1- Al-Murrani, W. K., A. Kassab, H. Z. Al-Sam and A. M. Al-Athari. 1997. Heterophil/lymphocyte ratio as a selection criterion for heat resistance in domestic fowls. British Poultry Science, 38: 159–163.
2- Ahmad, H. A., M. M. Bryant, S. Kucuktas and D. A. Roland. 1997. Econometric feeding and management for first cycle phase two DeKalb Delta hens. Poultry Science, 76: 1256–1263.
3- AOAC International. 1990. Official Methods of Analysis. 11th ed. AOAC International, Gaithersburg, MD
4- Beer, M. and C. N. Coon. 2007. The Effect of different feed restriction programs on reproductive performance, efficiency, frame size, and uniformity in broiler breeder hens. Poultry Science, 86: 1927–1939
5- Crouch, A. N., J. L. Grimes, V. L. Christensen and J. D. Garlich. 1999. Restriction of feed consumption and body weight in two strains of Large White turkey breeder hens. Poultry Science, 78: 1102–1109.
6- Crouch, A. N., J. L. Grimes, V. L. Christensen and K. K. Krueger. 2002a. Effect of physical feed restriction during rearing on Large White turkey breeder hens: 1. growth performance. Poultry Science, 81: 9–15.
7- Crouch, A. N., J. L. Grimes, V. L. Christensen and K. K. Krueger. 2002b. Effect of physical feed restriction during rearing on Large White turkey breeder hens: 1. reproductive performance. Poultry Science, 81: 16–22.
8- Etalem T., T. Berhan, H. Aynalem and D. Tadelle. 2009. Effects of feed restriction on production and reproductive performance of Rhode Island Red pullets. African Journal of Agricultural Research, 4 (7), pp. 642-648
9- Kari, R. R., J. H. Quisenberry and J. W. Bradley. 1977. Egg quality and performance as influenced by restricted feeding of commercial caged layers. Poultry Science, 56: 1914–1919.
10- Lucas, A. M. and C. Jamroz. 1961. Atlas of avian hematology. Agriculture Monograph 25. USDA, Washington, DC.
11- McFarlane, J. M. and S. E. Curtis. 1989. Multiple concurrent stressors in chicks. 3. Effects on plasma corticosterone and the heterophil: lymphocyte ratio. Poultry Science, 68:522–527.
12- Rafaele F. M., R. F. Ednardo, S. S. Francislene and L. F. Alisson.2012. Effect of feed restriction with voluntary hay intake on the performance and quality of laying hen eggs. Animal Sciences, p. 149-154.
13- SAS Institute, Inc. 1989. SAS/STAT users guide. Version 6, Vol. 1.SAS Institute Inc., Cary, NC.
14- Snetsinger, D.C. and R. Zimmerman. 1974. Limiting the energy intake of laying hens. British Poultry Science, 185-199.
15- Sun-Young K., Y. Hyun Ko, Y. So Moon, S. H. Sohn and I. S. Jang. 2011. Effects of the combined stress induced by stocking density and feed restriction on hematological and cytokine parameters as stress indicators in laying hens. Asian-Australian Journal of Animal Science, 24: 414 – 420
16- Susbilla, P., T. L. Frankel, G. Parkinson and and C. B. Gow. 1994. Weight of internal organs and carcass yield of early food restricted broilers. British Poultry Science, 35: 677-685.
17- Waldrop, P. M. and M. I. Hellwing. 2000. The potential value of morning and afternoon feeds for laying hens feeds. Journal of Applied Poultry Research, 9: 98-110
18- Zubair, A. K. and S. Leeson. 1994. Effect of early feed restriction and realimentation on heat production and changes in sizes f digestive organs of male broilers. Poultry Science, 73: 529–538.
19- Zuidhof, M. J., F. E. Robinson, J. J. R. Feddes, R. T. Hardin, J. L. Wilson, R. I. Mckay and M. Newcombe. 1995. The effects of nutrient dilution on the well-being and performance of female broiler breeders. Poultry Science, 74:441–456.