摘要
本试验分别采用红（660nm）、绿（560nm）、蓝（480nm）3种发光二级管（处理组）和白炽灯（400～770nm）（对照组），对180羽海兰褐蛋鸡进行人工照明，每组45羽，光强度均为15lx，光照时间为16h，试验期为19～52周龄。结果表明：19-36周龄，蓝光组产蛋率（86．8±0．5）％显著高于其它光照组（P〈0．05），其日产蛋量最高（47．7±0．34）g，料蛋比（2．75±0．07）最低，后两者与红光和绿光组比较差异显著（P〈0．05）。37～52周龄，红光组产蛋率显著高于蓝光和绿光组（P〈0．05），白光组日产蛋量（59．0±0．74）g显著高于其它组（P〈0．05），其料蛋比（2．1±0．04）最低。19～36周龄，各组破蛋率之间差异不显著（P〉0．05），但白光组软蛋率（1．3±0．3）％显著低于其它组（P〈0．05）。在37-52周龄，各组破蛋率和软蛋率之间差异不显著（P〉0．05）。结果表明：在15lx光强度下，试验前期（19-36周龄）选用蓝光照明，后期（37～52周龄）改为白炽灯，可以显著提高产蛋量和饲料转换率．
Nineteen to fifty-two weeks old Hy-Line Brown hens were exposed to red （660 nm, R）, green （560 nm, G） and blue （480 nm, B） light from light emitting diode （LED） lamps and incandescent light （400-770 nm, W） in this study. There were 45 hens in each treatment. All light sources were equalized under 15 lx light intensity for 16 hr daily. The results show： 1） From 19 to 36 weeks, the laying rate in B light （86.8%±0. 5%） was significantly higher （P〈 0. 05） than those in other lights; the daily egg yield （47.7±0.34g） in B light was the highest and the feed conversion rate （2.75±0.07） in B light was the lowest among the four light treatments; the daily egg yield and the feed conversion rate in B light were significantly higher （P〈0.05） than those in R and G lights. 2） From 37 to 52 weeks, the laying rate in R light was significantly higher （P〈0.05） than those in B and G lights, but the egg mass （59.0±0. 74 g） in W light was significantly higher （P〈0. 05） than those in other lights, and its feed conversion rate （2. 1± 0.04） was the lowest among the four light treatments. 3） There were no significant differences （P〈0.05） in cracked egg percentage among all light treatments an d the soft-shell percentage in W light （1.3%±0.3%） was significantly lower （P〈0.05） than those in other lights from 19 to 36 weeks. The cracked egg percentage and the soft-shell percentage were not significant difference in all light groups from 37 to 52 weeks respectively. These results showed that the egg production and feed conversion rate would be increased in laying hens when who was illuminated with either blue light in early experimental stage or W light in latter experimental stage under 15 lx light intensity.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2007年第1期40-45,共6页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
北京市自然科学基金(No.6032014)
高等学校博士科学点专项科研基金(No.2004019002)
新世纪优秀人才支持计划(No.NCET-04-0126)资助
关键词
单色光
蛋鸡
产蛋性能
monochromatic light
egg performance laying hens
