Effects of Copper on Coccidiosis in Broiler Chickens

Document Type : Review Article

Author

M.Sc. Student of Poultry Nutrition, Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

Abstract

Coccidiosis is a widespread and costly intestinal disease in chicken and is caused by protozoan parasites of the genus Eimeria. Coccidiosis disrupts the morphology and function of the intestinal epithelium and negatively affects nutrient digestion and growth performance in broilers. Antioxidant drugs have traditionally been used to manage coccidiosis, but these compounds do not completely eliminate Eimeria infections. In addition, laws prohibiting the use and concern of consumers about the daily exposure of anti-coccidiosis compounds to animal feed have reduced their use. This has led to a greater emphasis on finding nutritional strategies to minimize the harm of Eimeria infection on the performance of broiler chickens. Oxidative stress due to increased production of reactive oxygen species in adverse environmental conditions and diseases are important factors in reducing the efficiency and health level of poultry especially in dense conditions. Coccidial infections reduce the level of antioxidant defense in patients and oxidative damage is a major contributor to disease-causing lesions. Therefore, enhancing the antioxidant system of chickens and avoiding oxidative compounds is important as a useful strategy in reducing disease wastes. Copper and zinc have antioxidant properties as a result of their catalytic function in the cytoplasmic enzyme superoxide dismutase. Therefore, different approaches, such as the inclusion of edible additives such as copper, can be effective.

Keywords


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