Effects of taurine supplementation in live feeds on larval rearing performance of California yellowtail<i>Seriola lalandi</i>and white seabass<i>Atractoscion nobilis</i>

Rotman, Federico; Stuart, Kevin; Drawbridge, Mark

doi:10.1111/are.12964

Cited by 19 publications

(18 citation statements)

References 37 publications

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“…These results indicate that levels of taurine of around 3.8 mg g -1 may satisfy the requirements of ABT larvae for this nutrient. In contrast, survival of larval ABT was not significantly affected by dietary taurine in the present study in contrast to several previous studies in Pagrus major and Paralichthys olivaceus (Chen et al, 2004a,b), Seriola dumerili (Matsunari et al, 2013), Nibea albiflora (Xie et al, 2015) or Seriola lalandi (Rotman et al, 2017). This is likely due to the large inter-tank variability observed in the present trial, although a lack of effect of dietary taurine has also been reported in other species such as Atractoscion nobilis (Rotman et al, 2017) and Solea Senegalensis (Pinto et al, 2010).…”

Section: Discussioncontrasting

confidence: 99%

Taurine metabolism and effects of inclusion levels in rotifer (Brachionus rotundiformis, Tschugunoff, 1921) on Atlantic bluefin tuna (Thunnus thynnus, L.) larvae

et al. 2019

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Taurine appears to be a crucial nutrient for teleosts, especially top predator species such as Atlantic bluefin tuna (Thunnus thynnus, L.; ABT). While dietary taurine supplementation has been highly recommended, there is a lack of studies on taurine assimilation and biosynthesis for this iconic species. The present study aims to provide insight into the molecular mechanisms involved in taurine biosynthesis and transport in ABT by studying tissue distribution and ontogenetic development of expression of cysteine dioxygenase (cdo), cysteine sulfinic acid decarboxylase (csad), 2aminoethanethiol dioxygenase (ado) and taurine transporter (tauT) in response to graded levels of dietary taurine supplementation. The full open reading frame (ORF) for cdo and partial sequences for csad, ado and tauT were obtained, with the translated polypeptides being 202, 176, 166 and 324 amino acids, respectively. All three showed characteristics such as cupin motifs in Cdo and predicted N-glycosylation sites in Taut that are common to these genes in other species. Phylogenetic analysis showed that the ABT sequences clustered with sequences of other teleosts, and separately from mammals and molluscs. Tissue distribution varied, with adipose tissue, kidney, white muscle and testis/brain showing highest expression of cdo, csad, ado and tauT, respectively. Whole larvae expression of csad peaked at 15 dah, whereas the other genes generally increased throughout development to show highest expression at 25 dah. The nutritional trial was carried out by feeding ABT larvae from mouth opening to 14 days after hatching (dah) with rotifers (Brachionus rotundiformis) enriched with 4 different levels of taurine: 0.0 (tau0), 0.5 (tau0.5), 1.0 (tau1), and 2.0 g taurine per 10 6 rotifers (tau2). Rotifers effectively accumulated taurine with ABT larvae fed on treatment tau2 attaining the highest concentration of taurine. However, ABT larvae fed tau1 displayed higher growth and survival, and flexion index at 14 dah, than larvae fed the other taurine levels. Larvae fed tau1 also showed generally higher expression of tauT and cdo and digestive and antioxidant enzyme genes. While this study showed that larval ABT express taurine metabolism genes, suggesting possible synthesis that could contribute to the taurine pool in the fish, larval 3 performance was enhanced by a level of dietary taurine (3.7 mg taurine g-1 rotifer) supplied by enrichment of rotifers at 1 g taurine per 10 6 rotifers.

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Section: Discussioncontrasting

confidence: 99%

Taurine metabolism and effects of inclusion levels in rotifer (Brachionus rotundiformis, Tschugunoff, 1921) on Atlantic bluefin tuna (Thunnus thynnus, L.) larvae

et al. 2019

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“…Similar results were obtained by (Rotman et al, 2016), who observed that rotifers and artemia supplemented with the organic acid taurine provided beneficial effects in terms of growth and survival in fishes with 20.1% compared to the control with 9.1% in S. lalandi larvae.…”

Section: Discussionsupporting

confidence: 88%

Seriola lalandi Larviculture with Probiotic Supplements in Mesocosm Systems

Plaza¹,

Leyton²,

Sayes³

et al. 2017

fisheries-aqua

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Abstract:The present study evaluated the survival of S. lalandi larvae cultivated in a mesocosm system (50 m 3 pool) and inoculated in submerged PVC cages with mesh walls and bottom (450 µm Swiss Nylon). The larvae were fed rotifers and artemia supplemented with the probiotic bacterium Pseudoalteromonas sp. SLP1 and the microalga Nannochloropsis gaditana. Larval survival was evaluated at the stage prior to changing the diet from live feed to pellets. Three months after feeding of the larvae with pellet, the growth (length/weight) and the specific growth rate (SGR) of the larvae supplemented with probiotics were recorded in the initial phase of the culture versus those not treated with probiotics. Higher survival was observed in larvae fed the probiotic supplement than in the control larvae (t-test=4.896, p<0.05). Larval growth in control and treatment increased, with significant differences observed during the three months. The SGR index did not present significant differences between the contol and treatment. These data indicate that after 3 months there were no differences in the growth of fish supplemented with or without probiotics. The results indicate that the addition of the microalga N. gaditana and the probiotic bacterium Pseudoalteromonas sp. SLP1 in the live feed, such as rotifers and artemia, is a good dietary alternative and improves the survival of S. lalandi larvae. The use of probiotics to optimize cultivation systems serves as an example of an ecological remediation alternative that can be applied to other cultures of commercial interest.

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“…), California yellowtail ( Seriola lalandi ) and white sea bass Atractoscion nobilis (Rotman et al . ) were fed taurine‐enriched rotifers, larval growth, survival and body taurine were also significantly improved. Supplementing microencapsulated diets with taurine may also improve marine larval performance and survival (Takeuchi et al .…”

Section: Discussionmentioning

confidence: 99%

Dietary taurine enhances growth and feed utilization in larval Nile tilapia (Oreochromis niloticus) fed soybean meal-based diets

2015

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This study was conducted to evaluate the effects of dietary taurine on growth performance and feed utilization of Nile tilapia (Oreochromis niloticus) larvae. Four plant protein-based, isonitrogenous (400 g kg À1 protein), isoenergetic (19 MJ kg À1 ) diets supplemented with four taurine concentrations (0.0, 5.0, 10.0 and 15.0 g kg À1 ; designated as T 0 , T 0.5 , T 1 and T 1.5 , respectively) were prepared. The diets were fed to triplicate groups of fish larvae (0.024 g average body weight), to apparent satiation, three times per day for 60 days. Larval growth rates and feed utilization efficiency were significantly improved with increasing supplemental taurine up to 10 g kg À1 and decreased with further taurine supplementation. The quadratic regression analyses indicated that the maximum larval performance occurred at about 9.7 g kg À1 of total dietary taurine. Fish survival was significantly lower at 15 g kg À1 dietary taurine than at other taurine levels. Body protein significantly increased, while body moisture and ash decreased, with increasing dietary taurine up to 10 g kg À1 and decreased with further taurine supplementation to 15 g kg À1 . Body lipid was not significantly affected by dietary taurine concentration. A number of body amino acids (tryptophan, arginine, histidine, leucine, isoleucine, valine, alanine, glycine, threonine and taurine) significantly increased with increasing supplemental taurine up to 10 g kg À1 and then decreased with further increase in dietary taurine levels. The rest of body amino acids were not significantly affected by dietary taurine. The present results suggest that about 9.7 g kg À1 dietary taurine is required for optimum performance of Nile tilapia larvae fed soybean meal-based diets.

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Effects of taurine supplementation in live feeds on larval rearing performance of California yellowtailSeriola lalandiand white seabassAtractoscion nobilis

Cited by 19 publications

References 37 publications

Taurine metabolism and effects of inclusion levels in rotifer (Brachionus rotundiformis, Tschugunoff, 1921) on Atlantic bluefin tuna (Thunnus thynnus, L.) larvae

Taurine metabolism and effects of inclusion levels in rotifer (Brachionus rotundiformis, Tschugunoff, 1921) on Atlantic bluefin tuna (Thunnus thynnus, L.) larvae

Seriola lalandi Larviculture with Probiotic Supplements in Mesocosm Systems

Dietary taurine enhances growth and feed utilization in larval Nile tilapia (Oreochromis niloticus) fed soybean meal-based diets

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