7Bayram A, Ozkan S. Effects of a 16-hour light, 8-hour dark lighting schedule on behav- ioral traits and performance in male broiler chickens [J]. Appl. Pouh. Res. 2010,19: 263-273.
8Li W B, Guo Y L, Chen J L. et al. Influence of lighting schedule and nutrient density in broiler. Medicine [J]. 2011,43(5):44-47.
9Abbas A,El-dein A KA,Desoky A ,et al.Theeffects of photoperiod programs on broiler chicken performance and immune response [J]. Int. J. Pouh. Sci. 2008, 7: 665-671.
10Onbasilar E E,Eroll H,Cantekin Z, et al.In- fluence of intermittent lighting on broiler perfor- mance, incidence of tibial dyschondroplasia, ton- ic immobility, some blood parameters and anti- body production [J]. Asian-Aust. J. Anim. Sci. 2007,20 (4): 550-555.