Ghasemi, H. (2006) “The Effect of Phytase and Saccharomyces cervisiae (Sc47) Supplementation on Performance, Serum Parameters, Phosphorous and Calcium Retention of Broiler Chickens”, International Journal of Poultry Science, 5(2), pp. 162–168. doi:10.3923/ijps.2006.162.168.