Laboratory of Anatomy of Domestic Animal, College of Animal Medicine, China Agricultural University, Haidian, Beijing 100193, China.
Poult Sci. 2012 Dec;91(12):3013-8. doi: 10.3382/ps.2012-02413.
Our previous study suggested that green light promotes broiler growth during the early stage [posthatching day (P) 0 to P26], and blue light enhances growth during the later stage (P27 to P49). The purpose of this study was to improve broiler growth and productive performance by using a combination of monochromatic lights at critical points between the early and later stages of growth. A total of 512 male Arbor Acres broilers on P0 were reared under white light (W), red light (R), green light (G), and blue light (B) by using light-emitting diode lamps at 15 ± 0.2 lx from P0 to P26 (16 replicate pens/group, 8 birds/pen), and then switching to another color of light until P49 (4 replicate pens/group, 8 birds/pen). As compared with single monochromatic lights, broilers reared in environments under combinations of monochromatic lights, W→G, R→B, G→B, and B→G, attained heavier BW than those reared in environments under W→W (3.18 to 12.00%), R→R (1.96 to 18.14%), G→G (0.85 to 5.08%), and B→B (0.39 to 4.70%), respectively. In addition, feed conversion ratios in the W→B, R→B, and G→B combinations were lower than feed conversion ratios for W→W (15.86%, P < 0.05), R→R (18.41%, P < 0.05), and G→G (3.37%), respectively. Moreover, the eviscerated carcass weight and breast, thigh, and crus muscle weights under G→B were greater by 0.40 to 56.23% than were those for the other light groups except W→B (eviscerated carcass) and B→G (breast muscle). The results suggest that the application of the G→B and B→G exchanges can be used successfully to improve growth and productive performance in broilers.
我们之前的研究表明，绿光在育雏早期（出壳后第 0 天至第 26 天）促进肉鸡生长，蓝光在后期（第 27 天至第 49 天）促进生长。本研究旨在通过在生长早期和后期的关键阶段使用单色光组合来提高肉鸡的生长和生产性能。在第 0 天，将 512 只雄性 Arbor Acres 肉鸡饲养在白光（W）、红光（R）、绿光（G）和蓝光（B）下，使用发光二极管灯在 15 ± 0.2 lx 下从第 0 天到第 26 天（每组 16 个重复笔，每笔 8 只鸡），然后切换到另一种颜色的光，直到第 49 天（每组 4 个重复笔，每笔 8 只鸡）。与单一单色光相比，饲养在单色光组合环境中的肉鸡比饲养在 W→W（3.18 至 12.00%）、R→R（1.96 至 18.14%）、G→G（0.85 至 5.08%）和 B→B（0.39 至 4.70%）环境中的肉鸡体重更重。此外，W→B、R→B 和 G→B 组合的饲料转化率低于 W→W（15.86%，P<0.05）、R→R（18.41%，P<0.05）和 G→G（3.37%）的饲料转化率。此外，G→B 下的去内脏体重量和胸肌、大腿肌和小腿肌重量比其他光组（除 W→B（去内脏体）和 B→G（胸肌）外）高 0.40 至 56.23%。结果表明，G→B 和 B→G 交换的应用可成功用于提高肉鸡的生长和生产性能。
