Journal ArticleDOI
Carbohydrates in fish nutrition: effects on growth, glucose metabolism and hepatic enzymes
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TLDR
The focus then shifts to selected aspects of hormonal regulation of carbohydrate metabolism and dietary carbohydrates and their variable effects on glycogen and glucose turnover, and the correlation of dietary carbohydrates with fish health.Abstract:
The utilisation of dietary carbohydrates and their effects on fish metabolism are reviewed. Details on how dietary carbohydrates affect growth, feed utilisation and deposition of nutrients are discussed. Variations in plasma glucose concentrations emphasizing results from glucose tolerance tests, and the impact of adaptation diets are interpreted in the context of secondary carbohydrate metabolism. Our focus then shifts to selected aspects of hormonal regulation of carbohydrate metabolism and dietary carbohydrates and their variable effects on glycogen and glucose turnover. We analyse the interaction of carbohydrates with other nutrients, especially protein and protein sparing, and de novo synthesis of lipids, and finish by discussing the correlation of dietary carbohydrates with fish health.read more
Citations
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Journal ArticleDOI
Glucose metabolism in fish: a review
TL;DR: The aim is to up-date carbohydrate metabolism in fish, placing it to the context of these new experimental tools and its relationship to dietary intake and it is suggested that new research directions ultimately will lead to a better understanding of these processes.
Journal ArticleDOI
Carbohydrates in fish nutrition: digestion and absorption in postlarval stages
TL;DR: This review summarizes information regarding digestion and absorption of carbohydrates in cultivated fish and reports results of studies of digestive enzymes, e.g. amylase, chitinase, cellulase and brush border disaccharidases, which appear to be molecularly closely related and to have characteristics comparable to mammalian amylases.
Journal ArticleDOI
Nutritional regulation of hepatic glucose metabolism in fish
TL;DR: Overall, data strongly suggest that the liver of most fish species is apparently capable of regulating glucose storage, and the persistent high level of endogenous glucose production independent of carbohydrate intake level may lead to a putative competition between exogenous glucose and endogenous glucose as the source of energy.
Journal ArticleDOI
Utilisation of dietary carbohydrates in farmed fishes: New insights on influencing factors, biological limitations and future strategies
TL;DR: This review intends to put together pieces of the puzzle of dietary carbohydrate utilisation in fish based on new insights gained with respect to the various biological, nutritional and environmental factors influencing carbohydrate use, and promising future approaches to augment carbohydrate use in fish.
Journal ArticleDOI
Protein and amino acid nutrition and metabolism in fish: current knowledge and future needs
Sadasivam Kaushik,Iban Seiliez +1 more
TL;DR: In fish, despite low muscle protein synthesis rates, the efficiency of protein deposition appears to be high, and research on specific signalling pathways involved in protein synthesis and degradation have been initiated to elucidate the reasons for high dietary protein/amino acid supply required and their utilization.
References
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Journal ArticleDOI
Dietary carbohydrate utilization in cod (Gadus morhua): metabolic responses to feeding and fasting
TL;DR: It is suggested that insulin secretion in cod is affected both by plasma FAA and glucose and that cod meets food deprivation by slowing down metabolism.
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Hormonal control of gluconeogenesis in rainbow trout hepatocytes: regulatory role of pyruvate kinase
TL;DR: The results indicate that insulin and glucagon are involved in the regulation of hepatic gluconeogenesis in trout and that their effects are mediated, at least partly, through the control of pyruvate kinase activity.
Journal ArticleDOI
Hepatic enzyme adaptation to different dietary carbohydrates in juvenile tilapiaOreochromis niloticus xO. aureus.
Jui-Hsing Lin,Shi-Yen Shiau +1 more
TL;DR: Results suggest that lipogenic enzyme activity can adapt to dietary carbohydrates in the fish liver, and changing the diet from the glucose to the starch increased these enzyme activities in fish liver.
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Changes in activities of hepatic enzymes related to carbohydrate metabolism of fishes in glucose and insulin-glucose tolerance tests.
Masayuki Furuichi,Yasuo Yone +1 more
TL;DR: Activities of glycolytic enzymes (hexokinase and PFK) and gluconeogenic enzymes (G6Pase and FDPase) increased after the administratin of glucose in all species and no significant differences between the fish species were recognized.
Journal ArticleDOI
Influence of diet on in vitro and in vivo rates of fatty acid synthesis in coho salmon [Oncorhynchus kisutch (Walbaum)].
TL;DR: The major site of fatty acids synthesis in coho salmon appears to be the liver, and dietary alterations influence the rate of fatty acid synthesis in the liver.