Hassanabadi, A., and H. Nassiri Moghaddam. “Effect of Early Feed Restriction on Performance Characteristics and Serum Thyroxin of Broiler Chickens”. International Journal of Poultry Science, vol. 5, no. 12, Nov. 2006, pp. 1156–1159, https://doi.org/10.3923/ijps.2006.1156.1159.