Brito , A. B. de, Stringhini, J. H., Filho, R. de M. J., Xavier, S. A. G., Cafe, M. B., & Leandro, N. S. M. (2013). Protein and Digestible Threonine Levels in Pre Starter Diets for Broiler Chicks. International Journal of Poultry Science, 12(7), 406–410. https://doi.org/10.3923/ijps.2013.406.410