Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts
High melatonin concentrations were expected to negatively affect Atlantic salmon appetite. Hence, individually kept Atlantic salmon postsmolts were subjected to continuous light (24:0, L:L) or natural daylight (12:12, L:D) and then given intraperitoneal implants of slow release melatonin in a 2 by 2...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2015-12-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://www.aspajournal.it/index.php/ijas/article/view/4098 |
| _version_ | 1818043563126030336 |
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| author | Silvia Maiolo Tom Hansen Giuliana Parisi Rolf Erik Olsen |
| author_facet | Silvia Maiolo Tom Hansen Giuliana Parisi Rolf Erik Olsen |
| author_sort | Silvia Maiolo |
| collection | DOAJ |
| description | High melatonin concentrations were expected to negatively affect Atlantic salmon appetite. Hence, individually kept Atlantic salmon postsmolts were subjected to continuous light (24:0, L:L) or natural daylight (12:12, L:D) and then given intraperitoneal implants of slow release melatonin in a 2 by 2 factorial design. Possible effects on food intake were monitored over three weeks. In addition, a plasma melatonin assessment test was run in parallel to monitor diurnal blood levels of melatonin through the trial. The surgical intervention was effective, leading to a 10x increase in mean melatonin levels when compared to control fish, but neither the implant nor the change in daylight had any significant effect on feed intake, at least in the short term. |
| first_indexed | 2024-12-10T09:04:12Z |
| format | Article |
| id | doaj.art-7430d767c1b8480d96ae985a59a3d340 |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-10T09:04:12Z |
| publishDate | 2015-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-7430d767c1b8480d96ae985a59a3d3402022-12-22T01:55:11ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2015-12-0114410.4081/ijas.2015.40982426Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmoltsSilvia Maiolo0Tom Hansen1Giuliana Parisi2Rolf Erik Olsen3Dipartimento di Scienze delle Produzioni Agroalimentari e dell’Ambiente, University of FlorenceInstitute of Marine Research, BergenDipartimento di Scienze delle Produzioni Agroalimentari e dell’Ambiente, University of FlorenceInstitute of Marine Research, Bergen; Department of Biology, Norwegian University of Science and Technology, TrondheimHigh melatonin concentrations were expected to negatively affect Atlantic salmon appetite. Hence, individually kept Atlantic salmon postsmolts were subjected to continuous light (24:0, L:L) or natural daylight (12:12, L:D) and then given intraperitoneal implants of slow release melatonin in a 2 by 2 factorial design. Possible effects on food intake were monitored over three weeks. In addition, a plasma melatonin assessment test was run in parallel to monitor diurnal blood levels of melatonin through the trial. The surgical intervention was effective, leading to a 10x increase in mean melatonin levels when compared to control fish, but neither the implant nor the change in daylight had any significant effect on feed intake, at least in the short term.http://www.aspajournal.it/index.php/ijas/article/view/4098Atlantic salmonMelatonin implantFeed intakePhotoperiod |
| spellingShingle | Silvia Maiolo Tom Hansen Giuliana Parisi Rolf Erik Olsen Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts Italian Journal of Animal Science Atlantic salmon Melatonin implant Feed intake Photoperiod |
| title | Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts |
| title_full | Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts |
| title_fullStr | Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts |
| title_full_unstemmed | Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts |
| title_short | Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts |
| title_sort | effects of photoperiod and melatonin implants on feed intake in atlantic salmon salmo salar l postsmolts |
| topic | Atlantic salmon Melatonin implant Feed intake Photoperiod |
| url | http://www.aspajournal.it/index.php/ijas/article/view/4098 |
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