In Vitro: The Effects of the Anticoccidial Activities of Calotropis procera Leaf Extracts on Eimeria stiedae Oocysts Isolated from Rabbits

Hepatic coccidiosis is an infectious and mortal disease that causes global economic losses in rabbits. The research aimed to assess the efficacy of leaf extracts on the inhibition of oocysts and to determine the optimal dosage for suppressing the parasite's infective phase. In this experiment, oocyst samples per milliliter were tested, and 6-well plates (2 mL) of 2.5% potassium dichromate solution containing 10 non-sporulated oocysts on leaf extracts were exposed after 24, 48, 72, and 96 h, and the treatments were as follows: a nontreated control, 25%, 50%, 100%, and 150% of for oocyst activities. In addition, amprolium was utilized as a reference drug. The was analyzed by GC-Mass, and results showed that the botanical extract contained 9 chemical components that were able to inhibit the oocysts of at 100% and 150% concentrations by about 78% and 93%, respectively. In general, an increase in the incubation period and a greater dose resulted in a decrease in the inhibition rate. The results showed that has an effective ability, inhibitory potential, and protective effect on the coccidian oocyst sporulation of . It can be used in the disinfection and sterilization of poultry and rabbit houses to get rid of oocysts.