Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar
In order to compare the threonine (Thr) requirement and retention efficiency of rainbow trout and Atlantic salmon, we conducted a feeding experiment with 11 diets. For both species, we studied the effects of increasing dietary L-Thr: 5, 6.25, 7.5, 8.75, 10, 11.25, 12.5, 13.75, 15, 16.25, 21.75 g/kg...
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Online Access: | http://hdl.handle.net/2078.1/36804 https://doi.org/10.1016/j.aquaculture.2007.11.031 |
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ftunivlouvain:oai:dial.uclouvain.be:boreal:36804 2024-05-12T08:01:11+00:00 Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar Bodin, Noelie Mambrini, Muriel Wauters, Jean-Baptiste Abboudi, Tarik Ooghe, Wilfried Le Boulengé, Éric Larondelle, Yvan Rollin, Xavier UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire 2008 http://hdl.handle.net/2078.1/36804 https://doi.org/10.1016/j.aquaculture.2007.11.031 eng eng Elsevier Science Bv boreal:36804 http://hdl.handle.net/2078.1/36804 doi:10.1016/j.aquaculture.2007.11.031 urn:ISSN:0044-8486 urn:EISSN:1873-5622 info:eu-repo/semantics/restrictedAccess Aquaculture, Vol. 274, no. 2-4, p. 353-365 (2008) threonine requirement threonine retention efficiency threonine gain rainbow trout Atlantic salmon fry info:eu-repo/semantics/article 2008 ftunivlouvain https://doi.org/10.1016/j.aquaculture.2007.11.031 2024-04-17T17:33:35Z In order to compare the threonine (Thr) requirement and retention efficiency of rainbow trout and Atlantic salmon, we conducted a feeding experiment with 11 diets. For both species, we studied the effects of increasing dietary L-Thr: 5, 6.25, 7.5, 8.75, 10, 11.25, 12.5, 13.75, 15, 16.25, 21.75 g/kg dry matter (DM), on protein gain, Thr gain and Thr retention efficiency. All diets were isonitrogenous (40% DM) and isoenergetic (22.4 MJ gross energy/kg DM). To maintain the same nitrogen (N) level, the decrease of Thr in the diets was compensated by an increase of a mixture of dispensable amino acids. The rainbow trout and Atlantic salmon fry mean initial body weight was of 1.8 and 0.8 g, respectively, and they were fed for 24 and 36 days, respectively. The daily growth coefficient (% day(-1)) was much higher for rainbow trout fry (2.5% day 1) than for Atlantic salmon fry (1.1% day 1). For the Thr deficient diets (Thr levels <= 10 g/kg DM), feed efficiency and protein productive value were higher in trout than in salmon fry, and they were mainly related to differences in voluntary feed intake. The Thr requirements for optimal Thr accretion (+/- SE) determined by the broken-line model were equivalent among species: 10.58 +/- 0.56 and 10.66 +/- 0.36 g/kg DM or 2.6 +/- 0.1 and 2.7 +/- 0.1 g Thr/16 g N (P=0.4) for trout and salmon fly, respectively. At marginal dietary Thr concentrations (<= 10 g/kg DM), Thr accretion (mg/kg(0.75) per day) was a linear function of Thr intake (mg/kg(0.75) per day) for salmon and trout, but slopes were not significantly different (P=0.19). The slope of the single line estimation (r(2) =0.94) gave an estimate of the Thr retention efficiency above maintenance (SE) for both species (0.79 +/- 0.04). Additionally, the relationship between protein gain and Thr intake showed that trout and salmon required an intake of 70 and 62 mg of Thr, respectively, to deposit 1 g of body protein (P=0.21). Application of a simple factorial method to our data gave the same relative Thr requirement value ... Article in Journal/Newspaper Atlantic salmon Salmo salar DIAL@UCLouvain (Université catholique de Louvain) Aquaculture 274 2-4 353 365 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
topic |
threonine requirement threonine retention efficiency threonine gain rainbow trout Atlantic salmon fry |
spellingShingle |
threonine requirement threonine retention efficiency threonine gain rainbow trout Atlantic salmon fry Bodin, Noelie Mambrini, Muriel Wauters, Jean-Baptiste Abboudi, Tarik Ooghe, Wilfried Le Boulengé, Éric Larondelle, Yvan Rollin, Xavier Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
topic_facet |
threonine requirement threonine retention efficiency threonine gain rainbow trout Atlantic salmon fry |
description |
In order to compare the threonine (Thr) requirement and retention efficiency of rainbow trout and Atlantic salmon, we conducted a feeding experiment with 11 diets. For both species, we studied the effects of increasing dietary L-Thr: 5, 6.25, 7.5, 8.75, 10, 11.25, 12.5, 13.75, 15, 16.25, 21.75 g/kg dry matter (DM), on protein gain, Thr gain and Thr retention efficiency. All diets were isonitrogenous (40% DM) and isoenergetic (22.4 MJ gross energy/kg DM). To maintain the same nitrogen (N) level, the decrease of Thr in the diets was compensated by an increase of a mixture of dispensable amino acids. The rainbow trout and Atlantic salmon fry mean initial body weight was of 1.8 and 0.8 g, respectively, and they were fed for 24 and 36 days, respectively. The daily growth coefficient (% day(-1)) was much higher for rainbow trout fry (2.5% day 1) than for Atlantic salmon fry (1.1% day 1). For the Thr deficient diets (Thr levels <= 10 g/kg DM), feed efficiency and protein productive value were higher in trout than in salmon fry, and they were mainly related to differences in voluntary feed intake. The Thr requirements for optimal Thr accretion (+/- SE) determined by the broken-line model were equivalent among species: 10.58 +/- 0.56 and 10.66 +/- 0.36 g/kg DM or 2.6 +/- 0.1 and 2.7 +/- 0.1 g Thr/16 g N (P=0.4) for trout and salmon fly, respectively. At marginal dietary Thr concentrations (<= 10 g/kg DM), Thr accretion (mg/kg(0.75) per day) was a linear function of Thr intake (mg/kg(0.75) per day) for salmon and trout, but slopes were not significantly different (P=0.19). The slope of the single line estimation (r(2) =0.94) gave an estimate of the Thr retention efficiency above maintenance (SE) for both species (0.79 +/- 0.04). Additionally, the relationship between protein gain and Thr intake showed that trout and salmon required an intake of 70 and 62 mg of Thr, respectively, to deposit 1 g of body protein (P=0.21). Application of a simple factorial method to our data gave the same relative Thr requirement value ... |
author2 |
UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire |
format |
Article in Journal/Newspaper |
author |
Bodin, Noelie Mambrini, Muriel Wauters, Jean-Baptiste Abboudi, Tarik Ooghe, Wilfried Le Boulengé, Éric Larondelle, Yvan Rollin, Xavier |
author_facet |
Bodin, Noelie Mambrini, Muriel Wauters, Jean-Baptiste Abboudi, Tarik Ooghe, Wilfried Le Boulengé, Éric Larondelle, Yvan Rollin, Xavier |
author_sort |
Bodin, Noelie |
title |
Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
title_short |
Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
title_full |
Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
title_fullStr |
Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
title_full_unstemmed |
Threonine requirements for rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar) at the fry stage are similar |
title_sort |
threonine requirements for rainbow trout (oncorhynchus mykiss) and atlantic salmon (salmo salar) at the fry stage are similar |
publisher |
Elsevier Science Bv |
publishDate |
2008 |
url |
http://hdl.handle.net/2078.1/36804 https://doi.org/10.1016/j.aquaculture.2007.11.031 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aquaculture, Vol. 274, no. 2-4, p. 353-365 (2008) |
op_relation |
boreal:36804 http://hdl.handle.net/2078.1/36804 doi:10.1016/j.aquaculture.2007.11.031 urn:ISSN:0044-8486 urn:EISSN:1873-5622 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.aquaculture.2007.11.031 |
container_title |
Aquaculture |
container_volume |
274 |
container_issue |
2-4 |
container_start_page |
353 |
op_container_end_page |
365 |
_version_ |
1798843301179162624 |