Feasibility of dietary substitution of live microalgae with spray-dried Schizochytrium sp. or Spirulina in the hatchery culture of juveniles of the Pacific geoduck clam (Panopea generosa)

Arney, Bianca; Liu, Wen-Shan; Forster, Ian; McKinley, R. S.; Pearce, Christopher M.

doi:10.1016/j.aquaculture.2015.02.014

Cited by 45 publications

(29 citation statements)

References 57 publications

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“…Schizochytrium is a unicellular, heterotrophic thraustochytrid, with a relatively high lipid levels (~10-50%), and high level of total lipids as DHA (30-70%) (Lewis et al 1999;Arney, Liu, Forster, McKinley & Pearce 2015). Previous studies have suggested that Schizochytrium can be used as a feed to effectively enrich both n-3 and n-6 LC-PUFAs contents of rotifers and Artemia nauplii prior to feeding these to fish and shrimp larvae (Lewis et al 1999;Li et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Schizochytrium meal in microdiets of Pacific white shrimp ( Litopenaeus vannamei ) larvae

Wang

Filer

et al. 2016

Aquac Res

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A feeding trial was conducted to assess the effects of dietary Schizochytrium meal supplementation on survival, growth performance, activities of digestive enzymes and fatty acid composition in Pacific white shrimp (Litopenaeus vannamei) larvae (initial body weight 4.21 ± 0.10 mg). Four isonitrogenous and isolipidic diets were formulated to contain graded levels of Schizochytrium meal: 0% (S0, the control diet), 2% (S2), 4% (S4) and 6% dry matter (S6). Results showed that there was no significant difference in survival of shrimps among dietary treatments (P > 0.05). Shrimps fed diets with 2% and 4% microalgae meal had significantly higher specific growth rate (SGR) than that of shrimps fed diets with 0% and 6% microalgae meal, and no significant differences were observed between shrimps fed diets with 2% and 4% microalgae meal (P > 0.05). Activity of trypsin in the pancreatic and intestinal segments, and activity of amylase in the pancreatic segments were not significantly affected by dietary microalgae meal levels (P > 0.05). Specific activities of both alkaline phosphatase and leucine‐aminopeptidase in intestine and purified brush border membrane of intestine were significantly higher in shrimps fed diet with 2% microalgae meal (P < 0.05). There were no significant differences in C18:2n‐6, n‐3 fatty acids, n‐6fatty acids, PUFA and n‐3/n‐6 in muscle samples among dietary treatments. C16:1n‐7, C18:1n‐9, MUFA, C18:3n‐3 and C20:5n‐3 decreased, however, C20:4n‐6 increased in the muscle as dietary microalgae meal level increased. In conclusion, 4% Schizochytrium meal in microdiets of shrimps can improve growth performance and may be a valuable additive in the microdiets of shrimps.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Schizochytrium meal in microdiets of Pacific white shrimp ( Litopenaeus vannamei ) larvae

Wang

Filer

et al. 2016

Aquac Res

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“…This entails a dependence on the production of live microalgae, which may represent up to 30%–40% of the hatchery operational costs (Coutteau & Sorgeloos, ). This economic limitation has fostered research focusing on dietary replacement of live microalgae in bivalve hatcheries (Arney, Liu, Forster, McKinley, & Pearce, ; Boeing, ). A research line has focused on seaweed (SW), which is deemed to be a food source both for human and animal nutrition, mainly due to its high nutritional value (Peng et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…This entails a dependence on the production of live microalgae, which may represent up to 30%-40% of the hatchery operational costs (Coutteau & Sorgeloos, 1992). This economic limitation has fostered research focusing on dietary replacement of live microalgae in bivalve hatcheries (Arney, Liu, Forster, McKinley, & Pearce, 2015;Boeing, 1997).…”

Section: Introductionmentioning

confidence: 99%

Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning

Cardoso

Gomes

Rato

et al. 2019

Food Science & Nutrition

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The Pacific oyster ( Crassostrea gigas ) culture has been expanding, thereby leading to a greater importance of hatcheries. Broodstock conditioning is very important in the hatchery process, in which diet composition may have a strong influence on the offspring production and quality. Therefore, the current study evaluated elemental composition and bioaccessibility of oysters fed different ratios of dietary seaweed (SW) and microalgae. The dietary conditioning consisted of direct replacement of microalgae by SW at four substitution levels (0%, 25%, 50%, and 100% diet). It was observed that oysters fed 100% SW had the highest levels of Be, Cu, Zn, Sr, and Cd. The most important trend was a concentration decline of most elements with progressively lower levels of SW substitution for microalgae in the feeds. No Cd or Pb hazard (contents below 1.0 mg/kg for Cd and 1.5 mg/kg for Pb) was found in oyster meat. Regarding elemental bioaccessibility, values were similar, near 100% in the cases of Cu, Br, and I. Only for Mn and Pb, bioaccessibility percentages deviated more from 100%. Indeed, the value for Pb was 50% ± 7% (initial group), and for Mn, all values were equal or lower than 29% ± 2% (final group of oysters fed microalgae). It was observed that Mn, Cd, and Pb bioaccessibility increased with a growing share of microalgal biomass in the feed. Therefore, this study showed that SW incorporation into the feed influences elemental composition and bioaccessibility of the oysters.

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“…Among the most common are spray-drying (sample spray in a chamber under a hot air stream) [74], drum-drying (transfer of heat to the sample through the inner walls of the drum cylinder) [75], lyophilization (sample freezing and removal of moisture by sublimation) [76] and sun drying [77].…”

Section: Obtaining Bio-products From Microalgae Biomassmentioning

confidence: 99%

Can Microalgae Act as Source of Preservatives in Food Chain?

Scaglioni¹,

Badiale‐Furlong²

2017

JFSE

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Microalgae are a potential source for various valuable chemicals for commercial applications ranging from nutraceuticals to fuels. This review aims to focus on microalgal as preservative potential to food chain. The main compounds responsible for these properties, like carotenoids, phenolic compounds, antioxidant vitamins, sterols and polyunsaturated fatty acids are discussed because microalgae can be cultivated under controlled conditions to improve their production. We have listed several studies performed in recent years supporting the health benefits that most of these compounds can provide. Therefore, they may represent an excellent source of preservatives in food chain once their safety as a food supplement has been also confirmed.

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Feasibility of dietary substitution of live microalgae with spray-dried Schizochytrium sp. or Spirulina in the hatchery culture of juveniles of the Pacific geoduck clam (Panopea generosa)

Cited by 45 publications

References 57 publications

Evaluation of Schizochytrium meal in microdiets of Pacific white shrimp ( Litopenaeus vannamei ) larvae

Evaluation of Schizochytrium meal in microdiets of Pacific white shrimp ( Litopenaeus vannamei ) larvae

Elemental composition and bioaccessibility of farmed oysters (Crassostrea gigas) fed different ratios of dietary seaweed and microalgae during broodstock conditioning

Can Microalgae Act as Source of Preservatives in Food Chain?

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