McGruder, B.; Zhai, W.; Keralapurath, M.; Gerard, P.; Peebles , E. Effects of In Ovo Injection of Stimulant Solutions on Growth and Yolk Utilization in Broiler Embryos. Int. J. Poult. Sci. 2011, 10 (5), 338–343. https://doi.org/10.3923/ijps.2011.338.343.