1. Official Methods of Analysis;Association of Official Analytical Chemists (AOAC),1990
2. Effect of protein and energy intake by broiler breeders during the prebreeder transition period on subsequent reproductive performance;Brake;Poult. Sci.,1985
3. Breeder nutrition and offspring performance;Calini;Braz. J. Poult. Sci.,2007
4. Chen, D. Z. 2009. Effects of dietary energy and protein levels on growth performance, meat quality, and serum biochemical indices in CRP strain's roast sucking pigs. MD Diss. Sichuan Agric. Univ. Ya'an, P. R. China.
5. The names and calculation methods of poultry growth performance parameters;Chinese National Poultry Breeding Committee;Chin. Poult.,1984