摘要
为了探讨肉用仔鸡在育雏期最佳的光照制度,本试验利用3000只美国爱拔益加AA肉用仔鸡,在自行设计的间歇光照制度及低光照强度的环境中(1 L:3 D,3 lux),观测不同时期实施控光对肉用仔鸡生产性能的影响。试验结果表明:肉仔鸡育雏期(7日龄)时实施控光的第一组(1 L:3 D,3 lux)比21日龄时实施控光的第二组(1 L:3 D,3lux)出栏群平均个体重提高4.70％(P>0.05),饲料利用率提高6.67％;比第三组(24L、25 lux)出栏群平均个体重提高11.36％(P<0.05),饲料利用率提高20.85％。证明,肉仔鸡在育雏期(7日龄)开始实施人工控光,综合效益显著。
Three thousand AA broiler chciks were used in selfdesigned intermittent lightening system and the environment of low lightening intensity to observe the effect of using controlled lightening at different periodson the productivity of broiler chicks. The experimental results showed that the average on -market weight and feed utilization ratio of group I treated with the controlled lightening (1 L : 3D, 3 lux)at7 day old were increased by 4.70% and 6.67% comparing to those of group II treated with the controlled lightening(1 L : 3D,3 lux)at 21 day old, 11.36% (P<0.05)and 20.85% to those of the coutro1 group treated with the normal lightening (24L, 25 lux), respectively. It was confirmed that the productivity of broiler chicks could be increased significantly by using the intermittent low -intensity lightening system at 7-day old.
出处
《黑龙江八一农垦大学学报》
1992年第2期75-79,共5页
journal of heilongjiang bayi agricultural university
关键词
鸡
育雏
仔鸡
控光
Broiler
chick
Feed utilization ratio
Intermittent lightening.
