Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta)
Farmed ballan wrasse (Labrus bergylta) is an efficient cleaner fish used for non-medicinal delicing of Atlantic salmon in sea cages replacing to an increasing degree wild wrasse due to considerations for biodiversity and risk of overfishing local wrasse populations. Farming of ballan wrasse has been...
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Online Access: | https://hdl.handle.net/11250/2761787 https://doi.org/10.1016/j.anifeedsci.2021.114830 |
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ftnofima:oai:nofima.brage.unit.no:11250/2761787 2023-05-15T15:32:38+02:00 Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) Kousoulaki, Katerina Grøtan, Espen Kortner, Trond M. Berge, Gerd Marit Haustveit, Gunhild Krogdahl, Åshild Nygaard, Halvor Sæle, Øystein Chikwati, Elvis Mashingaidze Lein, Ingrid 2021 application/pdf https://hdl.handle.net/11250/2761787 https://doi.org/10.1016/j.anifeedsci.2021.114830 eng eng Fiskeri- og havbruksnæringens forskningsfinansiering: 901331 Animal Feed Science and Technology. 2021, 274 . urn:issn:0377-8401 https://hdl.handle.net/11250/2761787 https://doi.org/10.1016/j.anifeedsci.2021.114830 cristin:1907562 19 274 Animal Feed Science and Technology Peer reviewed Journal article 2021 ftnofima https://doi.org/10.1016/j.anifeedsci.2021.114830 2022-11-18T06:51:03Z Farmed ballan wrasse (Labrus bergylta) is an efficient cleaner fish used for non-medicinal delicing of Atlantic salmon in sea cages replacing to an increasing degree wild wrasse due to considerations for biodiversity and risk of overfishing local wrasse populations. Farming of ballan wrasse has been hampered by low growth rates, high prevalence of skeletal deformities and other welfare related pathologies. In this study we investigated how diets identical in composition but differing in their technical characteristics, by being prepared using different feed production technologies, affect fish performance, mineralization, bone development and gut health of the ballan wrasse larvae and juveniles. The different production technologies include the commonly used ‘high temperature’ extrusion, cold extrusion, and agglomeration, resulting in feed pellets with distinctive physicochemical properties. The results revealed that prolonged feeding periods with extruded pellets during ballan wrasse larvae weaning result in low body mineralization and the development of severe skeletal deformities. In juvenile ballan wrasse, the extruded pellet treatment resulted in higher mortality rates, fish with larger livers, indication for increased serum TAG and cholesterol in a similar manner, and increased activity of the digestive enzymes LAP and maltase, most probably as a compensatory mechanism to the assumed reduced availability of protein and carbohydrates of extruded pellets for this fish species. Smaller dietary effects were identified in terms of intestinal morphology and gene transcription rates. publishedVersion Article in Journal/Newspaper Atlantic salmon Nofima Knowledge Archive (Brage) Ballan ENVELOPE(12.203,12.203,65.945,65.945) Animal Feed Science and Technology 274 114830 |
institution |
Open Polar |
collection |
Nofima Knowledge Archive (Brage) |
op_collection_id |
ftnofima |
language |
English |
description |
Farmed ballan wrasse (Labrus bergylta) is an efficient cleaner fish used for non-medicinal delicing of Atlantic salmon in sea cages replacing to an increasing degree wild wrasse due to considerations for biodiversity and risk of overfishing local wrasse populations. Farming of ballan wrasse has been hampered by low growth rates, high prevalence of skeletal deformities and other welfare related pathologies. In this study we investigated how diets identical in composition but differing in their technical characteristics, by being prepared using different feed production technologies, affect fish performance, mineralization, bone development and gut health of the ballan wrasse larvae and juveniles. The different production technologies include the commonly used ‘high temperature’ extrusion, cold extrusion, and agglomeration, resulting in feed pellets with distinctive physicochemical properties. The results revealed that prolonged feeding periods with extruded pellets during ballan wrasse larvae weaning result in low body mineralization and the development of severe skeletal deformities. In juvenile ballan wrasse, the extruded pellet treatment resulted in higher mortality rates, fish with larger livers, indication for increased serum TAG and cholesterol in a similar manner, and increased activity of the digestive enzymes LAP and maltase, most probably as a compensatory mechanism to the assumed reduced availability of protein and carbohydrates of extruded pellets for this fish species. Smaller dietary effects were identified in terms of intestinal morphology and gene transcription rates. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Kousoulaki, Katerina Grøtan, Espen Kortner, Trond M. Berge, Gerd Marit Haustveit, Gunhild Krogdahl, Åshild Nygaard, Halvor Sæle, Øystein Chikwati, Elvis Mashingaidze Lein, Ingrid |
spellingShingle |
Kousoulaki, Katerina Grøtan, Espen Kortner, Trond M. Berge, Gerd Marit Haustveit, Gunhild Krogdahl, Åshild Nygaard, Halvor Sæle, Øystein Chikwati, Elvis Mashingaidze Lein, Ingrid Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
author_facet |
Kousoulaki, Katerina Grøtan, Espen Kortner, Trond M. Berge, Gerd Marit Haustveit, Gunhild Krogdahl, Åshild Nygaard, Halvor Sæle, Øystein Chikwati, Elvis Mashingaidze Lein, Ingrid |
author_sort |
Kousoulaki, Katerina |
title |
Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
title_short |
Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
title_full |
Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
title_fullStr |
Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
title_full_unstemmed |
Technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (Labrus bergylta) |
title_sort |
technical feed quality influences health, digestion patterns, body mineralization and bone development in farming of the stomachless cleaner fish ballan wrasse (labrus bergylta) |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2761787 https://doi.org/10.1016/j.anifeedsci.2021.114830 |
long_lat |
ENVELOPE(12.203,12.203,65.945,65.945) |
geographic |
Ballan |
geographic_facet |
Ballan |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
19 274 Animal Feed Science and Technology |
op_relation |
Fiskeri- og havbruksnæringens forskningsfinansiering: 901331 Animal Feed Science and Technology. 2021, 274 . urn:issn:0377-8401 https://hdl.handle.net/11250/2761787 https://doi.org/10.1016/j.anifeedsci.2021.114830 cristin:1907562 |
op_doi |
https://doi.org/10.1016/j.anifeedsci.2021.114830 |
container_title |
Animal Feed Science and Technology |
container_volume |
274 |
container_start_page |
114830 |
_version_ |
1766363132747317248 |