Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon
A period of starvation is regarded as a sound practice in aquaculture prior to handling, transportation and harvest, to minimise impacts on welfare and ensure proper hygiene after harvest. However, documentation of welfare issues such as stress following starvation and handling in adult Atlantic sal...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2017-04-01
|
| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/3273.pdf |
| _version_ | 1797418604183945216 |
|---|---|
| author | Rune Waagbø Sven Martin Jørgensen Gerrit Timmerhaus Olav Breck Pål A. Olsvik |
| author_facet | Rune Waagbø Sven Martin Jørgensen Gerrit Timmerhaus Olav Breck Pål A. Olsvik |
| author_sort | Rune Waagbø |
| collection | DOAJ |
| description | A period of starvation is regarded as a sound practice in aquaculture prior to handling, transportation and harvest, to minimise impacts on welfare and ensure proper hygiene after harvest. However, documentation of welfare issues such as stress following starvation and handling in adult Atlantic salmon are lacking. This study aimed to examine gut emptying and potential stress during a two week starvation period, and whether this starvation period changed the tolerance for physical stress. The study confirmed slower emptying of the gut segments at low temperature. Plasma and bile cortisol, and selected clinical analyses were used to characterize potential stress, as well as the response to acute physical crowding stress during the starvation period. Neither the general stress level nor the ability to cope with handling stress was affected by a 14 day starvation period. Down-regulation of selected nutritional related gene markers in liver indicated classical starvation responses, with reduced metabolism and oxidative pressure, and sparing of nutrients. The response to acute handling stress was not affected by two weeks of starvation. There were minor effects of starvation on stress and health markers, as evaluated by plasma lysozyme activity and gene expression of selected inflammation marker proteins in heart and skin tissues. |
| first_indexed | 2024-03-09T06:36:18Z |
| format | Article |
| id | doaj.art-8b38ae42292946d79ceaf7115b528f05 |
| institution | Directory Open Access Journal |
| issn | 2167-8359 |
| language | English |
| last_indexed | 2024-03-09T06:36:18Z |
| publishDate | 2017-04-01 |
| publisher | PeerJ Inc. |
| record_format | Article |
| series | PeerJ |
| spelling | doaj.art-8b38ae42292946d79ceaf7115b528f052023-12-03T10:58:00ZengPeerJ Inc.PeerJ2167-83592017-04-015e327310.7717/peerj.3273Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmonRune Waagbø0Sven Martin Jørgensen1Gerrit Timmerhaus2Olav Breck3Pål A. Olsvik4National Institute of Nutrition and Seafood Research, Bergen, NorwayNofima, Ås, NorwayNofima, Ås, NorwayMarine Harvest ASA, Bergen, NorwayNational Institute of Nutrition and Seafood Research, Bergen, NorwayA period of starvation is regarded as a sound practice in aquaculture prior to handling, transportation and harvest, to minimise impacts on welfare and ensure proper hygiene after harvest. However, documentation of welfare issues such as stress following starvation and handling in adult Atlantic salmon are lacking. This study aimed to examine gut emptying and potential stress during a two week starvation period, and whether this starvation period changed the tolerance for physical stress. The study confirmed slower emptying of the gut segments at low temperature. Plasma and bile cortisol, and selected clinical analyses were used to characterize potential stress, as well as the response to acute physical crowding stress during the starvation period. Neither the general stress level nor the ability to cope with handling stress was affected by a 14 day starvation period. Down-regulation of selected nutritional related gene markers in liver indicated classical starvation responses, with reduced metabolism and oxidative pressure, and sparing of nutrients. The response to acute handling stress was not affected by two weeks of starvation. There were minor effects of starvation on stress and health markers, as evaluated by plasma lysozyme activity and gene expression of selected inflammation marker proteins in heart and skin tissues.https://peerj.com/articles/3273.pdfGut evacuationAtlantic salmonMetabolismImmunityHeart stress signalingMucosal integrity |
| spellingShingle | Rune Waagbø Sven Martin Jørgensen Gerrit Timmerhaus Olav Breck Pål A. Olsvik Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon PeerJ Gut evacuation Atlantic salmon Metabolism Immunity Heart stress signaling Mucosal integrity |
| title | Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon |
| title_full | Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon |
| title_fullStr | Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon |
| title_full_unstemmed | Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon |
| title_short | Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon |
| title_sort | short term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult atlantic salmon |
| topic | Gut evacuation Atlantic salmon Metabolism Immunity Heart stress signaling Mucosal integrity |
| url | https://peerj.com/articles/3273.pdf |
| work_keys_str_mv | AT runewaagbø shorttermstarvationatlowtemperaturepriortoharvestdoesnotimpactthehealthandacutestressresponseofadultatlanticsalmon AT svenmartinjørgensen shorttermstarvationatlowtemperaturepriortoharvestdoesnotimpactthehealthandacutestressresponseofadultatlanticsalmon AT gerrittimmerhaus shorttermstarvationatlowtemperaturepriortoharvestdoesnotimpactthehealthandacutestressresponseofadultatlanticsalmon AT olavbreck shorttermstarvationatlowtemperaturepriortoharvestdoesnotimpactthehealthandacutestressresponseofadultatlanticsalmon AT palaolsvik shorttermstarvationatlowtemperaturepriortoharvestdoesnotimpactthehealthandacutestressresponseofadultatlanticsalmon |