Beer, M. de and Coon, C. 2009. The Effect of Different Feed Restriction Programs and Dietary L-Carnitine Supplementation on Reproductive Performance, Efficiency, Frame Size and Uniformity in Broiler Breeder Hens. International Journal of Poultry Science. 8, 5 (Apr. 2009), 409–425. DOI:https://doi.org/10.3923/ijps.2009.409.425.