{"title":"间歇性光照程序和光色对作为福利指标的肉鸡眼部健康变量的影响。","authors":"E Derelі Fіdan, R Yaygıngül, M Kaya","doi":"10.1080/00071668.2024.2383911","DOIUrl":null,"url":null,"abstract":"<p><p>1. The objective of the present study was to examine the effect of lighting programs and light colour on ocular health variables as welfare indicators in Ross 308 broilers.2. A total of 384, male, one-d-old broiler chickens (Ross 308) were placed in a completely randomised design with a 2 × 2 factorial arrangement of lighting program (continuous or intermittent) and light colour (white and green LED light). Ross 308 broilers under restricted lighting had 18 h of light (18 L:6D), while those under intermittent lighting had cycles of 17 L:3D:1 L:3D throughout the experimental period, which lasted 42 d.3. At the end of the experiment, all eyes of birds (<i>n</i> = 96 birds) underwent a complete ophthalmic examination, which included the Schirmer tear test I, intraocular pressure and eye dimensions. In addition, 32 broilers (eight birds per trial groups) aged 42 d underwent ophthalmic examination to include assessment of ocular ultrasound biometry.4. Light colour had a significant influence on the mean intraocular pressure (<i>p</i> < 0.001). The Ross 308 broilers kept with intermittent lighting had lower eye weights (2.29 g; <i>p</i> < 0.05), palpebral fissure length (14.39 mm; <i>p</i> < 0.01), eye dorsoventral diameter (17.46 mm; <i>p</i> < 0.05), anteroposterior size (13.70 mm; <i>p</i> < 0.01) and corneal dorsoventral diameter (7.81 mm; <i>p</i> < 0.05) compared to those reared under restricted lighting.5. In conclusion, these values for Ross 308 broilers may be applied in poultry ophthalmology to detect early eye disease symptoms and to help the diagnosis of tear disorders that could cause economic losses and welfare issues. Intermittent lighting and green LED light may help reduce eye health problems thus contributing to improved welfare in broilers.</p>","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of intermittent lighting program and light colour on ocular health variables as welfare indicators in broiler chickens.\",\"authors\":\"E Derelі Fіdan, R Yaygıngül, M Kaya\",\"doi\":\"10.1080/00071668.2024.2383911\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>1. The objective of the present study was to examine the effect of lighting programs and light colour on ocular health variables as welfare indicators in Ross 308 broilers.2. A total of 384, male, one-d-old broiler chickens (Ross 308) were placed in a completely randomised design with a 2 × 2 factorial arrangement of lighting program (continuous or intermittent) and light colour (white and green LED light). Ross 308 broilers under restricted lighting had 18 h of light (18 L:6D), while those under intermittent lighting had cycles of 17 L:3D:1 L:3D throughout the experimental period, which lasted 42 d.3. At the end of the experiment, all eyes of birds (<i>n</i> = 96 birds) underwent a complete ophthalmic examination, which included the Schirmer tear test I, intraocular pressure and eye dimensions. In addition, 32 broilers (eight birds per trial groups) aged 42 d underwent ophthalmic examination to include assessment of ocular ultrasound biometry.4. Light colour had a significant influence on the mean intraocular pressure (<i>p</i> < 0.001). The Ross 308 broilers kept with intermittent lighting had lower eye weights (2.29 g; <i>p</i> < 0.05), palpebral fissure length (14.39 mm; <i>p</i> < 0.01), eye dorsoventral diameter (17.46 mm; <i>p</i> < 0.05), anteroposterior size (13.70 mm; <i>p</i> < 0.01) and corneal dorsoventral diameter (7.81 mm; <i>p</i> < 0.05) compared to those reared under restricted lighting.5. In conclusion, these values for Ross 308 broilers may be applied in poultry ophthalmology to detect early eye disease symptoms and to help the diagnosis of tear disorders that could cause economic losses and welfare issues. Intermittent lighting and green LED light may help reduce eye health problems thus contributing to improved welfare in broilers.</p>\",\"PeriodicalId\":9322,\"journal\":{\"name\":\"British Poultry Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"British Poultry Science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1080/00071668.2024.2383911\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"AGRICULTURE, DAIRY & ANIMAL SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"British Poultry Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1080/00071668.2024.2383911","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
摘要
1.本研究的目的是考察光照程序和光色对作为福利指标的罗斯 308 肉鸡眼部健康变量的影响。 2. 将 384 只一龄雄性肉鸡(罗斯 308)置于完全随机设计的光照程序(连续或间歇)和光色(白色和绿色 LED 灯)的 2 × 2 因子排列中。限制光照下的罗斯 308 肉鸡有 18 小时的光照(18 L:6D),而间歇光照下的肉鸡在整个实验期间的光照周期为 17 L:3D:1L:3D,实验持续 42 d.3 实验结束时,对所有鸡只的眼睛(n = 96 只)进行了全面的眼科检查,包括施尔默泪液测试 I、眼压和眼球尺寸。此外,32 只 42 d 大的肉鸡(每个试验组 8 只)接受了眼科检查,包括眼部超声波生物测量评估。 光色对平均眼压有显著影响(p p p p p p
Effects of intermittent lighting program and light colour on ocular health variables as welfare indicators in broiler chickens.
1. The objective of the present study was to examine the effect of lighting programs and light colour on ocular health variables as welfare indicators in Ross 308 broilers.2. A total of 384, male, one-d-old broiler chickens (Ross 308) were placed in a completely randomised design with a 2 × 2 factorial arrangement of lighting program (continuous or intermittent) and light colour (white and green LED light). Ross 308 broilers under restricted lighting had 18 h of light (18 L:6D), while those under intermittent lighting had cycles of 17 L:3D:1 L:3D throughout the experimental period, which lasted 42 d.3. At the end of the experiment, all eyes of birds (n = 96 birds) underwent a complete ophthalmic examination, which included the Schirmer tear test I, intraocular pressure and eye dimensions. In addition, 32 broilers (eight birds per trial groups) aged 42 d underwent ophthalmic examination to include assessment of ocular ultrasound biometry.4. Light colour had a significant influence on the mean intraocular pressure (p < 0.001). The Ross 308 broilers kept with intermittent lighting had lower eye weights (2.29 g; p < 0.05), palpebral fissure length (14.39 mm; p < 0.01), eye dorsoventral diameter (17.46 mm; p < 0.05), anteroposterior size (13.70 mm; p < 0.01) and corneal dorsoventral diameter (7.81 mm; p < 0.05) compared to those reared under restricted lighting.5. In conclusion, these values for Ross 308 broilers may be applied in poultry ophthalmology to detect early eye disease symptoms and to help the diagnosis of tear disorders that could cause economic losses and welfare issues. Intermittent lighting and green LED light may help reduce eye health problems thus contributing to improved welfare in broilers.
期刊介绍:
From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .