Fasina, Y.O., E.T. Moran, C.M. Ashwell, D.E. Conner, M. Leslie, and S.R. Mckee. 2007. “Effect of Dietary Gelatin Supplementation on the Expression of Selected Enterocyte Genes, Intestinal Development and Early Chick Performance”. International Journal of Poultry Science 6 (12): 944–951. https://doi.org/10.3923/ijps.2007.944.951.