MartInez, B. F.; Contreras, A. A.; Gonzalez, E. A. Use of Saccharomyces Cerevisiae Cell Walls in Diets for Two Genetic Strains of Laying Hens Reared in Floor and Cages. Int. J. Poult. Sci. 2010, 9 (2), 105–108. https://doi.org/10.3923/ijps.2010.105.108.