Giraldo-Carmona , J.A., W. Narvaez-Solarte, and E.A. Diaz-Lopez. 2015. “On Top Dose of Vitamin D As the Only Source in the First Week of Broilers”. International Journal of Poultry Science 14 (9): 533–536. https://doi.org/10.3923/ijps.2015.533.536.