PDF(Pubmed)
Abstract：
Many farms have been replacing traditional lighting sources with light-emitting diode (LED) bulbs because of technological modernization. We aimed to investigate the effects of incandescent lighting (IL) and LED lighting on Cobb 500 broiler chickens for six weeks. Production parameters (body weight, feed consumption, feed conversion ratio), calculated slaughter values (yield%, relative breast%, thigh%) and breast meat quality parameters (pH at 45 min and 24 h postmortem, color, drip loss, kitchen equipment losses, shear force, meat composition) were recorded. Non-stop recordings were used to analyze the behavior of the birds during several periods of rearing. The LED group was significantly better in the body weight parameter between week 1 and 5 and the feed conversion ratio between week 2 and 3. The most significant difference in behavior was observed in the middle of the rearing period. The chickens in the LED group spent more time eating, drinking and interacting, and rested less. There was no difference in the meat quality parameters; only shear force was significantly lower in the LED group (1781.9 g/s vs. 2098.8 g/s). According to our results, LED lighting can bring about positive changes in animal production efficiency, behavior and other important characteristics for meat consumers.
摘要：
由于技术现代化，许多农场已经用发光二极管（LED）灯泡代替传统的照明光源。我们旨在研究白炽灯（IL）和LED照明对Cobb500肉鸡六周的影响。生产参数(体重、饲料消费，饲料转化率)，计算屠宰值(产量%，相对乳房%,大腿%)和胸肉质量参数(宰后45分钟和24小时的pH，颜色,滴水损失,厨房设备损失,剪切力,肉成分)被记录。不间断记录用于分析鸟类在几个饲养期间的行为。LED组在第1周和第5周之间的体重参数和第2周和第3周之间的饲料转化率方面明显更好。在饲养期的中期观察到最显着的行为差异。LED组的小鸡花更多的时间吃饭，饮酒和互动，休息得更少。肉质参数没有差异；LED组只有剪切力显着降低（1781.9g/s与2098.8g/s）。根据我们的结果,LED照明可以带来动物生产效率的积极变化，肉类消费者的行为和其他重要特征。
