Use of Lactic Acid Bacteria During Pikeperch (Sander lucioperca) Larval Rearing

Yanes-Roca, Carlos; Leclercq, Éric; Veselý, Lukáš; Malinovskyi, Oleksandr; Policar, T.

doi:10.3390/microorganisms8020238

Cited by 8 publications

(15 citation statements)

References 52 publications

(62 reference statements)

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“…As reported by several recent studies (Imentai et al, 2019;Yanes-Roca et al, 2018;Yanes-Roca, Leclercq, et al, 2020), pikeperch is a species that has a high dependence on rotifers and may have a high susceptibility for taurine deficiency since rotifers have very low taurine concentrations when compared to Artemia and copepods, as described in California yellow tail (Seriola lalandi) (Hawkyard et al, 2014(Hawkyard et al, , 2015(Hawkyard et al, , 2016.…”

Section: Discussionmentioning

confidence: 95%

“…In this sense, great progress has been made in improving the efficiency and reducing the high costs of pikeperch culture in RAS as it is widely accepted that the commercial development of this species relies on the optimization of recirculation culture techniques (FAO, 2016;Steffens et al, 1996). In an effort to meet such an objective, the introduction of rotifers during first feeding has contributed to improved larval quality, survival and growth (Imentai et al, 2019(Imentai et al, , 2020Yanes-Roca et al, 2018;Yanes-Roca, Leclercq, et al, 2020;Yanes-Roca, Mráz, et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Taurine supplement improved growth performance and digestive capacity of pikeperch larvae

Yanes-Roca

Galindo

Holzer

et al. 2022

Aquaculture Research

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Pikeperch (Sander lucioperca) intensive aquaculture development has been slowed down by high mortality rates (>70%) during larval rearing. The use of taurine during larval development in other species has been reported to improve survival as well as growth. This trial aims to find out whether supplementation of taurine during the larval stage will benefit pikeperch larval performance and if digestive enzyme production can be promoted. A 21-day trial was carried out, in which taurine live feed enrichment for pikeperch larvae was tested. Overall, growth parameters, such as total length (TL), myomere height (MH) and eye diameter (ED), were significantly higher, whereas survival between treatments remained equal. Specific activities of digestive enzymes in the control group were low compared to the taurine group during the first 7 days post hatching (dph) but reached the peak values for alkaline proteases, lipase and pepsin at 14 dph. Taurine supplementation increased specific pepsin, alkaline proteases and lipase activities in early larval stages where larvae presented enhanced levels of alkaline proteases and pepsin activities at 7 dph, while that of lipase tended to be higher although not significantly. Such enhancement of enzyme activity can improve nutrient availability, which has had a direct effect in improving pikeperch larvae growth and development. However, these differences in digestive activity were compensated at the end of the experimental period (21 dph).

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Taurine supplement improved growth performance and digestive capacity of pikeperch larvae

Yanes-Roca

Galindo

Holzer

et al. 2022

Aquaculture Research

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“…Such nutritional value enhancement has a direct effect on growth, functional development, stress resilience, and survival rate, as shown in several species such as barramundi (Lates calcarifer), seabream (Sparus aurata), seabass (Dicentrarchus labrax), and pikeperch (Ferreira et al, 2018;Nyina-wamwiza et al, 2005;Thépot et al, 2016;Yanes-Roca, Leclercq, et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture

Yanes‐Roca,

Štěrbová,

Mráz

et al. 2024

J World Aquaculture Soc

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This trial aimed to customize pikeperch (Sander lucioperca) larval nutrition using live feed enrichments based on Chlorella vulgaris and Trachydiscus minutus. Pikeperch larvae were fed with rotifers and Artemia enriched with C. vulgaris and T. minutus during the first 17 days after exogenous feeding (started 4 days post‐hatching [dph]) and only Artemia until 20 dph. Larvae were exposed to seven different enrichments: (a) Nannochloropsis occulata (Nanno 3600 reed Mariculture) (Control), (b) C. vulgaris cultured at 20°C in BG‐117 medium (BG20), (c) C. vulgaris cultured at 30°C in BG‐117 medium (BG30), (d) T. minutus cultured at 15°C (T15), (e) T. minutus cultured at 25°C (T25), (f) C. vulgaris cultured at 20°C in urea medium (U20), and (g) C. vulgaris cultured at 30°C in urea medium (U30). After 20 days, no significant differences were found between treatments on total length, standard length, myomere height, and eye diameter. On the contrary, significant differences were found in larval fatty acid composition after the trial period. Larvae from the BG30 treatment showed a significantly higher concentration of docosahexaenoic acid (5.61%), and larvae from the T25 treatment had a higher concentration of eicosapentaenoic acid 12.95%. Furthermore, larvae from the U20 treatment had a significantly higher arachidonic acid concentration of 0.116%. Overall, regarding essential fatty acid concentration, a significant difference was observed between the control treatment (Nannochloropsis) and the other treatments. No adverse effects were found on growth or survival when Nannochloropsis‐enriched live feed was replaced with the other enrichments. This trial's results will help optimize the pikeperch larvae's nutritional requirements and diversify the live feed enrichments used during the first feeding.

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“…Although Artemia is a common diet in fish larviculture, the nutritional profile, size and inconsistent in biochemical composition, makes it less suitable candidate for first feeding. In this respect, recent studies showed the importance of larval first feeding with rotifers (Brachionus plicatilis) with a supplementation of microalgae to provide a better growth and higher survival (Yanes-Roca et al, 2018;Imentai et al, 2020;Yanes-Roca et al, 2020a;Yanes-Roca et al, 2020b). It was reported that higher growth and survival was reached when larvae fed with B. plicatilis at the beginning of exogenous feeding and afterwards replaced with Artemia or a combination of two during first feeding (Imentai et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of First Feeding Regime on Gene Expression and Enzyme Activity in Pikeperch (Sander lucioperca) Larvae

et al. 2022

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The present study investigates the effects of different feeding regimes with rotifers (Brachionus plicatilis) and Artemia salina on the gene expression and digestive enzymes in pikeperch (Sander lucioperca) larvae at 17 days post-hatch (DPH) over a period of 13 days. Five experimental feeding protocols were performed in four replicates. At 4 DPH, the larvae (total length= 5.62 ± 0.03 mm, body weight = 0.66 ± 0.16 mg) were divided into five experimental groups (2-L tanks) at initial density of 100 larvae per liter. Light intensity on the water surface was 90-100 lux and photoperiod was set at 13L: 11D (07:00 to 20:00 h). Water temperature, pH, and dissolved oxygen (DO) were measured before each feeding and the values were 17.8 ± 0.17°C, 7.3 ± 0.04 and 88.5 ± 2.53%. The fish larvae at 5 days post-hatch (DPH), were initially fed with rotifers (Brachionus plicatilis) for 3 days and from 8 to 17 DPH were fed with rotifers/Artemia for different time periods as follows: (A) only rotifers; (B) 8–13 DPH rotifers/14–17 DPH Artemia; (C) 8–10 DPH rotifers/11–17 DPH Artemia; (D) only Artemia; (E) a combination of rotifers and Artemia. Frozen paste of algae was added to the larval tanks twice a day (2 x 300,000 cells/mL). Rotifers and Artemia were provided as live feed to larvae three times a day with residual counts prior to each feeding. Feeding densities were steadily increased based on residual counts, performed prior to each feeding. The expression of genes related to intestinal development and maturation (aminopeptidase N, anpep; leucine aminopeptidase 3, lap3; intestinal-type alkaline phosphatase, alpi), together with key pancreatic digestive proenzymes (trypsinogen 1, try1; chymotrypsinogen b, ctrb; carboxyl ester lipase precursor, cel; phospholipase a2, pla2g1b; pancreatic alpha amylase, amy2a), were assessed. Additionally, the activity of six enzymes (trypsin, lipase, alkaline phosphatase, amino peptidase, amylase, and chymotrypsin) were determined. The highest expression of two genes related to intestine (lap3; anpep) were observed in the fish fed a combination of rotifers and Artemia from 8 DPH (Group E). The expression of amy2a, ctrb, pla2g1b, try1 was significantly lower in larvae fed rotifers until 14 DPH and replaced by Artemia afterwards (Group B). The specific activity of brush border membrane enzymes (alkaline phosphatase and aminopeptidase N) increased with combination of rotifers and Artemia in larval diet (Group E), indicating a more efficient functionality of digestive structures. The groups fed only with rotifers till 17 DPH (Group A) (38 ± 4.07%) and larvae fed with rotifers till 14 DPH followed by feeding with Artemia till 17 DPH (Group B) (36 ± 5.25%) showed significantly (P<0.05) lower survival rates than the other groups (54-67%). The group fed only with rotifers (Group A) showed significantly lower specific growth rate (SGR) than the other groups, and the highest SGR was found in the group fed with combination of rotifers and Artemia after 3 day rotifer feeding (Group E). The highest standard length (8.32 ± 0.48 mm) was obtained by combined feeding of rotifers and Artemia after 3 day of initial rotifer feeding. Combination of rotifers and Artemia from 8 DPH (Group E) could be considered a more appropriate diet for first feeding pikeperch larvae compared with later introduction of Artemia, as indicated by the higher expression of genes and activities of digestive enzymes. Our findings provide new insight into the effect of temporal sequence of rotifers and Artemia on the expression of genes and activities of digestive enzymes in pikeperch larvae.

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Use of Lactic Acid Bacteria During Pikeperch (Sander lucioperca) Larval Rearing

Cited by 8 publications

References 52 publications

Taurine supplement improved growth performance and digestive capacity of pikeperch larvae

Taurine supplement improved growth performance and digestive capacity of pikeperch larvae

Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture

Effects of First Feeding Regime on Gene Expression and Enzyme Activity in Pikeperch (Sander lucioperca) Larvae

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