Arafat, A. R., H. A. Hassan, K. Y. Farroh, S. S. Elnesr, I. EL-wardany, and M. S. Bahnas. “Effects of Copper (Sulfate, Acetate and Nano) in Ovo Injection on Hatching Traits and Some Physiological Parameters of Newly-Hatched Broiler Chicks”. Journal of Advanced Laboratory Research in Biology, vol. 10, no. 3, July 2019, pp. 65-72,