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  • Title: Efficacy of maduramicin ammonium against coccidiosis in turkeys under laboratory and floor-pen conditions.
    Author: McDougald LR, Fuller AL, Mathis GF, Wang GT.
    Journal: Avian Dis; 1990; 34(3):634-8. PubMed ID: 2241692.
    Abstract:
    Experimental infections with field isolates of Eimeria meleagrimitis, E. adenoeides, E. gallopavonis, and E. dispersa in turkey poults were used to test the efficacy of maduramicin ammonium at 2.5-10 ppm in laboratory experiments. Infection with single or mixed species of coccidia reduced the weight gain of unmedicated infected controls and caused 18.1-65% mortality in two experiments. Maduramicin ammonium given at 5-7 ppm prevented mortality, significantly reduced droppings scores and oocyst passage, and improved weight gain to near that of the unmedicated uninfected controls. Maduramicin ammonium was tested at 4-7 ppm in a floor-pen trial lasting 10 weeks. Mortality from coccidiosis averaged 11.9% in unmedicated controls, compared with 0.6% with 4 ppm of maduramicin or no mortality with 5-7 ppm. Average weight gain and feed conversion at 10 weeks were significantly improved over unmedicated infected controls when maduramicin ammonium was given at 5-7 ppm. These results suggest that maduramicin ammonium is highly efficacious against field isolates of Eimeria in turkeys, especially within the range of 5-7 ppm in the feed.
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