A. Maiorka, A. V. F. da Silva, E. Santin, J. M. P. Jr., and M. Macari, “Broiler Breeder Age and Dietary Energy Level on Performance and Pancreas Lipase and Trypsin Activities of 7-days Old Chicks”, Int. J. Poult. Sci., vol. 3, no. 3, pp. 234–237, Feb. 2004, doi: 10.3923/ijps.2004.234.237.