Velásquez , A. et al. 2022. Inclusion of Secale cereale and Pentosanases in the Ration of Laying Hens: Exploring its Effect on Egg Production and Concentrate Intake and Searching the Optimal Combination in a Diet. International Journal of Poultry Science. 21, 4 (Apr. 2022), 151–158. DOI:https://doi.org/10.3923/ijps.2022.151.158.