PDF(Pubmed)
Abstract：
The use of artificial lighting during the incubation phase is a tool that has been studied with the aim of increasing the production rates and hatchability. Using this, this study aims to investigate the effects of the luminous incidence of white and red monochromatic light on the production and metabolism of broiler chicks subjected to low temperatures. A total of 315 eggs of Ross 708 heavy breeders were used. The eggs were distributed randomly, with 35 eggs per tray, totaling 105 eggs per incubator. The treatments were the following: incubation without the use of light; the use of white monochromatic light; and the use of red monochromatic light. The lamps used were of the LED type. The samples were distributed in the factorial completely randomized experimental design with position effect on the tray. Candling, egg weighing, calculating the probability of survival and egg weight loss were performed. Temperatures were recorded using a thermographic camera. At birth, three chicks per tray were euthanized for evaluation: weight with and without yolk residue, gastrointestinal tract biometry, and blood and liver biochemistry. Analyses were performed using the R computational program. It was observed that there was a significant effect of the treatments on the levels of calcium, phosphorus, cholesterol, amylase, glucose, urea and glutamate pyruvate transaminase on the biochemical profile of the blood and on the thermographic temperatures of the eggs; the experiment was kept at low temperatures resulting in thermal stress, with an average temperature of 34.5 °C. Therefore, the use of red and white monochromatic light in the artificial incubation process for brown-colored eggs is not recommended, because in the post-hatching phase, it promoted the metabolism dysregulation on the blood biochemical profile to control the differentiation in the wavelength of traditional incubation.
摘要：
在孵化阶段使用人工照明是一种旨在提高生产率和孵化率的工具。使用这个，本研究旨在探讨白色和红色单色光入射对低温条件下肉鸡生产和代谢的影响。总共使用了315个Ross708重育种者的卵。鸡蛋是随机分配的，每盘35个鸡蛋,每个孵化器共有105个鸡蛋。处理如下:不使用光的孵育;使用白色单色光;和使用红色单色光。所使用的灯是LED类型的。将样品分布在具有对托盘的位置影响的因子完全随机实验设计中。蜡烛,鸡蛋称重,计算存活概率和鸡蛋体重减轻.使用热成像相机记录温度。出生时,每个托盘对三只小鸡实施安乐死以进行评估：有和没有蛋黄残留物的体重，胃肠道生物测定,血液和肝脏生化.使用R计算程序进行分析。据观察，治疗对钙水平有显著影响，磷，胆固醇,淀粉酶，葡萄糖，尿素和谷氨酸丙酮酸转氨酶对血液的生化特征和鸡蛋的热成像温度;实验保持在低温下，导致热应力，平均温度为34.5℃。因此,不建议在棕色鸡蛋的人工孵化过程中使用红色和白色单色光，因为在孵化后阶段，它促进了血液生化曲线上的代谢失调，以控制在传统孵育波长内的分化。
