Assessing Quality of Novel Plant Proteins for Salmonids
Approaches for the evaluation of plant protein ingredients for salmonid feeds were investigated in a series of four trials. The first trial compared the apparent digestibility coefficients (ADC) of crude protein (CP) and amino acids (AAs) of two novel products - Indian mustard protein concentrate (I...
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University of Guelph
2012
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ftunivguelph:oai:atrium.lib.uoguelph.ca:10214/3315 2024-06-23T07:51:22+00:00 Assessing Quality of Novel Plant Proteins for Salmonids Chowdhury, Mohiuddin A Kabir Bureau, Dominique P. 2012-02-06 application/pdf http://hdl.handle.net/10214/3315 en eng University of Guelph http://hdl.handle.net/10214/3315 Attribution-NonCommercial-ShareAlike 2.5 Canada http://creativecommons.org/licenses/by-nc-sa/2.5/ca/ Plant Protein Amino acid Digestibility Bioavailability Phytic acid Lignin Pellet quality Salmonids Rainbow trout Atlantic salmon Thesis 2012 ftunivguelph 2024-06-04T23:58:45Z Approaches for the evaluation of plant protein ingredients for salmonid feeds were investigated in a series of four trials. The first trial compared the apparent digestibility coefficients (ADC) of crude protein (CP) and amino acids (AAs) of two novel products - Indian mustard protein concentrate (IMC, 62% CP) and Indian mustard protein meal (IMM, 42% CP), to a commercially available soy protein concentrate (SPC, 57% CP) for two salmonid species, rainbow trout and Atlantic salmon. The second trial involved assessment of relative bioavailability of arginine (Arg) from IMC, IMM and SPC compared to that of a crystalline Arg (L-Arg) in rainbow trout using slope-ratio assay. In the third trial, the effects of phytic acid (PA) and lignin on nutrient utilization and partitioning in rainbow trout were assessed. Finally, a series of experiments was conducted in the final trial to establish the evaluation criteria for pellet quality assessment. The ADC of CP and most AAs in IMC and IMM were high (>90%). Differences in the ADCs of some AAs can be attributed to the high PA intake by fish fed 30%-IMC diet. The significantly higher (P<0.05) bioavailability of Arg from IMC (123 to 187%) and IMM (116 to 211%) relative to that of L-Arg, as determined by various regression approaches, reaffirmed the findings of the first trial that these ingredients are of excellent protein quality and can readily be used in compounded fish feeds. It can be inferred from the lack of effects of PA, lignin or PA plus lignin on most indices of physiology, performance, and nutrient utilization in the pair-fed fish, that like any other animal, controls feed intake when in the presence of one or more dietary ANF. It was also shown in the pellet quality assessment trial that minor changes in dietary composition can significantly alter physical properties of aquaculture feed. This study highlighted the importance of a comprehensive assessment for the effective evaluation of the nutritive value of plant protein ingredients for use in aquaculture ... Thesis Atlantic salmon University of Guelph: DSpace digital archive Indian |
institution |
Open Polar |
collection |
University of Guelph: DSpace digital archive |
op_collection_id |
ftunivguelph |
language |
English |
topic |
Plant Protein Amino acid Digestibility Bioavailability Phytic acid Lignin Pellet quality Salmonids Rainbow trout Atlantic salmon |
spellingShingle |
Plant Protein Amino acid Digestibility Bioavailability Phytic acid Lignin Pellet quality Salmonids Rainbow trout Atlantic salmon Chowdhury, Mohiuddin A Kabir Assessing Quality of Novel Plant Proteins for Salmonids |
topic_facet |
Plant Protein Amino acid Digestibility Bioavailability Phytic acid Lignin Pellet quality Salmonids Rainbow trout Atlantic salmon |
description |
Approaches for the evaluation of plant protein ingredients for salmonid feeds were investigated in a series of four trials. The first trial compared the apparent digestibility coefficients (ADC) of crude protein (CP) and amino acids (AAs) of two novel products - Indian mustard protein concentrate (IMC, 62% CP) and Indian mustard protein meal (IMM, 42% CP), to a commercially available soy protein concentrate (SPC, 57% CP) for two salmonid species, rainbow trout and Atlantic salmon. The second trial involved assessment of relative bioavailability of arginine (Arg) from IMC, IMM and SPC compared to that of a crystalline Arg (L-Arg) in rainbow trout using slope-ratio assay. In the third trial, the effects of phytic acid (PA) and lignin on nutrient utilization and partitioning in rainbow trout were assessed. Finally, a series of experiments was conducted in the final trial to establish the evaluation criteria for pellet quality assessment. The ADC of CP and most AAs in IMC and IMM were high (>90%). Differences in the ADCs of some AAs can be attributed to the high PA intake by fish fed 30%-IMC diet. The significantly higher (P<0.05) bioavailability of Arg from IMC (123 to 187%) and IMM (116 to 211%) relative to that of L-Arg, as determined by various regression approaches, reaffirmed the findings of the first trial that these ingredients are of excellent protein quality and can readily be used in compounded fish feeds. It can be inferred from the lack of effects of PA, lignin or PA plus lignin on most indices of physiology, performance, and nutrient utilization in the pair-fed fish, that like any other animal, controls feed intake when in the presence of one or more dietary ANF. It was also shown in the pellet quality assessment trial that minor changes in dietary composition can significantly alter physical properties of aquaculture feed. This study highlighted the importance of a comprehensive assessment for the effective evaluation of the nutritive value of plant protein ingredients for use in aquaculture ... |
author2 |
Bureau, Dominique P. |
format |
Thesis |
author |
Chowdhury, Mohiuddin A Kabir |
author_facet |
Chowdhury, Mohiuddin A Kabir |
author_sort |
Chowdhury, Mohiuddin A Kabir |
title |
Assessing Quality of Novel Plant Proteins for Salmonids |
title_short |
Assessing Quality of Novel Plant Proteins for Salmonids |
title_full |
Assessing Quality of Novel Plant Proteins for Salmonids |
title_fullStr |
Assessing Quality of Novel Plant Proteins for Salmonids |
title_full_unstemmed |
Assessing Quality of Novel Plant Proteins for Salmonids |
title_sort |
assessing quality of novel plant proteins for salmonids |
publisher |
University of Guelph |
publishDate |
2012 |
url |
http://hdl.handle.net/10214/3315 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
http://hdl.handle.net/10214/3315 |
op_rights |
Attribution-NonCommercial-ShareAlike 2.5 Canada http://creativecommons.org/licenses/by-nc-sa/2.5/ca/ |
_version_ |
1802642450226872320 |