Joshi, N.; Wandita, T. G.; Yang, S.; Park, H.; Hwang, S. G. Effects of Supplementing Laying Hens With Purified Amino Acid Prepared from Animal Blood. Trop. Anim. Sci. J. 2019, 42 (1), 46-52. https://doi.org/10.5398/tasj.2019.42.1.46.