Effects of monochromatic light on growth performance, welfare and hormone levels in broiler chickens

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dc.contributor.authorHelva, I. B.
dc.contributor.authorAksit, M.
dc.contributor.authorYalcin, S.
dc.date.accessioned2019-10-27T09:42:46Z
dc.date.available2019-10-27T09:42:46Z
dc.date.issued2019
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study aimed to investigate the effect of the colour of monochromic light-emitting diode (LED) lighting on growth performance, tonic immobility duration, gait score, and hormone concentration in broilers. A total of 540 one-day-old broilers were randomly assigned into three lighting treatments: 1) 517-623 nm, 6500 K (white, WL), 2) 440 -480 nm (blue, BL), and 3) 503-540 nm (green, GL) LED light. Body weight and feed intake were recorded, weekly. The duration of tonic immobility and the gait score of the broilers were determined at d 28 and 35. Concentrations of growth hormone (GH), adrenocorticotropic hormone (ACTH) and insulin-like growth factor (IGF-1) were assayed on d 1, 7, 21 and 42. From d 14 to 42 broilers of the BL and GL groups were heavier than of the WL group. Although, there was no effect of lighting treatment on feed intake from d 0 to 21, GL and BL broilers consumed more feed than WL broilers from d 22 to 42. The duration of tonic immobility was not influenced by the LED light colour. Sex had a significant effect on tonic immobility duration. It was shorter in males than in females. There was no difference among groups in gait score at d 28. However, a better walking ability was obtained under GL on d 35. The WL broilers had the highest IGF-1 concentration on d 7. On d 42, birds under BL and GL lighting had lower ACTH concentration than under WL. The present results suggested that BL and GL improved body weight and reduced stress response of broilers. Furthermore, walking ability of broilers can be improved by GL lighting.en_US
dc.description.sponsorshipAdnan Menderes University, Scientific Research Projects DepartmentsAdnan Menderes University [ADU CMYO-16001]en_US
dc.description.sponsorshipThis project was supported by Adnan Menderes University, Scientific Research Projects Departments (Project No: ADU CMYO-16001).en_US
dc.identifier.doi10.1399/eps.2019.273
dc.identifier.issn1612-9199
dc.identifier.issn1612-9199en_US
dc.identifier.urihttps://doi.org/10.1399/eps.2019.273
dc.identifier.urihttps://hdl.handle.net/11454/28811
dc.identifier.volume83en_US
dc.identifier.wosWOS:000474608800001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherEugen Ulmer Gmbh Coen_US
dc.relation.ispartofEuropean Poultry Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectgreen lighten_US
dc.subjectblue lighten_US
dc.subjectgrowthen_US
dc.subjectgait scoreen_US
dc.subjecttonic immobilityen_US
dc.subjectgrowth hormoneen_US
dc.subjectadrenocorticotropinen_US
dc.subjectinsulin-likeen_US
dc.subjectgrowth factoren_US
dc.titleEffects of monochromatic light on growth performance, welfare and hormone levels in broiler chickensen_US
dc.typeArticleen_US

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