Protein and arginine requirements for maintenance and nitrogen gain in four teleosts
Besides being an indispensable amino acid for protein synthesis, arginine (Arg) is also involved in a number of other physiological functions. Available data on the quantitative requirement for Arg in different teleosts appear to show much variability. So far, there are very limited data on the main...
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Online Access: | http://hdl.handle.net/11390/877701 https://doi.org/10.1079/BJN2002564 |
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ftunivudineiris:oai:air.uniud.it:11390/877701 2023-07-30T04:07:21+02:00 Protein and arginine requirements for maintenance and nitrogen gain in four teleosts FOURNIER V. GOUILLOU COUSTANS M. F METALLILLER R VACHOT C OLIVA TELES A KAUSHIK S. TULLI, Francesca TIBALDI, Emilio Fournier, V. GOUILLOU COUSTANS M. F. Metalliller, R Vachot, C Tulli, Francesca OLIVA TELES, A Tibaldi, Emilio Kaushik, S. 2002 STAMPA http://hdl.handle.net/11390/877701 https://doi.org/10.1079/BJN2002564 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000175540000007 volume:87 firstpage:459 lastpage:469 numberofpages:11 journal:BRITISH JOURNAL OF NUTRITION http://hdl.handle.net/11390/877701 doi:10.1079/BJN2002564 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0036262121 info:eu-repo/semantics/closedAccess teleost protein requirement arginine requirement maintenance growth info:eu-repo/semantics/article 2002 ftunivudineiris https://doi.org/10.1079/BJN2002564 2023-07-18T20:09:52Z Besides being an indispensable amino acid for protein synthesis, arginine (Arg) is also involved in a number of other physiological functions. Available data on the quantitative requirement for Arg in different teleosts appear to show much variability. So far, there are very limited data on the maintenance requirements of indispensable amino acids (IAA) in fish. In the present study, we compared N and Arg requirements for maintenance and growth of four finfish species: rainbow trout (Oncorhynchus mykiss ), turbot (Psetta maxima ), gilthead seabream (Sparus aurata ) and European seabass (Dicentrarchus labrax ). Groups of fish having an initial body weight close to 5–7 g were fed semi-purified diets containing graded levels of N (0 to 8% DM) and Arg (0 to 3% DM) over 4 to 6 weeks. For each species, N and Arg requirements for maintenance and for growth were calculated regressing daily N gain against daily N or Arg intakes. N requirement for maintenance was estimated to be 37·8, 127·3, 84·7 and 45·1 mg/kg metabolic body weight per d and 2·3, 2·2, 2·6 and 2·5 g for 1 gN accretion, in rainbow trout, turbot, gilthead seabream and European seabass respectively. The four species studied appear to have very low or no dietary Arg requirements for maintenance. Arg requirement for gN accretion was calculated to be 0·86 g in rainbow trout and between 1·04–1·11 g in the three marine species. Turbot required more N for maintenance than the other three species, possibly explaining its reputedly high overall dietary protein requirement. Data suggest a small but sufficient endogenous Arg synthesis to maintain whole body N balance and differences between freshwater and marine species as regards Arg requirement. It is worth verifying this tendency with other IAA. Article in Journal/Newspaper Turbot Università degli Studi di Udine: CINECA IRIS British Journal of Nutrition 87 5 459 469 |
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Open Polar |
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Università degli Studi di Udine: CINECA IRIS |
op_collection_id |
ftunivudineiris |
language |
English |
topic |
teleost protein requirement arginine requirement maintenance growth |
spellingShingle |
teleost protein requirement arginine requirement maintenance growth FOURNIER V. GOUILLOU COUSTANS M. F METALLILLER R VACHOT C OLIVA TELES A KAUSHIK S. TULLI, Francesca TIBALDI, Emilio Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
topic_facet |
teleost protein requirement arginine requirement maintenance growth |
description |
Besides being an indispensable amino acid for protein synthesis, arginine (Arg) is also involved in a number of other physiological functions. Available data on the quantitative requirement for Arg in different teleosts appear to show much variability. So far, there are very limited data on the maintenance requirements of indispensable amino acids (IAA) in fish. In the present study, we compared N and Arg requirements for maintenance and growth of four finfish species: rainbow trout (Oncorhynchus mykiss ), turbot (Psetta maxima ), gilthead seabream (Sparus aurata ) and European seabass (Dicentrarchus labrax ). Groups of fish having an initial body weight close to 5–7 g were fed semi-purified diets containing graded levels of N (0 to 8% DM) and Arg (0 to 3% DM) over 4 to 6 weeks. For each species, N and Arg requirements for maintenance and for growth were calculated regressing daily N gain against daily N or Arg intakes. N requirement for maintenance was estimated to be 37·8, 127·3, 84·7 and 45·1 mg/kg metabolic body weight per d and 2·3, 2·2, 2·6 and 2·5 g for 1 gN accretion, in rainbow trout, turbot, gilthead seabream and European seabass respectively. The four species studied appear to have very low or no dietary Arg requirements for maintenance. Arg requirement for gN accretion was calculated to be 0·86 g in rainbow trout and between 1·04–1·11 g in the three marine species. Turbot required more N for maintenance than the other three species, possibly explaining its reputedly high overall dietary protein requirement. Data suggest a small but sufficient endogenous Arg synthesis to maintain whole body N balance and differences between freshwater and marine species as regards Arg requirement. It is worth verifying this tendency with other IAA. |
author2 |
Fournier, V. GOUILLOU COUSTANS M. F. Metalliller, R Vachot, C Tulli, Francesca OLIVA TELES, A Tibaldi, Emilio Kaushik, S. |
format |
Article in Journal/Newspaper |
author |
FOURNIER V. GOUILLOU COUSTANS M. F METALLILLER R VACHOT C OLIVA TELES A KAUSHIK S. TULLI, Francesca TIBALDI, Emilio |
author_facet |
FOURNIER V. GOUILLOU COUSTANS M. F METALLILLER R VACHOT C OLIVA TELES A KAUSHIK S. TULLI, Francesca TIBALDI, Emilio |
author_sort |
FOURNIER V. GOUILLOU COUSTANS M. F |
title |
Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
title_short |
Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
title_full |
Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
title_fullStr |
Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
title_full_unstemmed |
Protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
title_sort |
protein and arginine requirements for maintenance and nitrogen gain in four teleosts |
publishDate |
2002 |
url |
http://hdl.handle.net/11390/877701 https://doi.org/10.1079/BJN2002564 |
genre |
Turbot |
genre_facet |
Turbot |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000175540000007 volume:87 firstpage:459 lastpage:469 numberofpages:11 journal:BRITISH JOURNAL OF NUTRITION http://hdl.handle.net/11390/877701 doi:10.1079/BJN2002564 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0036262121 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1079/BJN2002564 |
container_title |
British Journal of Nutrition |
container_volume |
87 |
container_issue |
5 |
container_start_page |
459 |
op_container_end_page |
469 |
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1772820626807980032 |