Coccidiosis, a protozoal disease caused by a species of the Eimeria genus, causes tremendous economic damage to the poultry industry. Numerous natural remedies have been developed to combat emerging drug-resistant Eimeria species and mitigate public concerns about anticoccidial drug residues in poultry products. In the current study, the anticoccidial efficacy was evaluated of a commercial mixed botanical product, administered in two concentrations, in the treatment and control of a mixed coccidian infection. In this respect, 120 newly hatched broiler chickens were randomly allocated into five equal groups: Cox500, Cox1000, Positive control (PC), Negative control (NC), and Control (C). The first three groups were exposed to oocysts of several Eimeria species, Cox500 and Cox1000, and then received the two concentrations of a botanical blend (500 and 1,000 ml of formula per 1,000 L of drinking water, respectively) for five consecutive days. The positive control also received toltrazuril (7 mg/kg of live weight) through drinking water for two consecutive days. The negative control and control were the challenged-unmedicated and unchallenged-unmedicated groups, respectively. The chicks were monitored for clinical signs, intestinal lesions, performance indices, and oocyst shedding. The results indicated that the tested botanical formula in both concentrations improved the growth performance of the birds. However, the higher concentration prompted lower oocyst shedding and, likewise, toltrazuril in the positive control, healed cecal lesions more rapidly. In summary, the blended botanical formula, particularly in the higher concentration (1,000 ml per 1,000 L of drinking water), could successfully be incorporated into therapeutic strategies against coccidiosis in broiler flocks.

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