Abdulateef S M, Al-Bayar M A, Majid A A, Shawkat S S, Tatar A, Al-Ani M Q
Department of Animal Production, College of Agriculture, University of Anbar, Ramadi, Anbar, Iraq.
Department of Animal Sciences, College of Agricultural Sciences, University of Sulaimani, Kurdistan, Iraq.
Vet World. 2021 May;14(5):1284-1289. doi: 10.14202/vetworld.2021.1284-1289. Epub 2021 May 24.
Many environmental factors exist that influence embryonic development which is missing in the poultry industry, such as light in incubation facilities or hatcheries. Light plays an important role in the growth and development of chick embryos, whereas dark environments can lead to hatching failure or embryo distortion. Therefore, this study aimed to demonstrate the importance of light and its various colors on the growth and development of broiler chick embryos.
Four treatments were used to study the impact of various light colors on the growth of embryos and their neurophysiological traits: Dark without light (D), red light (RL), blue light (BL), and green light (GL), with three replicates per treatment (25 eggs/replicate) for a total of 300 fertile Ross 308 eggs. Each treatment was assigned to one incubator (75 eggs/incubator), whereas all other conditions were kept the same.
The results showed a significant increase (p<0.01) in embryonic development for embryo weight, chick body weight, hatchability, and embryo index for RL, BL, and especially GL. RL, BL, and especially GL significantly increased (p<0.01) neurophysiological traits of the neurons, brain weight, and brain index.
The use of light during the embryonic period affects the development of the embryo and its neurophysiological traits.
家禽行业中存在许多影响胚胎发育的环境因素缺失的情况，如孵化设施或孵化场中的光照。光照在雏鸡胚胎的生长发育中起着重要作用，而黑暗环境会导致孵化失败或胚胎畸形。因此，本研究旨在证明光照及其不同颜色对肉鸡胚胎生长发育的重要性。
采用四种处理来研究不同颜色光照对胚胎生长及其神经生理特性的影响：无光黑暗（D）、红光（RL）、蓝光（BL）和绿光（GL），每个处理设置三个重复（每个重复25枚蛋），共300枚可育的罗斯308种蛋。每个处理分配到一个孵化器（每个孵化器75枚蛋），而所有其他条件保持相同。
结果显示，红光、蓝光尤其是绿光处理组的胚胎发育在胚胎重量、雏鸡体重、孵化率和胚胎指数方面显著增加（p<0.01）。红光、蓝光尤其是绿光显著增加（p<0.01）了神经元的神经生理特性、脑重量和脑指数。
胚胎期使用光照会影响胚胎的发育及其神经生理特性。
