| Bioactivity | Clazuril (R62690) has a coccidiocidal effect on the asexual and sexual developmental stages of both Eimeria species, resulting in a complete interruption of the life cycle[1]. |
| In Vivo | Clazuril (2.5 mg/pigeon) results in a rapid suppression of oocyst excretion, but oocysts are again observed in the feces 20 days after treatment. The fact that oocysts appears again in the feces 3 to 5 weeks after treatment can probably be explained only by a persistence of endogenous stages, which are not affected during treatment, rather than by a reinfection [2]. |
| Name | Clazuril |
| CAS | 101831-36-1 |
| Formula | C17H10Cl2N4O2 |
| Molar Mass | 373.19 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. W Coussement, et al. Action of the anticoccidial clazuril on the endogenous stages of Eimeria labbeana and E columbarum in experimentally infected pigeons. Res Vet Sci. 1988 Jul;45(1):117-9. [2]. J Vercruysse, et al. Efficacy of toltrazuril and clazuril against experimental infections with Eimeria labbeana and E. columbarum in racing pigeons. Avian Dis. Jan-Mar 1990;34(1):73-9. |