Variation in digestibility of protein and lipid among individual Atlantic salmon
quantification of the variation in ADC of protein and lipid among individuals and among repeated stripping of the same individuals A group of 60 pit tagged post smolt Atlantic salmon chosen randomly from a pool of 50 families (34 represented), with an initial body weight of 440 g, were reared in a s...
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Norwegian University of Life Sciences, Ås
2015
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ftunivmob:oai:nmbu.brage.unit.no:11250/2358984 2023-05-15T15:30:08+02:00 Variation in digestibility of protein and lipid among individual Atlantic salmon Vasquez Guzman, Mariela 2015 application/pdf http://hdl.handle.net/11250/2358984 eng eng Norwegian University of Life Sciences, Ås http://hdl.handle.net/11250/2358984 55 Individual Atlantic salmon proteins lipid apparent digestibility intraclass correlation genetic variation VDP::Agriculture and fishery disciplines: 900 Master thesis 2015 ftunivmob 2021-09-23T20:16:38Z quantification of the variation in ADC of protein and lipid among individuals and among repeated stripping of the same individuals A group of 60 pit tagged post smolt Atlantic salmon chosen randomly from a pool of 50 families (34 represented), with an initial body weight of 440 g, were reared in a single tank for 56 days. Fish weight gain was 414 g and specific growth rate 1.2% d-1 during the experimental period. Individual apparent digestibility coefficient (ADC) was determined from three faecal samples of each fish (stripping) obtained during the experiment. ADCs mean and standard deviation (SD) for the first stripping (n=57) was 90.8% (SD=1.4%) for protein and 95.0% (SD=1.1%) for lipid; for the second stripping (n=56), 90.0% (SD=1.5%) for protein and 94.8% (SD=1.1%) for lipid, and for the third stripping (n=54) 88.5% (SD=2.5%) for protein and 93.9% (SD=2.0%) for lipid. Intraclass correlations (repeatability) for ADC of lipid varied from 0.24 to 0.5 and of protein from 0.00 to 0.02. These results indicate significant genetic variation in digestibility of lipid in Atlantic salmon, but not for protein. Therefore it should be possible to obtain a favorable genetic gain for ADC of lipid, but not for ADC of protein. M-AA Master Thesis Atlantic salmon Open archive Norwegian University of Life Sciences: Brage NMBU |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
topic |
Individual Atlantic salmon proteins lipid apparent digestibility intraclass correlation genetic variation VDP::Agriculture and fishery disciplines: 900 |
spellingShingle |
Individual Atlantic salmon proteins lipid apparent digestibility intraclass correlation genetic variation VDP::Agriculture and fishery disciplines: 900 Vasquez Guzman, Mariela Variation in digestibility of protein and lipid among individual Atlantic salmon |
topic_facet |
Individual Atlantic salmon proteins lipid apparent digestibility intraclass correlation genetic variation VDP::Agriculture and fishery disciplines: 900 |
description |
quantification of the variation in ADC of protein and lipid among individuals and among repeated stripping of the same individuals A group of 60 pit tagged post smolt Atlantic salmon chosen randomly from a pool of 50 families (34 represented), with an initial body weight of 440 g, were reared in a single tank for 56 days. Fish weight gain was 414 g and specific growth rate 1.2% d-1 during the experimental period. Individual apparent digestibility coefficient (ADC) was determined from three faecal samples of each fish (stripping) obtained during the experiment. ADCs mean and standard deviation (SD) for the first stripping (n=57) was 90.8% (SD=1.4%) for protein and 95.0% (SD=1.1%) for lipid; for the second stripping (n=56), 90.0% (SD=1.5%) for protein and 94.8% (SD=1.1%) for lipid, and for the third stripping (n=54) 88.5% (SD=2.5%) for protein and 93.9% (SD=2.0%) for lipid. Intraclass correlations (repeatability) for ADC of lipid varied from 0.24 to 0.5 and of protein from 0.00 to 0.02. These results indicate significant genetic variation in digestibility of lipid in Atlantic salmon, but not for protein. Therefore it should be possible to obtain a favorable genetic gain for ADC of lipid, but not for ADC of protein. M-AA |
format |
Master Thesis |
author |
Vasquez Guzman, Mariela |
author_facet |
Vasquez Guzman, Mariela |
author_sort |
Vasquez Guzman, Mariela |
title |
Variation in digestibility of protein and lipid among individual Atlantic salmon |
title_short |
Variation in digestibility of protein and lipid among individual Atlantic salmon |
title_full |
Variation in digestibility of protein and lipid among individual Atlantic salmon |
title_fullStr |
Variation in digestibility of protein and lipid among individual Atlantic salmon |
title_full_unstemmed |
Variation in digestibility of protein and lipid among individual Atlantic salmon |
title_sort |
variation in digestibility of protein and lipid among individual atlantic salmon |
publisher |
Norwegian University of Life Sciences, Ås |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/2358984 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
55 |
op_relation |
http://hdl.handle.net/11250/2358984 |
_version_ |
1766360588056788992 |