Ahmed , S. K., & Rasheed, E. A. (2017). Effect of Dietary β-hydroxy-β-methylbutyrate Calcium on Carcass Cuts, Serum Biochemistry, Bone Characteristics and Digestive Tract pH of Broiler Chickens. International Journal of Poultry Science, 16(4), 154–159. https://doi.org/10.3923/ijps.2017.154.159