probable multigeneric resistance to macrocyclic lactone anthelmintics in cattle in new establish the efficacy of topical formulations of eprinomectin and abamectin against naturally acquired abomasal and small intestinal nematode infections in cattle purchased from a north island bull-beef property.200316032313
anthelmintic efficacy of oxfendazole in calves.oxfendazole, methyl [5-(phenylsulfinyl)-1h-benzimidazol-2-yl]carbamate given to calves at dose level of 2.5 mg/kg as a paste, as a bolus, or as a drench resulted in excellent (97 to 100%) anthelmintic efficacy against mature ostertagia ostertagi, trichostrongylus axei, cooperia oncophora, c mcmasteri, c pectinata, c punctata, nematodirus helvetianus, trichostrongylus longispicularis, chabertia ovina, and oesophagostomum radiatum. against the early 4th stage larvage of o ostertagia and n helvetia ...1978567947
monthly fluctuations of worm burdens and hypobiosis of gastrointestinal nematodes of calves in extensive management systems in the pyrenees (spain).monthly fluctuations of worm burdens and arrested development of gastrointestinal nematodes in cattle from a mountainous region of spain were studied. fourteen previously helminth-naive calves grazed together with a herd of 120 cattle from may to november following the traditional extensive grazing system used in mountainous regions of spain (permanent calves). each month, throughout the grazing season, two helminth-naive calves (tracer calves) were added to the herd and allowed to graze for 4 w ...19969017870
prevalence and epidemiology of trichostrongylids in wyoming cattle with consideration of the inhibited development of ostertagia ostertagi.during 1988, monthly collections of abomasa and the cranial portion of the small intestine of 208 native wyoming cattle were examined for adult and larval helminth parasites. egg counts were performed on colonic faecal specimens. the animals ranged from 7 months to 8 years of age and were sampled at slaughter houses or diagnostic laboratories from five different counties in the state. most of the cattle had ranged for a long time on non-irrigated, high altitude grass plains from about 1250 to 25 ...19968893483
activity of doramectin against nematode endoparasites of cattle.a series of 28 controlled anthelmintic studies, involving 634 cattle, was conducted throughout north america and europe to evaluate the efficacy of doramectin against a broad range of gastrointestinal parasitic nematode species and lungworms in naturally and experimentally infected animals. within each study, one or two groups were treated with doramectin at 200 micrograms kg-1 and another group received no drug treatment. worm burdens were estimated by standardised techniques, and efficacy asse ...19938236735
[helminth fauna of syrian cattle].in this work the stomach and the small intestine of 34 and the large intestine of 4 more cattle were examined. 91,17% of the examined cattle (31 in 34 animals) had infected the stomach and/or the small intestine by parasites. 14 kinds of nematodes were found. the average intensity of infection of the stomach was higher than that of the small intestine. with the exception of higher infection in 3 stomachs and 2 small intestines the intensity of infection in all other cases was from small to mediu ...1979453633
the nematodes ostertagia lyrata sjöberg, 1926, and trichostrongylus longispicularis gordon, 1933, in british cattle. 195913666893
intestinal nematodes of white-tailed deer in southeastern united states.the small intestine, large intestine, and cecum of 975 white-tailed deer (odocoileus virginianus) from 83 localities in 13 southeastern states were examined for nematodes. in order of prevalence, the following parasites were found: capillaria bovis, eucyathostomum webbi, monodontus louisianensis, nematodirus odocoilei, oesophagostomum venulosum, trichuris sp, cooperia punctata, trichostrongylus longispicularis, strongyloides sp, cooperia oncophora, cooperia spatulata, cooperia sp, and trichostro ...1976977456
[trichostrongylus longispicularis (nematoda: trichostrongylidae) in swine from valdivia, chile (author's transl)]. 1977911436
experimental cross-infections with gastrointestinal nematodes of sheep and cattle.five parasite-free lambs and five parasite-free calves were infected experimentally with 20,000 third stage gastrointestinal nematode larvae cultured from faeces of sheep from five different farms. in the same way five lambs and five calves were infected with larvae cultured from faeces of calves from five different farms. host specificity of the nematodes was determined using the following parameters: infection rate; number, size, and stage of the worms; their distribution within the gastrointe ...19817245840
a note on the specific identity of trichostrongylus longispicularis gordon, 1933. 195613319679
[trichostrongylus longispicularis gordon, 1933 in cattle in brazil (trichostrongylidae, nematoda)]. 1977905603
efficacy of albendazole for treatment of naturally acquired nematode infections in washington cattle.albendazole, methyl 5-propylthio-1h-benzimidazol-2-yl carbamate, was given as a bolus (7.68 to 8.18 mg/kg of body weight) to cattle naturally infected with gastrointestinal nematodes and lungworms in a controlled trial. over 99% of adult ostertagia ostertagi, trichostrongylus longispicularis, cooperia oncophora, nematodirus helvetianus, and dictyocaulus viviparus were removed by the treatment. efficacy against immature o ostertagi, early fourth-stage o ostertagi, and oesophagostomum radiatum was ...1979157705
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