Cygro® 1% Uses As an aid in the prevention of coccidiosis caused by Eimeria necatrix, E. tenella, E. acervulina, E. brunetti, E. maxima and E. mivati. As an aid in the prevention of coccidiosis in turkeys caused by Eimeria melagrimitis, E. gallopavonis, E. adenoides and E. dispersa.