The Effects of Different Intermittent Lighting Schedules Used in Different Diurnal Periods on Performances of Broilers

Authors : Kaan M İŞCAN

Pages : 711-718

View : 25 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this study, the effects of different lighting schedules on the performance and electricity use of broilers were compared. The study was undertaken in controlled chambers and a total of 1900 broilers were divided into 10 groups consisting of 190 broilers insert ignore into journalissuearticles values(12.85 chicks/m2);. Each group was housed in the pens of 3.65X4.05 m insert ignore into journalissuearticles values(14.78 m2);. In each pen the lighting density of 3 lux was supplied using a 40 watts of lamp. Broilers subjected to different daylight insert ignore into journalissuearticles values(9, 11, 15 hours); and an intermittent lighting insert ignore into journalissuearticles values(IL); regime consisting of 1 hr of light insert ignore into journalissuearticles values(L);: 1hr of darkness insert ignore into journalissuearticles values(D);, 1L:2D, 1L:3D and 23L:1D insert ignore into journalissuearticles values(control group); were compared from 0 to 42 days. All groups reared from 1 to 10 days with same lighting schedule as control group. Birds were provided ad libitum access to feed and water. Starter ration insert ignore into journalissuearticles values(23% CP and 3000 kcal ME/kg of feed);, grower ration insert ignore into journalissuearticles values(20% CP and 3100kcal ME/kg of feed);, and finisher ration insert ignore into journalissuearticles values(18.5 CP and 3150 kcal ME/kg of feed); were provided from 0 to 14, from 15 to 35, from 36-42 days of age respectively. The values of live weight, feed efficiency and mortality were determined on 10., 21. and 42. days of age in all groups. The mean live weights of all groups on 10th days of age were 191.03±0.74 g and there were no statistically significant differences between the groups. Statistically significant differences insert ignore into journalissuearticles values(P
Keywords : Broiler, lighting program, performance, electricity use