Effect of Clopidol and Amprolium/Ethopabate on performance and intestinal morphology of chickens with experimental coccidiosis [Deneysel koksidiyozlu tavuklarda clopidol ve amprolium/ethopabate uygulamasi{dotless}ni{dotless}n performans ve barsak morfolojisine etkisi]

To investigate effects of two anticoccidial drugs on growth performance and intestinal mucosa in experimental coccidiosis,broiler chicks challenged/medicated by oocytes of eimeria/clopidol and amprolium + ethopabate. there were negative effects on growth performance in chickens infected/medicated by these drugs. most morphometric parameters of intestine were decreased in infected or medicated groups compared to negative control (p<0.05). duodenal villus height in infected/unmedicated group and villus surface area in all infected groups were lowest between infected or medicated groups (p<0.05). duodenal villus width was also decreased in all medicated groups compared to negative control,but this decreasing was only significant in infected / medicated groups. jejunal villus height,width and surface area in infected/unmedicated group were lowest as compared to other uninfected / medicated groups (p<0.05). ileal villus height in infected/unmedicated group were lowest as compared to all medicated groups. in infected/medicated groups,ileal villus surface area was significantly lower than uninfected/medicated groups. there were no significant differences between clopidol- and amprolium + ethopabate-medicated groups in intestinal morphometric assessment. it is concluded that clopidol and amprolium + ethopabate have adverse effects on chicken performance and intestinal morphology especially villus dimensions and absorptive surface during control or prevention of coccidiosis.