n Onderstepoort Journal of Veterinary Research - Anthelmintic activity of acetone extracts from South African plants used on egg hatching of : original research

Volume 83, Issue 1
  • ISSN : 0030-2465
  • E-ISSN: 2219-0635



The nematode, , is responsible for major economic losses in the livestock industry. The management of parasites such as has been through the use of synthetic parasiticides. This has resulted in the presence of residues in meat and milk, which affects food safety. The development of resistance to available anthelmintics coupled with their high cost has further complicated matters. This has led to the investigation of alternative methods to manage nematodes, including the use of plants and plant extracts as a potential source of novel anthelmintics. Acetone extracts were prepared from 15 South African plant species and their anthelmintic activity determined using the egg hatch assay (EHA). The leaf extract of had the best inhibitory activity (68% ± 3%) at a concentration of 2.5 mg/mL, followed by the stem extract of (65% ± 5%). The extracts had a relatively low toxicity on Vero cells determined by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) cellular assay.

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