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The Effect of Light-Emitting Diode Light on the Physical Traits of Chicks
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作者 Etimad Alattar Khitam Elwasife Eqbal Radwan 《Open Journal of Animal Sciences》 2019年第4期481-491,共11页
Environmental conditions including light are considered a critical element of chicks well-being. The aim of the present study was to investigate the effect of LED light on the physical traits of chicks. We took forty-... Environmental conditions including light are considered a critical element of chicks well-being. The aim of the present study was to investigate the effect of LED light on the physical traits of chicks. We took forty-one-day-old chicks and randomly separated it into two groups. The chicks in the first group were reared under the effect of incandescent lamp light and in the second one were under the effect of white LED lighting. Chicks were daily monitored for individual chick body, weight gain, feed intake, feather color and fear responses. The distance between chicks and source of light was 50 cm. Student’s t-test test was used for statistical evaluation at p < 0.05 level. The results of the current study showed that chicks reared under incandescent light bulb had significantly higher body weight compared with chicks reared under LED light. The magnitude of body weight in LED group was lower (1192.75 ± 149.9 g) compared to incandescent light group (1307.75 ± 110.5 g). The obtained results revealed that LED light reared chicks were more active;it showed long mobility duration and high levels of exploration in the farm as compared to those in incandescent light group. The results also indicated that incandescent light chicks were less fearful than LED chicks. Furthermore, the study showed that LED light reared chicks have pale pink combs and white feathers that cover all over the body. On the other hand, incandescent light reared chicks have dark red combs and whitish-yellow feathers that cover certain areas of the body especially chick wings, tail and head. 展开更多
关键词 LIGHT Emitting Diode incandescent bulb FEAR Response Physical TRAITS TONIC IMMOBILITY Test
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铁路色灯信号机灯泡的分析与设计 被引量:2
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作者 汪鸿 张治国 《现代工业经济和信息化》 2022年第8期46-47,50,共3页
介绍了透镜式色灯信号机的发展历程,分析了透镜式信号机使用的“单灯双丝”灯泡存在着技术缺陷,设计了透镜式信号机灯泡双灯一体化。该设计满足铁路标准的同时,克服现有灯泡避端,提升透镜式色灯信号机各方面的性能。
关键词 色灯信号机 白炽灯泡(TX12-25/12-25) 卤钨直柱型灯泡(LTX12-25/12-25) 双灯一体化灯泡
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国际社会逐步淘汰低效白炽灯情况 被引量:2
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作者 刘静茹 郁聪 《中国能源》 2010年第12期37-37,16,共2页
目前,在世界各国采用不同措施应对全球气候变暖的大背景下,逐步淘汰低效白炽灯已经成为大势所趋,各个国家纷纷制定计划,并相继以立法形式或采取一系列的政策措施来实现这一计划,本文重点介绍了国际社会逐步淘汰低效白炽灯的最新进展。
关键词 淘汰低效白炽灯 障碍 启示
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