Effect of combinations of monochromatic lights on growth and productive performance of broilers
Effect of combinations of monochromatic lights on growth and productive performance of broilers
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单色光组合对肉鸡生长和生产性能的影响
DOI：
10.3382/ps.2012-02413
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发表时间：
2012-12-01
期刊：
影响因子：
4.4
通讯作者：
Chen, Y.
中科院分区：
文献类型：
--
作者：
Cao, J.;Wang, Z.;Chen, Y.
我们前期的研究表明，绿光促进了早期[育后日(P) 0 ~ P26]肉鸡的生长，蓝光促进了后期（P27 ~ P49）肉鸡的生长。本试验的目的是通过在肉鸡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。选取PO期雄性爱拔加肉仔鸡512只，在白光(W)、红光(r)、绿光(G)、蓝光(B)下，使用15 +/- 0.2 lx的发光二极管灯，从PO至P26（16个重复栏/组，8只鸟/笔），然后切换到其他颜色的光，直到P49（4个重复栏/组，8只鸟/笔）。与单色光相比，单色光组合W -> G、R -> B、G -> B和B -> G环境下的肉鸡体重分别高于W -> W（3.18 ~ 12.00%）、R -> R（1.96 ~ 18.14%）、G -> G（0.85 ~ 5.08%）和B -> B（0.39 ~ 4.70%）。此外，W -> B、R -> B和G -> B组合的饲料利用率分别低于W -> W （15.86%, P < 0.05）、R -> R （18.41%, P < 0.05）和G -> G（3.37%）。除W -> B组（全膛胴体）和B -> G组（胸肌）外，G -> B组的全膛胴体重和胸、大腿、小腿肌质量比其他轻组高0.40 ~ 56.23%。由此可见，G - b>g和B - bb1g交换剂的应用可成功提高肉鸡的生长和生产性能。
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 PO 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 PO 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.