The effect of antiparasitic applications on the growth of grazing heifers
1996
Gallo, M. | Rajcakova, L. | Mlynar, R. (Vyskumny Ustav Zivocisnej Vyroby, Poprad (Slovakia))
The goal was to investigate the effect of applications of Aldifal susp. and Ivomec Super on the growth and worm infestation of grazing heifers. The efficacy of the first Aldifal application to heifers was 67.78 % in coccidioses and 82.44 % in strongyloids. Ivomec Super was found to have the efficacy of 70.71 % in coccidioses and 90.99 % in strongyloids. It is evident that while the control group had the live weight gain of 497 g (s=125) in the grazing season, the experimental Aldifal-treated group showed the weight gain of 601 g (s=108) and the Ivomec Super group 651 g (s=183). The differences in heifer live weight were statistically insignificant. Applications of the antiparasitic preparations Aldifal and Ivomec Super to grazing heifers had positive effects. Ivomec Super application, in comparison with Aldifal susp. application, exhibited a 10 % advantage through the higher efficacy to control intestinal parasites, which was reflected by the higher growth rate.
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