Effects of monochromatic light on immune response of broilers
Effects of monochromatic light on immune response of broilers
复制标题
单色光对肉鸡免疫反应的影响
DOI：
10.3382/ps.2007-00317
复制
发表时间：
2008-08-01
期刊：
影响因子：
4.4
通讯作者：
Chen, Y. X.
中科院分区：
文献类型：
--
作者：
Xie, D.;Wang, Z. X.;Chen, Y. X.
选用260只1日龄爱拔益加肉公鸡，采用发光二极管光源分别照射红光（RL）、绿色光（GL）、蓝光（BL）和白色光（WL）7 wk。每个光处理有5个重复围栏，每个围栏13只鸟。研究了单色光对免疫应答的影响。结果表明，21日龄时，GL组外周血T淋巴细胞增殖活性明显高于RL组和BL组（分别增加80.8%和54.8%）（P < 0.05）。49日龄时，BL组的增殖反应显著高于RL组（26.9%，P < 0.05）。28日龄时，GL组血清抗新城疫病毒水平显著高于RL组（32.9%，P < 0.05）。BL、RL、WL组间血清抗新城疫病毒水平差异不显著（P > 0.05）。49日龄时，BL组抗体滴度高于RL组（62.8%，P < 0.05）。然而，在此年龄，BL、GL和WL组之间的抗体滴度没有显著差异。49日龄时，BL组血清IL-1 β水平较RL组降低44.0%（P < 0.05）。以上结果表明，GL和BL对肉鸡免疫应答的增强作用优于RL，BL可能具有缓解应激反应的作用。
A total of 260 one-day-old Arbor Acres male broilers were exposed to red light (RL), green light (GL), blue light (BL), and white light (WL), respectively, by using a light-emitting diode system for 7 wk. There were 5 replicate pens for each light treatment and 13 birds per pen. The effects of monochromatic light on the immune response were studied. The results indicated that proliferation of peripheral blood T lymphocytes in the GL group was significantly increased (by 80.8 and 54.8%) compared with those in the RL and BL groups, respectively, at 21 d of age (P < 0.05). At 49 d of age, however, the proliferation response was significantly increased in the BL group compared with the RL group (26.9%, P < 0.05). Moreover, the GL group showed a significant elevation in the serum anti-Newcastle disease virus level as compared with that of the RL group at 28 d of age (32.9%, P < 0.05). In contrast, no significant difference in serum anti-Newcastle disease virus level was observed among the BL, RL, and WL groups at this age (P > 0.05). By 49 d of age, the antibody titer was higher in the BL group than in the RL group (62.8%, P < 0.05). However, no significant difference in antibody titer was seen among the BL, GL, and WL groups at this age. Interestingly, the BL group showed a 44.0% reduction in the level of serum interleukin-1 beta as compared with that in the RL group at 49 d of age (P < 0.05). These results suggest that GL and BL enhance the immune response better than RL, and that BL may play a role in alleviating the stress response in broilers.