EFFICACY OF IVOMEC(R)-F AGAINST NATURALLY ACQUIRED GASTROINTESTINAL WORMS, LUNG WORMS (DICTYOCALUS-FILARIA) AND LIVER FLUKES (FASCIOLA-HEPATICA) IN SHEEP

The efficacy of IVOMEC(R)-F against naturally acquired endoparasite in fection and its safety were assessed in sheep under field conditions. The efficacy component of the trial included 50 non-lactating Merino e wes, approximately 2 to 7 years of age and weighing 40 to 65 kg. Addit ionally 282 sheep of the same breed, age and weight range were utilize d to evaluate the acceptability of the drug formulation. The animals n aturally infected with gastrointestinal and lung worms and liver fluke s were treated with IVOMEC(R)-F given subcutaneously at 0.5 ml/25 kg b ody weight. Faecal samples were examined from the 50 animals included in the efficacy component of the trial on Days 0 and 14. Faecal strong ylid egg counts, Fasciola hepatica egg counts and Dictyocaulus filaria larval counts were reduced by > 99%,98% and 100%, respectively. No ad verse reactions attributable to treatment were observed in any of the treated animals.