G. E. Eisa, S. . Abdelfatah, H. A. Abdellatif, and F. F. Mohamed, “Effect of in ovo Injection of L-Threonine on Hatchability Followed by post-hatch Extra Level of Dietary Threonine on the Performance of Broilers”, JAVR, vol. 12, no. 5, pp. 605-612, Oct. 2022.