Astaxanthin krill oil enhances the growth performance and fatty acid composition of the Pacific whiteleg shrimp, <i>Litopenaeus vannamei</i>
, reared under hypersaline conditions

Castro, O.S.; Burri, Lena; Nunes, Alberto Jorge Pinto

doi:10.1111/anu.12577

Cited by 10 publications

(6 citation statements)

References 51 publications

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“…Water salinity, pH, temperature, and dissolved oxygen (DO) were measured daily in each tank, reaching a mean (± standard deviation) of 43±2 g L −1 (n = 3,067), 8.03±0.32 (n = 3,066), 30.2±0.90 °C (n = 3,066), and 5.03±0.53 mg L −1 (n = 3,036), respectively. These parameters fell within the limits tolerated by L. vannamei juveniles (Wyk, 1999), including water salinity (Castro et al, 2018). No statistical differences were observed in these parameters between treatments (P>0.05).…”

Section: Methodssupporting

confidence: 55%

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Leite

Melo

Nunes

2020

Revista Brasileira De Zootecnia

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Aquaculture Full-length research articleUtilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannameiABSTRACT -This study was conducted to evaluate the effect of rice byproducts on water quality, microbial community, and growth performance of L. vannamei juveniles. Shrimp of 0.98±0.10 g body weight (BW) were reared in 49 tanks of 1.5 m 3 under 127 animals m −2 for 77 days. Rice bran, rice grits, and rice hulls were mixed into five different fertilizers varying their fiber content (90, 110, 150, 200, and 250 g kg −1 ) and compared against sugarcane molasses (MO) and unfertilized tanks (UNF). Rice byproducts and MO were applied in water three times a week at a fixed rate of 4.5 g m −3 . Water salinity, pH, temperature, and dissolved oxygen reached 43±2 g L −1 , 8.03±0.32, 30.2±0.90 °C, and 5.03±0.53 mg L −1 , respectively. Settleable solids (SS) were higher in tanks fertilized with rice byproducts (from 2.5±1.0 to 3.1±1.1 mL L −1 ) and MO (3.4±1.0 mL L −1 ). Total ammonia nitrogen (0.19±0.09 mg L −1 ), nitrite (5.97±2.04 mg L −1 ), and nitrate (1.29±0.48 mg L −1 ) were kept low without any significant differences among treatments. The concentration of heterotrophic bacteria and fungi was significantly higher in rice byproducts compared with MO. Water fertilization had no effect on final shrimp survival (85.5±9.5%), weekly growth (0.72±0.11 g), and feed conversion ratio (1.59±0.10). Tanks treated with rice byproducts, except with 90 g kg −1 fiber, resulted in a higher final shrimp BW (from 9.04±1.56 to 9.52±1.89 g) compared with MO (8.75±2.14 g) and UNF (7.74±1.48 g). Gained yield and feed intake were significantly higher for tanks treated with rice byproducts than with UNF. A mix of rice byproducts can be equally or more effective as carbon sources to shrimp culture than MO.

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Section: Methodssupporting

confidence: 55%

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Leite

Melo

Nunes

2020

Revista Brasileira De Zootecnia

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“…Glencross (2009) showed that some fish, like turbot Scophthalmus maximus and red sea bream Pagrus major, have limited ability to elongate essential FAs of C18:2 n-6 and C18:3 n-3 into their respective lcPUFAs, so they require them from their diet. Furthermore, the amounts of ARA, EPA and DHA strongly influence the growth and survival of fish and shrimp (Tocher 2010, Castro et al 2018. The polychaetes produced in our experiment were high in PUFAs, with 28−29% n-3 PUFA (of the TFA, anchovy 30%, cod liver 24%, jack mackerel 26%) and contained all the essential FAs and can therefore serve as an important essential FA source for aqua feed production (Table S7).…”

Section: Effects Of Diet On Polychaete Lipid and Fa Compositionmentioning

confidence: 89%

Potential of the polychaete Hediste diversicolor fed on aquaculture and biogas side streams as an aquaculture food source

Wang¹,

Hagemann²,

Reitan³

et al. 2019

Aquacult. Environ. Interact.

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We evaluated the potential of the marine bristleworm Hediste diversicolor (Polychaeta) to recycle side streams from aquaculture and biogas production. Polychaetes were fed along a gradient from pure aquaculture sludge (SS) to pure solid biogas digestate (SBD) in 33% steps, with a positive control reared on fish feed (FF). Worms fed with FF showed the highest specific growth rate; there were no significant differences in growth rates among worms fed pure SS, pure SBD or their mixtures. While the diets differed significantly in protein concentrations, the worms showed comparable protein concentrations at the end of the 30 d rearing period (42−47% of dry weight). Lipid content in the worms was positively correlated with that in their diets. The worms on mixtures of SS and SBD with different ratios showed similar amino acid profiles. Fatty acid (FA) composition in the polychaetes reflected diet, where increased fractions of SBD resulted in an increase in long-chain polyunsaturated FAs, such as arachidonic (C20:4 n-6) and eicosapentaenoic (C20:5 n-3) acids, whereas increased ratios of SS increased docosapentaenoic (C22:5 n-3) and docosahexaenoic (C22:6 n-3) acids. These results suggest that polychaetes can recycle organic nutrients from aquaculture and biogas side streams into high-quality proteins and lipids, and can potentially serve as ingredients for aquafeeds.

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“…According to previous researches, Ast had been proved to minor impact the lipid composition of several aquatic animals (Castro et al, 2018;Tejera et al, 2007). However, there were few studies on the effect of Ast on lipid accumulation of fish.…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary supplementation of astaxanthin (Ast) on growth performance, activities of digestive enzymes, antioxidant capacity and lipid metabolism of large yellow croaker ( Larimichthys crocea ) larvae

Liu

Huang

et al. 2022

Aquaculture Research

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A 30-day feeding experiment was operated to evaluate the impact of astaxanthin (Ast) on growth performance, activities of digestive enzymes, antioxidant responses and lipid metabolism of large yellow croaker (Larimichthys crocea) larvae. Four microdiets (isonitrogenous and isolipidic) were formulated with graded Ast levels (0, 20, 40 and 80 mg/kg) in form of Haematococcus pluvialis powder (0, 0.4, 0.8 and 1.6 g/kg).Results showed that the specific growth rate of larvae was significantly enhanced by supplementation of 80 mg/kg Ast compared to the control group. Meanwhile, the Ast supplementation could significantly improve the digestive capacity of larvae through increasing activities of digestive enzymes, including trypsin in larvae pancreas segments (PS) and intestinal segments (IS), lipase, and alkaline phosphatase in brush border membranes compared to the control group. In terms of antioxidants, Ast supplementation significantly advanced the antioxidant capacity through increasing the activity of total antioxidant capacity and catalase, and reducing content of malondialdehyde. The activity of lysozyme and nitric oxide content of larvae were significantly increased by Ast supplementation compared to the control group. Furthermore, the triglyceride content in visceral mass was significantly reduced by Ast supplementation probably through up-regulating expression of lipid catabolism-related genes (cpt1, lpl, hl, aco, and pparα), and down-regulating expression of lipogenesis-related genes (fas, dgat2, and srebp1) and lipid transport-related genes (fabp11, apoB100, and mtp).In summary, appropriate supplementation of Ast (40-80 mg/kg) could improve the growth performance of large yellow croaker larvae through enhancing of digestive enzymes activities, antioxidant capacity and promoting lipid utilization.

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Astaxanthin krill oil enhances the growth performance and fatty acid composition of the Pacific whiteleg shrimp, Litopenaeus vannamei , reared under hypersaline conditions

Cited by 10 publications

References 51 publications

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Utilization of rice byproducts as carbon sources in high-density culture of the Pacific white shrimp, Litopenaeus vannamei

Potential of the polychaete Hediste diversicolor fed on aquaculture and biogas side streams as an aquaculture food source

Effects of dietary supplementation of astaxanthin (Ast) on growth performance, activities of digestive enzymes, antioxidant capacity and lipid metabolism of large yellow croaker ( Larimichthys crocea ) larvae

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