Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance
Optimal rearing temperatures for European lobster Homarus gammarus in aquaculture differ from those prevalent in their aquatic ecosystems and acclimating juveniles to the prevailing temperatures before release may aid in the success of re-stocking programs. As the dietary nutritional composition is...
Published in: | Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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ftdtupubl:oai:pure.atira.dk:publications/590580d2-6272-4f0f-b864-899b3eb0dc54 2024-09-15T17:40:19+00:00 Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance Goncalves, Renata Lund, Ivar Gesto, Manuel 2021 application/pdf https://orbit.dtu.dk/en/publications/590580d2-6272-4f0f-b864-899b3eb0dc54 https://doi.org/10.1016/j.cbpa.2021.111019 https://backend.orbit.dtu.dk/ws/files/247609851/Goncalves_et_al_2021_CBPA_preprint.pdf https://backend.orbit.dtu.dk/ws/files/247755275/1_s2.0_S1095643321001276_main.pdf eng eng https://orbit.dtu.dk/en/publications/590580d2-6272-4f0f-b864-899b3eb0dc54 info:eu-repo/semantics/openAccess Goncalves , R , Lund , I & Gesto , M 2021 , ' Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance ' , Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology , vol. 260 , 111019 . https://doi.org/10.1016/j.cbpa.2021.111019 Extruded feeds Carbohydrate Protein Glycogen Glucose article 2021 ftdtupubl https://doi.org/10.1016/j.cbpa.2021.111019 2024-08-05T23:48:29Z Optimal rearing temperatures for European lobster Homarus gammarus in aquaculture differ from those prevalent in their aquatic ecosystems and acclimating juveniles to the prevailing temperatures before release may aid in the success of re-stocking programs. As the dietary nutritional composition is important for optimal performance of H. gammarus , in this study we aimed to investigate whether juvenile growth and energy metabolism responses to temperature variation could be modulated by the diet. Prior to the trial start, the juveniles were divided into two groups. One was maintained at 19 °C and the other gradually adapted to 13 °C. From this point and for a 24-day period, juveniles (~ 100 mg) within each temperature group were assigned one of two experimental diets: a carbohydrate-rich (HC) or a protein-rich (HP) extruded feed. Antarctic krill (AK) was used as a control diet within each temperature group. Feed intake, growth, glycogen, glucose, lactate, and protein concentrations of H. gammarus in each group were evaluated. Regardless the dietary treatment, feed intake, cephalothorax protein and glucose, and abdominal glycogen and glucose levels decreased at colder temperature. The effect of lower temperature on growth (SGR and moulting rate declines) and energy metabolism (reduction on cephalothorax glycogen and protein) was more severe in HC-fed lobsters. Results showed that the impact of lower temperature on juvenile H. gammarus can be modulated by diet highlighting the importance of designing optimized diets not only for growth and feed efficiency but also for resilience to environmental variation. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill European lobster Homarus gammarus Technical University of Denmark: DTU Orbit Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 260 111019 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
Extruded feeds Carbohydrate Protein Glycogen Glucose |
spellingShingle |
Extruded feeds Carbohydrate Protein Glycogen Glucose Goncalves, Renata Lund, Ivar Gesto, Manuel Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
topic_facet |
Extruded feeds Carbohydrate Protein Glycogen Glucose |
description |
Optimal rearing temperatures for European lobster Homarus gammarus in aquaculture differ from those prevalent in their aquatic ecosystems and acclimating juveniles to the prevailing temperatures before release may aid in the success of re-stocking programs. As the dietary nutritional composition is important for optimal performance of H. gammarus , in this study we aimed to investigate whether juvenile growth and energy metabolism responses to temperature variation could be modulated by the diet. Prior to the trial start, the juveniles were divided into two groups. One was maintained at 19 °C and the other gradually adapted to 13 °C. From this point and for a 24-day period, juveniles (~ 100 mg) within each temperature group were assigned one of two experimental diets: a carbohydrate-rich (HC) or a protein-rich (HP) extruded feed. Antarctic krill (AK) was used as a control diet within each temperature group. Feed intake, growth, glycogen, glucose, lactate, and protein concentrations of H. gammarus in each group were evaluated. Regardless the dietary treatment, feed intake, cephalothorax protein and glucose, and abdominal glycogen and glucose levels decreased at colder temperature. The effect of lower temperature on growth (SGR and moulting rate declines) and energy metabolism (reduction on cephalothorax glycogen and protein) was more severe in HC-fed lobsters. Results showed that the impact of lower temperature on juvenile H. gammarus can be modulated by diet highlighting the importance of designing optimized diets not only for growth and feed efficiency but also for resilience to environmental variation. |
format |
Article in Journal/Newspaper |
author |
Goncalves, Renata Lund, Ivar Gesto, Manuel |
author_facet |
Goncalves, Renata Lund, Ivar Gesto, Manuel |
author_sort |
Goncalves, Renata |
title |
Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
title_short |
Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
title_full |
Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
title_fullStr |
Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
title_full_unstemmed |
Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance |
title_sort |
interactions of temperature and dietary composition on juvenile european lobster ( homarus gammarus, l. ) energy metabolism and performance |
publishDate |
2021 |
url |
https://orbit.dtu.dk/en/publications/590580d2-6272-4f0f-b864-899b3eb0dc54 https://doi.org/10.1016/j.cbpa.2021.111019 https://backend.orbit.dtu.dk/ws/files/247609851/Goncalves_et_al_2021_CBPA_preprint.pdf https://backend.orbit.dtu.dk/ws/files/247755275/1_s2.0_S1095643321001276_main.pdf |
genre |
Antarc* Antarctic Antarctic Krill European lobster Homarus gammarus |
genre_facet |
Antarc* Antarctic Antarctic Krill European lobster Homarus gammarus |
op_source |
Goncalves , R , Lund , I & Gesto , M 2021 , ' Interactions of temperature and dietary composition on juvenile European lobster ( Homarus gammarus, L. ) energy metabolism and performance ' , Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology , vol. 260 , 111019 . https://doi.org/10.1016/j.cbpa.2021.111019 |
op_relation |
https://orbit.dtu.dk/en/publications/590580d2-6272-4f0f-b864-899b3eb0dc54 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.cbpa.2021.111019 |
container_title |
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology |
container_volume |
260 |
container_start_page |
111019 |
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1810486324154597376 |