Effect of ivermectin and oxfendazole on shedding of larvae of the lungworm (Dictyocaulus viviparus) by red deer (Cervus elaphus)

Authors: Mason PC, Bowie JY, Mackintosh CG
Publication: New Zealand Veterinary Journal, Volume 35, Issue 1-2, pp 8-10, Jan 1987
Publisher: Taylor and Francis

Animal type: Deer, Livestock, Production animal, Ruminant
Subject Terms: Animal remedies/veterinary medicines, Anthelmintics, Parasite control, Parasites - internal, Respiratory system, Nematode, Treatment/therapy
Article class: Scientific Article

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Abstract: Thirty eight newly weaned hinds were randomly allocated to one of two equal groups. One group received ivermectin, the other, oxfendazole at dose rates of 0.2 mg/kg and 4.5 mg/kg, respectively. All deer were drenched four times and were grazed on pasture. Both anthelmintics reduced D. viviparus faecal larval counts to low levels 20 days after dosing, but the mean larval output and the proportion of deer shedding D. viviparus larvae at 27 and 33 days after treatment, were significantly lower in the ivermectin treated group. There was no significant difference in weight gain between the two groups throughout the trial. This study suggests that ivermectin prevents reinfection with D. viviparus for approximately 14 days longer than oxfendazole.

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