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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Effects of acute anoxia on heart function in crucian carp: importance of cholinergic and purinergic control.
Matti Vornanen,Jarkko Tuomennoro +1 more
TL;DR: At physiological concentration, the effects of adenosine on contractile and electrical activity were relatively weak, suggesting that the purinergic system is not involved in the acute anoxia response of the crucian carp heart.
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Cyclic AMP stimulation and prostaglandin inhibition of Na transport in freshwater mussels
TL;DR: P Pondwater acclimated Carunculina texasensis and Ligumia subrostrata experienced a 230% increase in Na influx when injected with dibutyryl cyclic AMP and indomethacin, an inhibitor of prostaglandin (PG) synthetase, caused a dose dependent stimulation of Na transport.
Journal ArticleDOI
Experimental diabetes mellitus in a teleost fish. I. Effect of complete isletectomy and subsequent hormonal treatment on metabolism in the goby, Gillichthys mirabilis.
TL;DR: The establishment of this unique model of IDDM in an ectothermic vertebrate should prove valuable for future comparative studies on the role of insulin and other pancreatic factors in the regulation of metabolic and growth processes.
Journal ArticleDOI
Interactive Effects of Acute Changes in Temperature and pH on Metabolism in Hepatocytes from the Sea Raven Hemitripterus americanus
TL;DR: These patterns of adjustment of pHi following temperature and extracellular pH changes observed in sea raven hepatocytes are different than those observed in other fish species (American eel and rainbow trout).
Book ChapterDOI
8 Molecular Aspects of Pancreatic Peptides
TL;DR: The variability in the C-terminal region of GLP in fishes can be taken as an indication that selection pressure is less strong to maintain the charge and lipophilic characteristics of the C terminus.