Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels
Chlorella vulgaris, one of the most studied microalga for industrial applications, has never before been assessed as a potential ‘low-trophic’ ingredient for Atlantic salmon (Salmo salar L.). The effects on apparent nutrient digestibility coefficients (ADCs) by dietary inclusion of whole-cell or cel...
Published in: | Aquaculture |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2017
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Online Access: | https://doi.org/10.1016/j.aquaculture.2017.08.018 https://nrc-publications.canada.ca/eng/view/accepted/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/eng/view/object/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/fra/voir/objet/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:23002224 2023-05-15T15:31:30+02:00 Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels Tibbetts, Sean M. Mann, Jason Dumas, André 2017-08-19 text https://doi.org/10.1016/j.aquaculture.2017.08.018 https://nrc-publications.canada.ca/eng/view/accepted/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/eng/view/object/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/fra/voir/objet/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 eng eng Elsevier issn:0044-8486 Aquaculture, Volume: 481, Publication date: 2017-08-19, Pages: 25–39 doi:10.1016/j.aquaculture.2017.08.018 Chlorella cell-rupture digestibility microalgae salmon article 2017 ftnrccanada https://doi.org/10.1016/j.aquaculture.2017.08.018 2021-09-01T06:33:09Z Chlorella vulgaris, one of the most studied microalga for industrial applications, has never before been assessed as a potential ‘low-trophic’ ingredient for Atlantic salmon (Salmo salar L.). The effects on apparent nutrient digestibility coefficients (ADCs) by dietary inclusion of whole-cell or cell-ruptured C. vulgaris meals at five levels were determined. Integrity of nutrients, energy, essential amino acids (EAAs) and fatty acids were well-preserved after cell-rupture processing. Based on microscopy and protein solubility, two Microfluidizer® passes were sufficient for complete cell-rupture as no improvement in solubility (P = 0.998) was achieved with a third pass. Whole-cell C. vulgaris meal reduced ADCs for dry matter, protein, lipid and energy at inclusion as low as 6–12% (P ≤ 0.035), whereas carbohydrate ADC was not affected up to 24% (P ≥ 0.980) and was significantly improved at 30% (P = 0.028). Similarly, starch ADC was not affected by inclusion of whole-cell C. vulgaris meal at any level (P = 0.256). Inclusion of cell-ruptured C. vulgaris meal did not affect ADCs for dry matter when included up to 30% (P ≥ 0.900), protein up to 24% (P ≥ 0.092) or lipid up to 18% (P ≥ 0.124). Energy ADC was not affected up to 12% (P ≥ 0.530) but reduced at higher levels (P ≤ 0.009). Inclusion of cell-ruptured C. vulgaris meal at all levels improved carbohydrate ADC (P ≤ 0.002), due to increased starch digestibility. In fact, starch ADCs of diets containing 18–30% was significantly higher than that of the algae-free control diet (P ≤ 0.009). Similarly, phosphorous ADC was higher in diets containing 18–30% C. vulgaris meals than the algae-free control diet. Dietary ADCs were not affected by moderate inclusion (up to 18%) of whole-cell C. vulgaris meal for most EAAs (P ≥ 0.116), while ADCs for leucine and phenylalanine were reduced when over 12%. Dietary ADCs were not affected by high inclusion (24–30%) of cell-ruptured C. vulgaris meal for any EAA (P ≥ 0.076) and tryptophan and lysine were confirmed as the most limiting EAAs in C. vulgaris meals for Atlantic salmon. Reduced energy digestibility of diets containing C. vulgaris meals was associated with significantly lower ADCs for palmitic, oleic, linoleic and linolenic acids with whole-cell C. vulgaris meal at > 6–12% (P ≤ 0.022) and palmitic and oleic acids with cell-ruptured C. vulgaris meal at > 12–18%. Nevertheless, inclusion of either C. vulgaris meal up to 30% did not affect dietary ADCs for palmitoleic acid, eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA) (P ≥ 0.126). Single ingredient ADCs of nutrients, energy, EAAs and major fatty acids are reported for the first time for juvenile Atlantic salmon fed diets containing whole-cell and cell-ruptured C. vulgaris meals. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Atlantic salmon Salmo salar National Research Council Canada: NRC Publications Archive Aquaculture 481 25 39 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
topic |
Chlorella cell-rupture digestibility microalgae salmon |
spellingShingle |
Chlorella cell-rupture digestibility microalgae salmon Tibbetts, Sean M. Mann, Jason Dumas, André Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
topic_facet |
Chlorella cell-rupture digestibility microalgae salmon |
description |
Chlorella vulgaris, one of the most studied microalga for industrial applications, has never before been assessed as a potential ‘low-trophic’ ingredient for Atlantic salmon (Salmo salar L.). The effects on apparent nutrient digestibility coefficients (ADCs) by dietary inclusion of whole-cell or cell-ruptured C. vulgaris meals at five levels were determined. Integrity of nutrients, energy, essential amino acids (EAAs) and fatty acids were well-preserved after cell-rupture processing. Based on microscopy and protein solubility, two Microfluidizer® passes were sufficient for complete cell-rupture as no improvement in solubility (P = 0.998) was achieved with a third pass. Whole-cell C. vulgaris meal reduced ADCs for dry matter, protein, lipid and energy at inclusion as low as 6–12% (P ≤ 0.035), whereas carbohydrate ADC was not affected up to 24% (P ≥ 0.980) and was significantly improved at 30% (P = 0.028). Similarly, starch ADC was not affected by inclusion of whole-cell C. vulgaris meal at any level (P = 0.256). Inclusion of cell-ruptured C. vulgaris meal did not affect ADCs for dry matter when included up to 30% (P ≥ 0.900), protein up to 24% (P ≥ 0.092) or lipid up to 18% (P ≥ 0.124). Energy ADC was not affected up to 12% (P ≥ 0.530) but reduced at higher levels (P ≤ 0.009). Inclusion of cell-ruptured C. vulgaris meal at all levels improved carbohydrate ADC (P ≤ 0.002), due to increased starch digestibility. In fact, starch ADCs of diets containing 18–30% was significantly higher than that of the algae-free control diet (P ≤ 0.009). Similarly, phosphorous ADC was higher in diets containing 18–30% C. vulgaris meals than the algae-free control diet. Dietary ADCs were not affected by moderate inclusion (up to 18%) of whole-cell C. vulgaris meal for most EAAs (P ≥ 0.116), while ADCs for leucine and phenylalanine were reduced when over 12%. Dietary ADCs were not affected by high inclusion (24–30%) of cell-ruptured C. vulgaris meal for any EAA (P ≥ 0.076) and tryptophan and lysine were confirmed as the most limiting EAAs in C. vulgaris meals for Atlantic salmon. Reduced energy digestibility of diets containing C. vulgaris meals was associated with significantly lower ADCs for palmitic, oleic, linoleic and linolenic acids with whole-cell C. vulgaris meal at > 6–12% (P ≤ 0.022) and palmitic and oleic acids with cell-ruptured C. vulgaris meal at > 12–18%. Nevertheless, inclusion of either C. vulgaris meal up to 30% did not affect dietary ADCs for palmitoleic acid, eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA) (P ≥ 0.126). Single ingredient ADCs of nutrients, energy, EAAs and major fatty acids are reported for the first time for juvenile Atlantic salmon fed diets containing whole-cell and cell-ruptured C. vulgaris meals. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Tibbetts, Sean M. Mann, Jason Dumas, André |
author_facet |
Tibbetts, Sean M. Mann, Jason Dumas, André |
author_sort |
Tibbetts, Sean M. |
title |
Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
title_short |
Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
title_full |
Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
title_fullStr |
Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
title_full_unstemmed |
Apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile Atlantic salmon (Salmo salar L.) diets containing whole-cell or cell-ruptured Chlorella vulgaris meals at five dietary inclusion levels |
title_sort |
apparent digestibility of nutrients, energy, essential amino acids and fatty acids of juvenile atlantic salmon (salmo salar l.) diets containing whole-cell or cell-ruptured chlorella vulgaris meals at five dietary inclusion levels |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.aquaculture.2017.08.018 https://nrc-publications.canada.ca/eng/view/accepted/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/eng/view/object/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 https://nrc-publications.canada.ca/fra/voir/objet/?id=506d79f6-d7ca-49fc-823a-4b11fde854f4 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
issn:0044-8486 Aquaculture, Volume: 481, Publication date: 2017-08-19, Pages: 25–39 doi:10.1016/j.aquaculture.2017.08.018 |
op_doi |
https://doi.org/10.1016/j.aquaculture.2017.08.018 |
container_title |
Aquaculture |
container_volume |
481 |
container_start_page |
25 |
op_container_end_page |
39 |
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1766362019731079168 |