Exposure to blue LED light before the onset of darkness under a long-day photoperiod alters melatonin secretion, feeding behaviour and growth in female dairy calves

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dc.authoridSugino, Toshihisa/0000-0001-5502-3451
dc.authoridElsabagh, Mabrouk/0000-0002-0596-6547
dc.contributor.authorElsabagh, Mabrouk
dc.contributor.authorMon, Mamiko
dc.contributor.authorTakao, Yui
dc.contributor.authorShinoda, Akiko
dc.contributor.authorWatanabe, Takashi
dc.contributor.authorKushibiki, Shiro
dc.contributor.authorObitsu, Taketo
dc.date.accessioned2024-11-07T13:35:12Z
dc.date.available2024-11-07T13:35:12Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe effect of blue LED on melatonin secretion, feeding behaviour and growth was addressed in Holstein female dairy calves. In Exp.1, six animals (8 weeks old, 97 +/- 4.1 kg BW) were exposed to yellow or blue LED for 2 hr before darkness over 7 days under a long-day photoperiod (LDPP). In Exp. 2, six animals (8 weeks old, 88.5 +/- 4.8 kg BW) were exposed to blue light from a white LED all daytime or a yellow LED for 2 hr before the darkness of LDPP (blue light cut) over 3 weeks. In Exp. 1, blue light mildly suppressed melatonin secretion during the 2-hr treatment but did not affect the timing of the nightly melatonin rise. However, the rise in nighty melatonin levels was higher with yellow than blue LED. In Exp. 2, white LED completely suppressed melatonin secretion during the 2-hr treatment, but plasma melatonin concentrations were similar during the darkness. Grass hay intake, rumination time, frequency of water intake and body weight gain were higher in animals exposed to the yellow rather than the white LED. Overall results indicate that exposure to blue light from white LEDs under an LDPP suppresses melatonin secretion and might negatively impact the development of female dairy calves.
dc.description.sponsorshipJapan Society for the Promotion of Science [15K14846]; Grants-in-Aid for Scientific Research [15K14846] Funding Source: KAKEN
dc.description.sponsorshipJapan Society for the Promotion of Science, Grant/Award Number: 15K14846
dc.identifier.doi10.1111/asj.13353
dc.identifier.issn1344-3941
dc.identifier.issn1740-0929
dc.identifier.issue1
dc.identifier.pmid32219969
dc.identifier.scopus2-s2.0-85081008538
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1111/asj.13353
dc.identifier.urihttps://hdl.handle.net/11480/16370
dc.identifier.volume91
dc.identifier.wosWOS:000587715000013
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofAnimal Science Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectblue light
dc.subjectfeeding behaviour
dc.subjectfemale dairy calf
dc.subjectgrowth
dc.subjectmelatonin
dc.subjectwhite LED
dc.titleExposure to blue LED light before the onset of darkness under a long-day photoperiod alters melatonin secretion, feeding behaviour and growth in female dairy calves
dc.typeArticle

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