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Karl B Andree - One of the best experts on this subject based on the ideXlab platform.

  • dietary Aquaculture by product hydrolysates impact on the transcriptomic response of the intestinal mucosa of european seabass dicentrarchus labrax fed low fish meal diets
    BMC Genomics, 2018
    Co-Authors: Alexandre Leduc, Celine Zatylnygaudin, Marie Robert, Erwan Corre, Gildas Le Corguille, Helene Castel, Antoine Lefevrescelles, Vincent Fournier, Enric Gisbert, Karl B Andree
    Abstract:

    Aquaculture production is expected to double by 2030, and demands for aquaFeeds and raw materials are expected to increase accordingly. Sustainable growth of Aquaculture will require the development of highly nutritive and functional raw materials to efficiently replace fish meal. Enzymatic hydrolysis of marine and Aquaculture raw materials could bring new functionalities to finished products. The aim of this study was to determine the zootechnical and transcriptomic performances of protein hydrolysates of different origins (tilapia, shrimp, and a combination of the two) in European seabass (Dicentrarchux labrax) fed a low fish meal diet (5%), for 65 days. Results were compared to a positive control fed with 20% of fish meal. Growth performances, anterior intestine histological organization and transcriptomic responses were monitored and analyzed. Dietary inclusion of protein hydrolysates in the low fish meal diet restored similar growth performances to those of the positive control. Inclusion of dietary shrimp hydrolysate resulted in larger villi and more goblet cells, even better than the positive control. Transcriptomic analysis of the anterior intestine showed that dietary hydrolysate inclusion restored a pattern of intestinal gene expression very close to the pattern of the positive control. However, as compared to the low fish meal diet and depending on their origin, the different hydrolysates did not modulate metabolic pathways in the same way. Dietary shrimp hydrolysate inclusion modulated more metabolic pathways related to immunity, while nutritional metabolism was more impacted by dietary tilapia hydrolysate. Interestingly, the combination of the two hydrolysates enhanced the benefits of hydrolysate inclusion in diets: more genes and metabolic pathways were regulated by the combined hydrolysates than by each hydrolysate tested independently. Protein hydrolysates manufactured from Aquaculture by-products are promising candidates to help replace fish meal in Aquaculture Feeds without disrupting animal metabolism and performances.

Stefanie M Hixson - One of the best experts on this subject based on the ideXlab platform.

  • full substitution of fish oil with camelina camelina sativa oil with partial substitution of fish meal with camelina meal in diets for farmed atlantic salmon salmo salar and its effect on tissue lipids and sensory quality
    Food Chemistry, 2014
    Co-Authors: Stefanie M Hixson, Christopher C Parrish, Derek M Anderson
    Abstract:

    Abstract Camelina oil (CO) and meal (CM) are potential replacements of fish meal (FM) and oil (FO) in Aquaculture Feeds. CO is high in α-linolenic acid (18:3ω3, ALA) (30%), with an ω3/ω6 ratio >1. This study tested diets with 100% CO, solvent extracted FM (SEFM) and partially substituted FM with 10% CM, in a 16 week feeding trial with Atlantic salmon (initial weight 240 g fish −1 ). Final weight (529–691 g fish −1 ) was not affected by using 100% CO; however it was lower in groups fed SEFM and 10% CM diets. Total lipid in salmon flesh fed a diet with CO, SEFM and CM (22% ww −1 ) was significantly higher than FO flesh (14% ww −1 ). There was no difference in the sensory quality of salmon fillets that were fed either FO or 100% CO diets. This was the first study to use CO as a complete FO replacement in diets for farmed Atlantic salmon.

  • use of ω3 rich oilseed camelina camelina sativa as a fish oil replacement in Aquaculture Feeds implications for growth and lipid biochemistry of farmed atlantic cod gadus morhua rainbow trout oncorhynchus mykiss and atlantic salmon salmo salar
    2014
    Co-Authors: Stefanie M Hixson
    Abstract:

    Camelina oil (CO) is a potential lipid replacement for fish oil (FO) in Aquaculture Feeds due to its high lipid content (40%), high levels of α-linolenic acid (ALA, 18:3ω3) (30%), antioxidants, and low levels of saturated fatty acids. Five feeding experiments were conducted to determine the effectiveness of CO as a FO substitute for three farmed fish species relevant to Canadian Aquaculture: Atlantic cod (Gadus morhua), rainbow trout (Oncorhynchus mykiss) and Atlantic salmon (Salmo salar). Three experiments were conducted with Atlantic cod. In the first experiment, a fish oil control (FO), 40% (CO40) and 80% (CO80) replacement of FO with CO were fed to cod for 9 weeks. There was no effect of replacing FO with CO on growth performance. The second study tested diets with 100% replacement of FO with CO (100CO), solvent extracted fish meal (100COSEFM) and partially substituted fish meal (FM) with 15% inclusion of camelina meal (CM) (100CO15CM) for 13 weeks. Cod fed CO had a lower final weight than cod fed FO, while cod fed 100CO15CM had a lower final weight than all other groups. Cod tissue lipid and fatty acid profiles were significantly affected by CO inclusion. In the third experiment, cod were unintentionally exposed to the parasite Loma morhua, which was a significant factor that affected growth in this experiment. In the rainbow trout experiment, CO replaced 50% and 100% of FO. Growth was not affected after the 12 week feeding trial. Tissue lipid and fatty acid profiles were significantly affected by the addition of CO. Compound-specific stable isotope analysis indicated that 27% of docosahexaenoic acid (DHA, 22:6ω3) was synthesized de novo from the CO diet. The Atlantic salmon study tested diets with 100% CO, SEFM and 10% inclusion of CM, in a 16 week feeding trial. Growth was not affected by using 100% CO; however, it was lower in groups fed SEFM and 10% CM diets. Total lipid in salmon flesh fed a diet with CO, SEFM and CM was significantly higher than FO. Amounts of DHA in salmon fed any CO diet were similar to FO-fed salmon due to increased flesh lipid. The sensory quality of salmon fillets was not affected by CO.

  • substitution of fish oil with camelina oil and inclusion of camelina meal in diets fed to atlantic cod gadus morhua and their effects on growth tissue lipid classes and fatty acids
    Journal of Animal Science, 2014
    Co-Authors: Stefanie M Hixson, Christopher C Parrish
    Abstract:

    Developing a commercially relevant Atlantic cod Aquaculture industry will require improvements in feed sustainability. Camelina oil and meal are potential replacements of fish oil and fish meal in Aquaculture Feeds. Camelina oil is high in 18:3ω3 (30%), with an ω3/ω6 ratio > 1. Camelina meal has a considerable crude protein level (38%), which includes significant amounts of methionine and phenylalanine. Four diets were tested; each diet was fed to triplicate tanks (3 tanks per diet) of Atlantic cod (14.4 g/fish; 70 fish per tank) for 13 wk. The diets included a fish oil/fish meal control (FO) and three diets which replaced 100% of fish oil with camelina oil: one diet contained fish meal (100CO), another solvent extracted fish meal (100COSEFM), and another had fish meal partially reduced by 15% inclusion of camelina meal (100CO15CM). Growth was measured (length and weight) and tissue samples were collected for lipid analysis (muscle, liver, brain, gut, spleen, skin, and carcass) at wk 0 (before feeding the experimental diet) and at wk 13. Cod fed camelina oil had a lower (P < 0.001) final weight than cod fed the FO diet (50.8 ± 10.3 g/fish). Cod fed 100CO15CM had a lower (P < 0.001) final weight (35.0 ± 8.0 g) than those fed 100CO (43.6 ± 8.9 g) and 100COSEFM (46.7 ± 10.7 g). Cod tissues in the 100COSEFM treatment were most impacted by dietary fatty acid profile. Multivariate statistics revealed that FO and 100COSEFM tissue fatty acid profiles were 21 to 31% different, depending on tissue type. The full replacement of fish oil with camelina oil, plus solvent extracted fish meal had an overarching effect on the entire fatty acid profile of the whole animal. Fatty acid mass balance calculations indicated that cod fed 100COSEFM elongated 13% of 18:3ω3 to 20:3ω3 and oxidized the remaining 87%, whereas cod fed fish oil showed a much lower (P < 0.001) elongation of 18:3ω3 of 1.6%. These results suggest that excess 18:3ω3 from camelina oil caused some fatty acid elongation, but little desaturation. Energy budget estimates indicated that cod fed 100COSEFM deposited the most energy throughout the trial (60 kJ/fish; P = 0.019), mostly in the liver (90%). Excess camelina lipids were not necessarily utilized for energy, which likely impacted growth. Feeding 100% camelina oil to Atlantic cod impacted growth and lipid and fatty acid composition; however, additional removal of fish oil from fish meal caused the greatest change in cod lipid composition and utilization.

Christopher C Parrish - One of the best experts on this subject based on the ideXlab platform.

  • replacement of fish oil with camelina camelina sativa oil in diets for juvenile tilapia var gift oreochromis niloticus and its effect on growth feed utilization and muscle lipid composition
    Aquaculture, 2020
    Co-Authors: Eduardo A Toyesvargas, Maria Teresa Viana, Christopher C Parrish, Laura Carreonpalau, Paola Magallonservin, Francisco J Magallonbarajas
    Abstract:

    Abstract Camelina oil (CO) is a potential replacement for fish oil (FO) in Aquaculture Feeds. CO is high in α-linolenic acid (18:3n-3 or ALA) (35%), with an omega-3/omega-6 (n-3/n-6) ratio near 2. In order to test the effect of CO on the overall performance of tilapia (Oreochromis niloticus var. GIFT), feed utilization, lipid composition and capacity to synthesize the long-chain fatty acids eicosapentaenoic acid (20:5n-3 or EPA) and docosahexaenoic acid (22:6n-3 or DHA) from ALA, were tested in an 8-week feeding trial with juvenile tilapia. The average fish weight at the start was 28 ± 6 g and they were grown in a biofloc system. Four dietary treatments were formulated, two containing either fish oil (TFO) or camelina oil (TCO), and two more where FO was replaced by CO at low (Low-CO) and mid (Mid-CO) levels. A commercial diet (COM) was used as a reference diet. Compound-specific stable isotope analysis (CSIA) and stable isotope mixing models with R software (SIAR) were used to calculate the contribution of ALA to EPA and DHA synthesis. At the end of the experiment, replacing FO by CO had no effect on growth (139 ± 22 g fish−1) or total lipid in the muscle (2.2–2.9 g). However, the tilapia fed TCO had significantly more phospholipid in muscle compared to tilapia fed TFO. Also, a higher content of linoleic acid (18:2n-6 or LOA) and ALA was revealed. ALA content in muscle followed the ALA content in diets; by contrast, EPA and DHA decreased significantly as the level of dietary CO increased. Despite the variation in fatty acids, n-3 PUFA and the n-3/n-6 ratio in muscle tissue did not show differences among experimental diets. CSIA revealed that the δ13C isotopic signature of DHA in tilapia muscle after feeding TCO and biofloc was slightly but significantly enriched in ( Budge et al., 2008 )C. However, CO feeding resulted in a significantly depleted isotopic signal for docosapentaenoic acid (22:5n-3 or DPA) compared to FO. SIAR indicated that 28% of DHA, 36% of EPA, and 40% of DPA was synthesized from camelina oil ALA.

  • full substitution of fish oil with camelina camelina sativa oil with partial substitution of fish meal with camelina meal in diets for farmed atlantic salmon salmo salar and its effect on tissue lipids and sensory quality
    Food Chemistry, 2014
    Co-Authors: Stefanie M Hixson, Christopher C Parrish, Derek M Anderson
    Abstract:

    Abstract Camelina oil (CO) and meal (CM) are potential replacements of fish meal (FM) and oil (FO) in Aquaculture Feeds. CO is high in α-linolenic acid (18:3ω3, ALA) (30%), with an ω3/ω6 ratio >1. This study tested diets with 100% CO, solvent extracted FM (SEFM) and partially substituted FM with 10% CM, in a 16 week feeding trial with Atlantic salmon (initial weight 240 g fish −1 ). Final weight (529–691 g fish −1 ) was not affected by using 100% CO; however it was lower in groups fed SEFM and 10% CM diets. Total lipid in salmon flesh fed a diet with CO, SEFM and CM (22% ww −1 ) was significantly higher than FO flesh (14% ww −1 ). There was no difference in the sensory quality of salmon fillets that were fed either FO or 100% CO diets. This was the first study to use CO as a complete FO replacement in diets for farmed Atlantic salmon.

  • substitution of fish oil with camelina oil and inclusion of camelina meal in diets fed to atlantic cod gadus morhua and their effects on growth tissue lipid classes and fatty acids
    Journal of Animal Science, 2014
    Co-Authors: Stefanie M Hixson, Christopher C Parrish
    Abstract:

    Developing a commercially relevant Atlantic cod Aquaculture industry will require improvements in feed sustainability. Camelina oil and meal are potential replacements of fish oil and fish meal in Aquaculture Feeds. Camelina oil is high in 18:3ω3 (30%), with an ω3/ω6 ratio > 1. Camelina meal has a considerable crude protein level (38%), which includes significant amounts of methionine and phenylalanine. Four diets were tested; each diet was fed to triplicate tanks (3 tanks per diet) of Atlantic cod (14.4 g/fish; 70 fish per tank) for 13 wk. The diets included a fish oil/fish meal control (FO) and three diets which replaced 100% of fish oil with camelina oil: one diet contained fish meal (100CO), another solvent extracted fish meal (100COSEFM), and another had fish meal partially reduced by 15% inclusion of camelina meal (100CO15CM). Growth was measured (length and weight) and tissue samples were collected for lipid analysis (muscle, liver, brain, gut, spleen, skin, and carcass) at wk 0 (before feeding the experimental diet) and at wk 13. Cod fed camelina oil had a lower (P < 0.001) final weight than cod fed the FO diet (50.8 ± 10.3 g/fish). Cod fed 100CO15CM had a lower (P < 0.001) final weight (35.0 ± 8.0 g) than those fed 100CO (43.6 ± 8.9 g) and 100COSEFM (46.7 ± 10.7 g). Cod tissues in the 100COSEFM treatment were most impacted by dietary fatty acid profile. Multivariate statistics revealed that FO and 100COSEFM tissue fatty acid profiles were 21 to 31% different, depending on tissue type. The full replacement of fish oil with camelina oil, plus solvent extracted fish meal had an overarching effect on the entire fatty acid profile of the whole animal. Fatty acid mass balance calculations indicated that cod fed 100COSEFM elongated 13% of 18:3ω3 to 20:3ω3 and oxidized the remaining 87%, whereas cod fed fish oil showed a much lower (P < 0.001) elongation of 18:3ω3 of 1.6%. These results suggest that excess 18:3ω3 from camelina oil caused some fatty acid elongation, but little desaturation. Energy budget estimates indicated that cod fed 100COSEFM deposited the most energy throughout the trial (60 kJ/fish; P = 0.019), mostly in the liver (90%). Excess camelina lipids were not necessarily utilized for energy, which likely impacted growth. Feeding 100% camelina oil to Atlantic cod impacted growth and lipid and fatty acid composition; however, additional removal of fish oil from fish meal caused the greatest change in cod lipid composition and utilization.

Alexandre Leduc - One of the best experts on this subject based on the ideXlab platform.

  • dietary Aquaculture by product hydrolysates impact on the transcriptomic response of the intestinal mucosa of european seabass dicentrarchus labrax fed low fish meal diets
    BMC Genomics, 2018
    Co-Authors: Alexandre Leduc, Celine Zatylnygaudin, Marie Robert, Erwan Corre, Gildas Le Corguille, Helene Castel, Antoine Lefevrescelles, Vincent Fournier, Enric Gisbert, Karl B Andree
    Abstract:

    Aquaculture production is expected to double by 2030, and demands for aquaFeeds and raw materials are expected to increase accordingly. Sustainable growth of Aquaculture will require the development of highly nutritive and functional raw materials to efficiently replace fish meal. Enzymatic hydrolysis of marine and Aquaculture raw materials could bring new functionalities to finished products. The aim of this study was to determine the zootechnical and transcriptomic performances of protein hydrolysates of different origins (tilapia, shrimp, and a combination of the two) in European seabass (Dicentrarchux labrax) fed a low fish meal diet (5%), for 65 days. Results were compared to a positive control fed with 20% of fish meal. Growth performances, anterior intestine histological organization and transcriptomic responses were monitored and analyzed. Dietary inclusion of protein hydrolysates in the low fish meal diet restored similar growth performances to those of the positive control. Inclusion of dietary shrimp hydrolysate resulted in larger villi and more goblet cells, even better than the positive control. Transcriptomic analysis of the anterior intestine showed that dietary hydrolysate inclusion restored a pattern of intestinal gene expression very close to the pattern of the positive control. However, as compared to the low fish meal diet and depending on their origin, the different hydrolysates did not modulate metabolic pathways in the same way. Dietary shrimp hydrolysate inclusion modulated more metabolic pathways related to immunity, while nutritional metabolism was more impacted by dietary tilapia hydrolysate. Interestingly, the combination of the two hydrolysates enhanced the benefits of hydrolysate inclusion in diets: more genes and metabolic pathways were regulated by the combined hydrolysates than by each hydrolysate tested independently. Protein hydrolysates manufactured from Aquaculture by-products are promising candidates to help replace fish meal in Aquaculture Feeds without disrupting animal metabolism and performances.

Gildas Le Corguille - One of the best experts on this subject based on the ideXlab platform.

  • dietary Aquaculture by product hydrolysates impact on the transcriptomic response of the intestinal mucosa of european seabass dicentrarchus labrax fed low fish meal diets
    BMC Genomics, 2018
    Co-Authors: Alexandre Leduc, Celine Zatylnygaudin, Marie Robert, Erwan Corre, Gildas Le Corguille, Helene Castel, Antoine Lefevrescelles, Vincent Fournier, Enric Gisbert, Karl B Andree
    Abstract:

    Aquaculture production is expected to double by 2030, and demands for aquaFeeds and raw materials are expected to increase accordingly. Sustainable growth of Aquaculture will require the development of highly nutritive and functional raw materials to efficiently replace fish meal. Enzymatic hydrolysis of marine and Aquaculture raw materials could bring new functionalities to finished products. The aim of this study was to determine the zootechnical and transcriptomic performances of protein hydrolysates of different origins (tilapia, shrimp, and a combination of the two) in European seabass (Dicentrarchux labrax) fed a low fish meal diet (5%), for 65 days. Results were compared to a positive control fed with 20% of fish meal. Growth performances, anterior intestine histological organization and transcriptomic responses were monitored and analyzed. Dietary inclusion of protein hydrolysates in the low fish meal diet restored similar growth performances to those of the positive control. Inclusion of dietary shrimp hydrolysate resulted in larger villi and more goblet cells, even better than the positive control. Transcriptomic analysis of the anterior intestine showed that dietary hydrolysate inclusion restored a pattern of intestinal gene expression very close to the pattern of the positive control. However, as compared to the low fish meal diet and depending on their origin, the different hydrolysates did not modulate metabolic pathways in the same way. Dietary shrimp hydrolysate inclusion modulated more metabolic pathways related to immunity, while nutritional metabolism was more impacted by dietary tilapia hydrolysate. Interestingly, the combination of the two hydrolysates enhanced the benefits of hydrolysate inclusion in diets: more genes and metabolic pathways were regulated by the combined hydrolysates than by each hydrolysate tested independently. Protein hydrolysates manufactured from Aquaculture by-products are promising candidates to help replace fish meal in Aquaculture Feeds without disrupting animal metabolism and performances.

  • Dietary Aquaculture by-product hydrolysates: impact on the transcriptomic response of the intestinal mucosa of European seabass (Dicentrarchus labrax) fed low fish meal diets
    BioMed Central, 2018
    Co-Authors: Leduc Alexandre, Gildas Le Corguille, Zatylny-gaudin Céline, Robert Marie, Corre Erwan, Castel Hélène, Lefevre-scelles Antoine, Fournier Vincent, Gisbert Enric, Andree Karl
    Abstract:

    International audienceBackground: Aquaculture production is expected to double by 2030, and demands for aquaFeeds and raw materials are expected to increase accordingly. Sustainable growth of Aquaculture will require the development of highly nutritive and functional raw materials to efficiently replace fish meal. Enzymatic hydrolysis of marine and Aquaculture raw materials could bring new functionalities to finished products. The aim of this study was to determine the zootechnical and transcriptomic performances of protein hydrolysates of different origins (tilapia, shrimp, and a combination of the two) in European seabass (Dicentrarchux labrax) fed a low fish meal diet (5%), for 65 days.Results: Results were compared to a positive control fed with 20% of fish meal. Growth performances, anterior intestine histological organization and transcriptomic responses were monitored and analyzed. Dietary inclusion of protein hydrolysates in the low fish meal diet restored similar growth performances to those of the positive control. Inclusion of dietary shrimp hydrolysate resulted in larger villi and more goblet cells, even better than the positive control. Transcriptomic analysis of the anterior intestine showed that dietary hydrolysate inclusion restored a pattern of intestinal gene expression very close to the pattern of the positive control. However, as compared to the low fish meal diet and depending on their origin, the different hydrolysates did not modulate metabolic pathways in the same way. Dietary shrimp hydrolysate inclusion modulated more metabolic pathways related to immunity, while nutritional metabolism was more impacted by dietary tilapia hydrolysate. Interestingly, the combination of the two hydrolysates enhanced the benefits of hydrolysate inclusion in diets: more genes and metabolic pathways were regulated by the combined hydrolysates than by each hydrolysate tested independently.Conclusions: Protein hydrolysates manufactured from Aquaculture by-products are promising candidates to help replace fish meal in Aquaculture Feeds without disrupting animal metabolism and performances