Baylan M, Canogullari S, Ayasan T, Sahin A. Dietary Threonine Supplementation for Improving Growth Performance and Edible Carcass Parts in Japanese Quails, Coturnix coturnix Japonica. Int. J. Poult. Sci. 2006;5(7):635–638. doi:10.3923/ijps.2006.635.638