Determining the optimal level and the effect of different zinc sources on performance, egg quality and the immune system of laying hens at the end of the production period

Trace elements, such as zinc, magnesium and copper, are essential for improving the performance and health of broiler breeders and the development of chicken embryos. These elements are integral to various proteins involved in metabolism, hormone secretion and the immune system, necessitating their inclusion in small amounts in poultry diets.