Rozenboim I, Biran I, Uni Z, Robinzon B, Halevy O
The Hebrew University of Jerusalem, Faculty of Agriculture, Department of Animal Science, Rehovot, Israel.
Poult Sci. 1999 Jan;78(1):135-8. doi: 10.1093/ps/78.1.135.
Artificial illumination, including light quality, is crucial in modem broiler management. In the present study, a new, highly efficient, monochromatic light system has been developed for broilers. One hundred and eighty male broiler chicks (Anak) were divided into four light treatment groups (n = 45) in three replicates each. All birds were housed in a single room previously divided by wooden bars into 12 sealed cells of 1 m2. Feed and water were provided for ad libitum consumption. Light intensity was 0.1 W/m2 at the height of birds' heads and was scheduled for 23 h of light and 1 h of dark during the entire experimental period. Light treatments were: control white (mini-incandescent light bulbs), blue (480 nm), green (560 nm), and red (660 nm). Body weight was recorded periodically, feed consumption was measured daily, and feed efficiency was calculated. Blood samples were taken at 1, 9, and 32 d of age and plasma testosterone was determined. Two necropsies were conducted, at 23 and 35 d of age, and selected glands and organs were weighed. In the group reared under green light, a significant enhancement in weight gain was observed as early as 3 d of age; this gain was maintained during the entire experimental period. Broilers reared under blue light had a later onset of growth enhancement and were significantly heavier than those reared under white and red light at 20 d of age. Plasma testosterone levels were significantly higher in birds reared under blue light. Breast muscle weights were significantly higher in the birds reared under green light at 23 and 35 d of age. These results suggest that green and blue light stimulate growth.
人工照明，包括光质，在现代肉鸡养殖管理中至关重要。在本研究中，已为肉鸡开发出一种新型高效单色光系统。180只雄性肉鸡雏鸡（阿纳克品种）被分为四个光照处理组（每组n = 45只），每组重复三次。所有鸡只饲养在一个先前用木条分隔成12个1平方米密封单元的单房间内。提供饲料和水供其自由采食。在鸡只头部高度处的光照强度为0.1 W/m²，在整个实验期间安排23小时光照和1小时黑暗。光照处理分别为：对照白光（小型白炽灯泡）、蓝光（480纳米）、绿光（560纳米）和红光（660纳米）。定期记录体重，每天测量采食量，并计算饲料效率。在1日龄、9日龄和32日龄采集血样并测定血浆睾酮水平。在23日龄和35日龄进行两次剖检，并对选定的腺体和器官称重。在绿光饲养组中，早在3日龄时就观察到体重增加显著增强；在整个实验期间体重持续增加。蓝光饲养的肉鸡生长增强开始较晚，在20日龄时显著重于白光和红光饲养的肉鸡。蓝光饲养的鸡只血浆睾酮水平显著更高。在23日龄和35日龄时，绿光饲养的鸡只胸肌重量显著更高。这些结果表明绿光和蓝光可刺激生长。
