Alva, V.I.A., L.J.A. Quintana, I.C. Gonzales-Rebeles, and A.M. Gonzalez. 2015. “Effect of Photoperiod on Production of Ring-Necked Pheasants (Phasianus Colchicus)”. International Journal of Poultry Science 14 (12): 651–656. https://doi.org/10.3923/ijps.2015.651.656.