Adaptation of Nile tilapia (Oreochromis niloticus) to different levels of dietary carbohydrates: New insights from a long term nutritional study

Boonanuntanasarn, Surintorn; Jangprai, Araya; Kumkhong, Suksan; Plagnes-Juan, Élisabeth; Véron, Vincent; Burel, Christine; Marandel, Lucie; Panserat, Stéphane

doi:10.1016/j.aquaculture.2018.07.011

Cited by 68 publications

(51 citation statements)

References 27 publications

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“…These results confirmed that fish ate well during the experiment. Interestingly, blood glucose levels of fasted fish were surprisingly low compared to data obtained in other teleosts (carnivorous trout [15] or omnivorous tilapia [16,17], zebrafish [18] or goldfish [19]) but were in accordance with results previously published by Riddle et al [6] and measured with the same glucometer reference.…”

Section: Fish Ate Well During the Nutritional Challengesupporting

confidence: 90%

“…Of note, in carnivorous fish which are poor users of dietary carbohydrates, such as trout, this fold-change reaches 3-4 [15,20]. The relatively weak increase in blood glucose level in A. mexicanus after HC diet may reflect an efficient use of digestible carbohydrates, as previously described in omnivorous fish such as the Nile tilapia [17], but in contrast with the situation in carnivorous fish such as the rainbow trout [15]. However, as for Nile tilapia, the fold-change of glycaemia between NC and HC-fed fish is lower than 2, we cannot consider that fish are hyperglycaemic in the present study.…”

Section: Plasmatic Glycaemia Is In Favour Of An Efficient Use Of Dietmentioning

confidence: 56%

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Nutritional regulation of glucose metabolism-related genes in the emerging teleost model Mexican tetra surface fish: a first exploration

et al. 2020

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Astyanax mexicanus has gained importance as a laboratory model organism for evolutionary biology. However, little is known about its intermediary metabolism, and feeding regimes remain variable between laboratories holding this species. We thus aimed to evaluate the intermediary metabolism response to nutritional status and to low (NC) or high (HC) carbohydrate diets in various organs of the surface-dwelling form of the species. As expected, glycaemia increased after feeding. Fish fed the HC diet had higher glycaemia than fish fed the NC diet, but without displaying hyperglycaemia, suggesting that carbohydrates are efficiently used as an energy source. At molecular level, only fasn ( Fatty Acid Synthase ) transcripts increased in tissues after refeeding, suggesting an activation of lipogenesis. On the other hand, we monitored only moderate changes in glucose-related transcripts. Most changes observed were related to the nutritional status, but not to the NC versus HC diet. Such a metabolic pattern is suggestive of an omnivorous-related metabolism, and this species, at least at adult stage, may adapt to a fish meal-substituted diet with high carbohydrate content and low protein supply. Investigation to identify molecular actors explaining the efficient use of such a diet should be pursued to deepen our knowledge on this species.

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Section: Fish Ate Well During the Nutritional Challengesupporting

confidence: 90%

Section: Plasmatic Glycaemia Is In Favour Of An Efficient Use Of Dietmentioning

confidence: 56%

Nutritional regulation of glucose metabolism-related genes in the emerging teleost model Mexican tetra surface fish: a first exploration

et al. 2020

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“…In the present study, the activity of lipogenic enzymes (6PGDH and FAS) in fish fed with raw form of CHO was significantly higher than those fed with cooked form of CHO (Table ). The result suggested that high efficiency use of dietary carbohydrate could be partly explained by the increase in lipogenesis (Boonanuntanasarn et al, ; Figueiredo‐Silva et al, ). Azaza et al () observed high intraperitoneal fat accompanied with higher activity of G6PD and 6PGDH enzymes in tilapia fed with a carbohydrate‐rich diet.…”

Section: Discussionmentioning

confidence: 99%

Effect of different sources and forms of dietary carbohydrates on growth performance, body indices and lipogenesis activity of striped catfish Pangasianodon hypophthalmus fingerlings

Asemani

Sepahdari²,

Pourkazemi³

et al. 2019

Aquacult Nutr

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A 12‐week feeding trial was conducted to determine a suitable carbohydrate source and form for Pangasianodon hypophthalmus. Ten isoenergetic, isonitrogenous and isolipidic diets, including five carbohydrate sources (dextrin, potato starch, wheat starch, corn starch and sago starch) and two carbohydrate forms (raw and cooked), were formulated. Results showed that specific growth rate, weight gain percentage, whole‐body lipid and 6‐phosphogluconate dehydrogenase enzyme activity of fish fed with cooked carbohydrates were significantly lower (p < .05) than those fed with raw carbohydrates (p < .05). Similarly, the fatty acid synthase enzyme activity of fish fed with the cooked form of carbohydrates was significantly lower (p < .05) than that fed with the raw form of carbohydrates except fish fed with cooked potato starch. The blood glucose level and malic enzyme activity of fish fed with cooked carbohydrate were significantly (p < .05) higher than those fed with raw carbohydrate. In summary, this study showed that cooked starch is an unsuitable dietary carbohydrate form for Pangasianodon hypophthalmus fingerlings. The raw forms of dextrin starch and potato are suitable dietary carbohydrate sources for further scientific studies on the carbohydrate utilization of P. hypophthalmus.

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“…Dietary glucose enters the liver and is catabolized through the glycolysis pathway to provide ATP, be stored as glycogen or be converted into lipids if in excess (Boonanuntanasarn, Jangprai, et al, ; Chen et al, ; Polakof et al, ). The present study showed that the increase in glycogen in the liver was correlated with the increase in dietary carbohydrate levels, which could be mediated via increased glycogenic gys2 mRNA levels and reduced glycogenolytic pygl mRNA levels.…”

Section: Discussionmentioning

confidence: 99%

“…Fish, especially carnivorous fish, tend to be poor users of dietary carbohydrates (NRC, ). Diets for herbivorous and omnivorous fish species can be formulated containing 300–500 g/kg of carbohydrates (Boonanuntanasarn, Jangprai, et al, ; Li et al, ; NRC, ). However, for carnivorous species such as yellowtail kingfish ( Seriola lalandi ), largemouth bass ( Micropterus salmoides ) and Chinese longsnout catfish ( Leiocassis longirostris ), the amount of carbohydrates included in diets is generally <200 g/kg (Booth, Moses, & Allan, ; Liu et al, ; Tan, Xie, Zhu, Lei, & Yang, ).…”

Section: Introductionmentioning

confidence: 99%

Molecular adaptations of glucose and lipid metabolism to different levels of dietary carbohydrates in juvenile Japanese flounderParalichthys olivaceus

et al. 2019

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Japanese flounder juveniles (initial body weight: 7.12 ± 0.02 g) were fed three diets containing 0, 120 and 200 g/kg of carbohydrates (C0, C120 and C200, respectively) for 10 weeks. Results showed that higher dietary carbohydrate intake enabled further deposition of glycogen and lipids in liver and muscle. The mRNA levels of glucokinase (gck), phosphofructokinase (pfkl) and hexokinase (HK) activity involved in glycolysis were significantly up‐regulated in C120 (p < .05) but showed no further up‐regulation except for gck in C200. Besides, the gluconeogenic phosphoenolpyruvate carboxykinase 1 (pck1) mRNA levels were down‐regulated significantly in fish fed the C120 (p < .05). However, further increase in dietary carbohydrate levels increased the mRNA levels and activities of enzymes involved in gluconeogenesis and lipolysis (p < .05). Additionally, plasma glucose remained unchanged in C120 (p > .05) but significantly increased in C200 group (p < .05). In conclusion, Japanese flounder was able to use carbohydrates efficiently through regulation of glucose and lipid metabolism when dietary carbohydrate was not higher than 120 g/kg, while 200 g/kg of dietary carbohydrate caused the deregulation of glucose homoeostasis.

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Adaptation of Nile tilapia (Oreochromis niloticus) to different levels of dietary carbohydrates: New insights from a long term nutritional study

Cited by 68 publications

References 27 publications

Nutritional regulation of glucose metabolism-related genes in the emerging teleost model Mexican tetra surface fish: a first exploration

Nutritional regulation of glucose metabolism-related genes in the emerging teleost model Mexican tetra surface fish: a first exploration

Effect of different sources and forms of dietary carbohydrates on growth performance, body indices and lipogenesis activity of striped catfish Pangasianodon hypophthalmus fingerlings

Molecular adaptations of glucose and lipid metabolism to different levels of dietary carbohydrates in juvenile Japanese flounderParalichthys olivaceus

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