Ndubuisi, D.I., Abdulrashid, M., and Daudu, O.M. “The Role of Selenium in Ameliorating Heat Stress on Thermoregulatory, Growth and Haematological Indices of Broiler Chickens”. Nigerian Journal of Animal Science and Technology (NJAST), Vol. 4, no. 1, May 2021, pp. 19 -32, http://www.njast.com.ng/index.php/home/article/view/129.