1. Aviagen, J. 2011. Ross 308 parent stock: performance objectives. Newbridge: Aviagen Ltd.
2. Bowling, M., R. Forder, R.J. Hughes, S. Weaver and P.I. Hynd. 2018. Effect of restricted feed intake in broiler breeder hens on their stress levels and the growth and immunology of their offspring. Translational Animal Science, 2: 263-71. [
DOI:10.1093/tas/txy064]
3. De Jong, I., S.V. Voorst, D. Ehlhardt and H. Blokhuis. 2002. Effects of restricted feeding on physiological stress parameters in growing broiler breeders. British poultry science, 43: 157-68. [
DOI:10.1080/00071660120121355]
4. Enting, H., A. Veldman, M.W. Verstegen and P. Van Der Aar. 2007. The effect of low-density diets on broiler breeder development and nutrient digestibility during the rearing period. Poultry science, 86: 720-6. [
DOI:10.1093/ps/86.4.720]
5. Estevez, I., R.C. Newberry and L.A. De Reyna. 1997. Broiler chickens: a tolerant social system. Etologia, 5.
6. French, S.S., D.F. DeNardo and M. Moore. 2007. Trade-offs between the reproductive and immune systems: facultative responses to resources or obligate responses to reproduction? The American Naturalist, 170: 79-89. [
DOI:10.1086/518569]
7. Gross, W. and H. Siegel. 1983. Evaluation of the heterophil/lymphocyte ratio as a measure of stress in chickens. Avian diseases, 47: 972-9. [
DOI:10.2307/1590198]
8. Guardia, S., B. Konsak, S. Combes, F. Levenez, L. Cauquil, J.F. Guillot, C. Moreau-Vauzelle, M. Lessire, H. Juin and I. Gabriel. 2011. Effects of stocking density on the growth performance and digestive microbiota of broiler chickens. Poultry science, 90: 1878-89. [
DOI:10.3382/ps.2010-01311]
9. Hocking, P., V. Zaczek, E. Jones and M.J. Macleod. 2004. Different concentrations and sources of dietary fibre may improve the welfare of female broiler breeders. British Poultry Science, 45: 9-19. [
DOI:10.1080/00071660410001668806]
10. Jeroch, H. 2011. Recommendations for energy and nutrients of Layers. A critical review. Lohmann Information, 46: 61-72.
11. Kang, H., S. Park, S. Kim and C. Kim. 2016. Effects of stock density on the laying performance, blood parameter, corticosterone, litter quality, gas emission and bone mineral density of laying hens in floor pens. Poultry science, 95: 2764-70. [
DOI:10.3382/ps/pew264]
12. Keeling, L., I. Estevez, R. Newberry and M.J. Correia. 2003. Production-related traits of layers reared in different sized flocks: the concept of problematic intermediate group sizes. Poultry science, 82: 1393-6. [
DOI:10.1093/ps/82.9.1393]
13. Klasing, K.J. 2007. Nutrition and the immune system. British poultry science, 48: 525-37. [
DOI:10.1080/00071660701671336]
14. Leeson, S. and J. Summers. 1984. Effects of cage density and diet energy concentration on the performance of growing Leghorn pullets subjected to early induced maturity. Poultry Science, 63: 875-82. [
DOI:10.3382/ps.0630875]
15. Lochmiller, R.L. and C. Deerenberg. 2000. Trade offs in evolutionary immunology: just what is the cost of immunity? Oikos, 88: 87-98. [
DOI:10.1034/j.1600-0706.2000.880110.x]
16. Maxwell, M.J. 1993. Avian blood leucocyte responses to stress. World's Poultry Science Journal, 49: 34-43. [
DOI:10.1079/WPS19930004]
17. Mohiti-Asli, M., M. Ghanaatparast-Rashti and M. Tavakoli-Alamooti. 2016. Effect of sodium bentonite litter supplement and stocking density on growth performance of broiler and litter quality in summer. Iranian Journal of animal Science, 47: 441-451 (In Persian).
18. Mohiti-Asli, M., M. Shivazad, M. Zaghari, S. Aminzadeh, M. Rezaian and G. Mateos. 2012. Dietary fibers and crude protein content alleviate hepatic fat deposition and obesity in broiler breeder hens. Poultry Science, 91: 3107-14. [
DOI:10.3382/ps.2011-02040]
19. Mousavi, S.N., A.J. Aravari, E. Fahimi, R. Taherkhani and P. Zamani. 2020. Effects of physical form of feed and cage density on laying performance and pattern and egg quality of laying hens. Iranian Journal of Animal Science, 51: 27-36 (In Persian).
20. Mtileni, B., K. Nephawe, A. Nesamvuni and K. Benyi. 2007. The influence of stocking density on body weight, egg weight and feed intake of adult broiler breeder hens. Poultry science, 86: 1615-9. [
DOI:10.1093/ps/86.8.1615]
21. Omidi, S., M. Ebrahimi, H. Janmohammadi, H. Taghipour, S.H. Peighambardust and H. Ghassemzadeh. 2019. The Effect of in ovo injection with different L-Arginine levels on hatchability, growth, performance and meat quality of Ross 308 broiler chickens. Research on Animal Production, 10: 69-78 (In Persian). [
DOI:10.29252/rap.10.25.69]
22. Onbaşılar, E., Ö. Poyraz and S. Çetin. 2008. Effects of breeder age and stocking density on performance, carcass characteristics and some stress parameters of broilers. Asian-Australasian Journal of Animal Science, 21: 262-9. [
DOI:10.5713/ajas.2008.70409]
23. Puron, D., R. Santamaria, J.C. Segura and J.L. Alamilla. 1995. Broiler performance at different stocking densities. Journal of Applied Poultry Research, 4: 55-60. [
DOI:10.1093/japr/4.1.55]
24. Rios, R., A. Bertechini, J. Carvalho, S. Castro and V.A. Costa. 2009. Effect of cage density on the performance of 25 to 84 week old laying hens. Brazilian Journal of Poultry Science, 11: 257-62. [
DOI:10.1590/S1516-635X2009000400007]
25. SAS Institute. 2010. SAS User's Guide version 9.2. SAS Inst. Inc., Cary, NC.
26. Savory, C. and L. Kostal. 1996. Temporal patterning of oral stereotypies in restricted-fed fowls: 1. Investigations with a Sibgle daily meal. International journal of comparative psychology, 9(3): 117-39. [
DOI:10.46867/C43W3J]
27. Savory, C. and J.M. Lariviere. 2000. Effects of qualitative and quantitative food restriction treatments on feeding motivational state and general activity level of growing broiler breeders. Applied Animal Behaviour Science, 69: 135-47. [
DOI:10.1016/S0168-1591(00)00123-4]
28. Tong, H., J. Lu, J. Zou, Q. Wang and S. Shi. 2012. Effects of stocking density on growth performance, carcass yield and immune status of a local chicken breed. Poultry science, 91: 667-73. [
DOI:10.3382/ps.2011-01597]
29. Yousefi Kalarikolaie, K., S.A. Hosseini, M. Mohiti-Asli, H. Yousefi Kalarikolaie and A. Meymandipour. 2016. Effects of energy and digestible Methionine level in diet on performance and reproductive traits of Arian broiler breeder hens during production period. Research On Animal Production, 7: 15-9 (In Persian). [
DOI:10.18869/acadpub.rap.7.13.15]
30. Zuidhof, M., F. Robinson, J. Feddes, R. Hardin, J. Wilson, McKay, R. and M. Newcombe. 1995. The effects of nutrient dilution on the well-being and performance of female broiler breeders. Poultry Science, 74: 441-56. [
DOI:10.3382/ps.0740441]