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
Experimental control of stress hormone levels in fishes: techniques and applications
TL;DR: Surgical denervation of the chromaffin tissue, and the inhibition of cortisol synthesis by implantation of cortisol-laden pellets within the forebrain nuceli or by the administration of metopirone, hold the most promise for eliminating the release of catecholamines and cortisol respectively.
Journal ArticleDOI
Aspects of intermediary metabolism in salmonid fish
Michael J. Walton,Colin B. Cowey +1 more
TL;DR: This article is a somewhat brief attempt to describe aspects of the intermediary metabolism of amino acids, carbohydrates and lipids that have been reported for salmonids (predominantly).
Journal ArticleDOI
GLUT8, a Novel Member of the Sugar Transport Facilitator Family with Glucose Transport Activity
TL;DR: It is concluded that GLUT8 is a sugar transport facilitator with glucose transport activity and a hormonally regulated testicular function.
Journal ArticleDOI
The sequential mobilisation and restoration of energy reserves in tissues of Atlantic cod during starvation and refeeding
Darcey Black,R. Malcolm Love +1 more
TL;DR: The differing periods of refeeding which gave rise to maximum values of red Muscle glycogen and white muscle glycogen coincided respectively with maximum RNA/DNA ratios, suggesting that the purpose of unusually high glycogen values was to supply the energy for muscle regeneration.
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Response of rainbow trout (Salmo gairdneri) to increased levels of available carbohydrate in practical trout diets.
J. W. Hilton,James L. Atkinson +1 more
TL;DR: The results indicate that rainbow trout have a limited ability to adapt to increased dietary carbohydrate and a level in excess of 140 g/kg of the diet is not efficiently utilized.