Metwaly, Mohammed R.K., Gamal A.M. Sosa, Mary G. Abdel-Malak, and Mohamed El-Raey Mohamed. “Protective Effects of Nano Zinc on Barki Ram Semen Viability”. Journal of Advanced Veterinary Research 13, no. 5 (June 30, 2023): 743-752. Accessed May 14, 2024. https://advetresearch.com/index.php/AVR/article/view/1377.