Utilization of Nannochloropsis oceanica in plant-based feeds by Atlantic salmon (Salmo salar)

Liu, Cui; Palihawadana, Anjana Mahesh; Nadanasabesan, Nimalan; Vasanth, Ghana Kalerammana; Vatsos, Ioannis N.; Dias, Jorge; Valente, Luísa M.P.; Micallef, Giulia; Sørensen, Mette; Kiron, Viswanath

doi:10.1016/j.aquaculture.2022.738651

Cited by 7 publications

(2 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our study, the dietary inclusion of microalgae-based additives increased muscle PUFAs (n3 and n6), and SFAs and MUFAs content were unchanged (Table 4). Similar findings have been reported by Liu et al [44] and Sáez et al [13], indicating lower monounsaturated fatty acid (MUFA) and higher PUFA contents in Atlantic salmon and gilthead seabream fed with 2.5% and 5% N. oceanica, and N. gaditana, respectively. On the other hand, Galafat et al [12] did not observe any effect on the accretion of SFAs, MUFAs, or PUFAs in muscles after feeding with 5% and 10% A. platensis in gilthead seabream.…”

Section: Discussionsupporting

confidence: 86%

Feed Additives Based on N. gaditana and A. platensis Blend Improve Quality Parameters of Aquacultured Gilthead Seabream (Sparus aurata) Fresh Fillets

Sáez,

Galafat,

Tapia Paniagua

et al. 2024

Fishes

View full text Add to dashboard Cite

The aim of this research is to explore the potential effects of two microalgae-based additives included in finishing feeds on the quality and shelf-life of seabream fillets. In a 41-day feeding trial, seabream specimens were fed with experimental aquafeeds containing 10% of the bioactive supplements. These additives consisted of a blend of Nannochloropsis gaditana and Arthrospira platensis biomass, which was utilized as either raw (LB-CB) or enzymatically hydrolyzed (LB-CBplus). A control group received a microalgae-free diet. The results showed that the functional aquafeeds improved the nutritional profile of seabream fillets, increasing protein and PUFA-n3 contents while reducing the atherogenic index, especially for the LB-CBplus treatment. LB-CBplus also enhanced the texture parameters (hardness and chewiness) of fillets during the initial 5 days under cold storage. Regarding skin pigmentation, fillets showed increased greenish and yellowish coloration compared to control fish, mostly attributed to the inclusion of crude algal biomass (LB-CB). Moreover, diets enriched with microalgae additives effectively delayed muscle lipid oxidation processes under refrigeration for up to 12 days, with LB-CBplus exhibiting higher antioxidant effects. These findings highlight the potential of microalgae-based additives to enhance both the nutritional and organoleptic quality of seabream fillets.

show abstract

Section: Discussionsupporting

confidence: 86%

Feed Additives Based on N. gaditana and A. platensis Blend Improve Quality Parameters of Aquacultured Gilthead Seabream (Sparus aurata) Fresh Fillets

Sáez,

Galafat,

Tapia Paniagua

et al. 2024

Fishes

View full text Add to dashboard Cite

show abstract

“…These observations are thus generally in agreement with many other studies on Atlantic salmon where FM has been replaced with various plant proteins [20][21][22][23]65,66]. For example, in a comparable study, using fish of similar size and fed various plant concentrate-based feeds together with canola oil, the DHA-EPA rich marine algae Nannochloropsis oceanica and low levels of FO, a 123-157% increase in body weight was observed after 84-days; however, growth of the FM/FO control group was greater (p < 0.001) [67].…”

Section: Discussionmentioning

confidence: 99%

Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets

Barrows,

Campbell,

Gaylord

et al. 2023

Fishes

View full text Add to dashboard Cite

The purpose of this study was to determine the influence of krill meal (KM) inclusion at various levels (0%, 2.5%, 5%) in plant-based and animal-based feeds, that were fishmeal (FM) and fish oil (FO) free, on Atlantic salmon growth. A FM/FO feed containing 0% KM was the control. Using a 2 × 3 factorial approach, diets were randomly assigned to one of 28 0.5 m3 flow-through tanks (n = 4 tanks per diet) initially stocked with 60 fish (148.4 ± 12.9 g; 23.6 ± 0.8 cm; condition factor (K) = 1.16 ± 0.08) each. Salmon were fed for 90 days using automatic feeders ad libitum. On day 45, stocking densities were reduced to 45 fish per tank by the random removal of 15 individuals to remove any potential of density affecting growth through the trial end. Water temperature, oxygen saturation, pH, and salinity throughout the trial were 11.8 °C, 103.5%, 7.38, and 32.0 g L−1, respectively. Fish fed plant-based feed without KM were lighter (p < 0.05) than all other groups at day 45 and 90, but those fed a plant-based feed with KM had comparable growth and feed intake compared to that of fish fed the control diet. Irrespective of the presence of KM, animal-based feeds achieved comparable weight growth (p > 0.05) to the control and 5% KM plant-based groups, with KM increasing feed intake (p < 0.05). Between day 45 and 90, feed conversion ratios increased in all groups except the control and 0% KM plant-based group, while specific growth rates (SGRs) decreased for all except the 0% KM plant-based diet. Between-group differences (p < 0.05) were also noted for the thermal growth coefficient. No differences were recorded in visceral or intestinal weight, and whole-body lipid levels were identical, proportional for all groups. Although differences (p < 0.05) were apparent in the concentrations of individual fillet fatty acids between groups, a 75 g serving size of any treatment would be sufficient to exceed daily intake recommendations for EPA + DHA. This trial determined that benefit, in terms of feed intake and growth performance, was gained when KM was added to plant-based feeds. However, no such advantage was observed when KM was used with animal-based feeds.

show abstract

Towards cleaner environment: recycling microalgal co-product to reduce emissions and impacts while eliminating fishmeal in rainbow trout feed for sustainable aquaculture

Sarker,

Figueroa,

Kapuscinski

et al. 2024

Environ Sci Pollut Res

View full text Add to dashboard Cite

The rapid increase in aquaculture over the last several decades has led to concerns about the environmental impact of fish feeds relying on marine resources for fishmeal (FM). We aim to assess Nannochloropsis sp. QH25 co-product as a viable and sustainable replacement for FM in juvenile rainbow trout, Oncorhynchus mykiss, feeds. We formulated four experimental diets: a reference (FM based), 33N, 66N, and 100N diet (33%, 66%, and 100% co-product replacement). Rainbow trout were randomly assigned to one of 16 tanks and randomly assigned an experimental diet to consume throughout the experiment (64 days total), with four replicate tanks per diet. We compared the phosphorus (P) and nitrogen (N) digestibility, emissions, and growth between diets and, compared six environmental impacts (biotic resource use (BRU), global warming potential (GWP), water use, land use, marine eutrophication potential (MEP), and freshwater eutrophication potential (FEP)) of each diet. Our results indicate that replacing FM with co-product did not significantly alter growth. P digestibility of the experimental and reference diets was comparable. BRU conversion ratio was significantly lower in the experimental diets. However, there were significantly higher water and land use conversion ratios but insignificantly higher results in GWP, MEP, and FEP between the reference and 100N diet.

show abstract

Utilization of Nannochloropsis oceanica in plant-based feeds by Atlantic salmon (Salmo salar)

Cited by 7 publications

References 53 publications

Feed Additives Based on N. gaditana and A. platensis Blend Improve Quality Parameters of Aquacultured Gilthead Seabream (Sparus aurata) Fresh Fillets

Feed Additives Based on N. gaditana and A. platensis Blend Improve Quality Parameters of Aquacultured Gilthead Seabream (Sparus aurata) Fresh Fillets

Influence of Krill Meal on the Performance of Post-Smolt Atlantic Salmon That Are Fed Plant-Based and Animal-Based Fishmeal and Fish Oil-Free Diets

Towards cleaner environment: recycling microalgal co-product to reduce emissions and impacts while eliminating fishmeal in rainbow trout feed for sustainable aquaculture

Contact Info

Product

Resources

About