parasites of domestic and wild animals in south africa. xlii. helminths of sheep on four farms in the eastern cape monthly intervals for periods ranging from 9 to 25 consecutive months between three and four merino yearling-sheep and two merino lambs on three farms in eastern cape thornveld, and two dorper yearling-sheep on a farm in valley bushveld were slaughtered and examined for helminths. the merino sheep were infected with 15 nematode species, of which haemonchus contortus, nematodirus spathiger and trichostrongylus spp. were the most numerous, and with four cestode species. the dorper sheep were in ...200314621313
in-vitro anthelminthic activity of crude aqueous extracts of aloe ferox, leonotis leonurus and elephantorrhiza elephantina against haemonchus contortus.aloe ferox (mill), leonotis leonurus (l) r. br; and elephantorrhiza elephantina (burch.) skeels are plants frequently used by resource-limited farmers in the eastern cape province to control gastrointestinal parasites in goats. a study was conducted to validate their anthelminthic activities in-vitro on the egg and larvae of the nematode parasite haemonchus contortus. the crude aqueous extracts of leaves of a. ferox and l. leonurus; and roots of e. elephantina were used. eggs and larvae of the p ...201019693685
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