Additives and antibiotics made a lot of problems of the human health, for example the cancer and decrease human immunity system. For that reason the European Union and other counties don't allow to use antibiotic and many types of chemical additives for feeding animals. To solve this problems we use the bee pollen as supplement dietary additives as well an alternative antibiotic into broiler?s feed mixture, to increase the broiler growth performance and to an improve the broiler meat quietly without health problem Это и многое другое вы найдете в книге Impact of bee pollen on Broiler growth performance and meat quality (Ibrahim Omer Elimam)