151 |
| prevalence and abundance of equine strongyles (nematoda: strongyloidea) in tropical australia. | a postmortem survey of 57 horses in tropical northern queensland revealed 41 (89%) infected with intestinal strongyles. thirty-five strongyle species (8 large strongyles and 27 small strongyles [cyathostominae]) were recorded of which 9 species are reported from australia for the first time. the 14 most prevalent small strongyles were cyathostomum catinatum (in 76% of horses), cyathostomum coronatum (65%), cyathostomum pateratum (33%), cyathostomum labiatum (30%), cylicostephanus calicatus (70%) ... | 1990 | 2380857 |
| [parasitic helminths of the cecum and colon of equidae in italy]. | intestinal helminths from coecum and colon were studied in 93 equidae including 40 horses, 36 donkeys and 17 mules. a total of 38 species, 36 nematodes and 2 cestodes, were identified as follows: 1) triodontophorus serratus, 2) triodontophorus brevicauda, 3) strongylus equinus, 4) strongylus edentatus, 5) strongylus vulgaris, 6) cyathostomum tetracanthum, 7) cyathostomum coronatum, 8) cyathostomum labiatum, 9) cyathostomum labratum, 10) cyathostomum alveatum, 11) cyathostomum pateratum, 12) cyat ... | 1992 | 1339978 |
| the strongylidae belonging to strongylus genus in horses from southeastern poland. | postmortem parasitic examinations of the large intestines of 725 slaughtered horses from individual farmers in southeastern poland were carried out. the examinations were carried out monthly since february 2006 until january 2007 (except for august 2007 because of a technological stoppage in the slaughterhouse). the examinations included the intensiveness and extensiveness of the infestation of the strongylidae belonging to the strongylus genus. the strongylidae were found in 26.5% of the examin ... | 2012 | 22961235 |
| epidemiological study of gastrointestinal helminths of equines in damot-gale district, wolaita zone, ethiopia. | the prevalence of equines helminthosis studied from november 2011 to may 2012 in two agroecological zones damot-gale district, wolaita zone, southern ethiopia. the objective of the study was to estimate the prevalence, and to see the distribution of internal helminth parasites of equines. a total of 500 faecal samples collected for coprological examination of gastrointestinal helminth ova. from each species of studied animals 200 positive faecal samples were pooled and cultured, and then the lar ... | 2015 | 26064026 |
| the complete mitochondrial genome of strongylus equinus (chromadorea: strongylidae): comparison with other closely related species and phylogenetic analyses. | the roundworms of genus strongylus are the common parasitic nematodes in the large intestine of equine, causing significant economic losses to the livestock industries. in spite of its importance, the genetic data and epidemiology of this parasite are not entirely understood. in the present study, the complete s. equinus mitochondrial (mt) genome was determined. the length of s. equinus mt genome dna sequence is 14,545 bp, containing 36 genes, of which 12 code for protein, 22 for transfer rna, a ... | 2015 | 26366671 |