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Quantifying the dietary potassium requirement of juvenile hybrid tilapia (Oreochromis niloticus×O. aureus)

Published online by Cambridge University Press:  09 March 2007

Shi-Yen Shiau  and
Jia-Fen Hsieh
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Abstract

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An 8 week feeding trial was conducted to determine the dietary K requirement for juvenile hybrid tilapia (Oreochromis niloticus × O. aureus). Purified diets with eight levels (0, 1, 2, 3, 4, 5, 7, 10 g/kg diet) of supplemental K were fed to tilapia. Each diet was fed to three replicate groups of fish initially weighing a mean value of 0.77 (SE 0.01) g/fish in a closed, recirculating rearing system. Weight gain was higher (P<0.05) in fish fed the diets supplemented with 2, 3 and 4 g K/kg diet than in fish fed diet with 10 g K/kg diet and the unsupplemented control diet. Gill Na+-K+ ATPase activity was highest in fish fed the diets supplemented with 1–3 g K/kg diet, followed by fish fed the diet with 5 g K/kg diet and lowest in fish fed the diet with 10 g K/kg diet. Whole-body K content in fish were generally increased as the dietary K supplementation level increased. Analysis by polynomial regression of weight gain and gill Na+-K+ ATPase activity and by linear regression of whole-body K retention of the fish indicated that the adequate dietary K concentration for tilapia is about 2–3 g/kg diet.

Keywords

PotassiumFishTilapia
Type
Research Article
Information
British Journal of Nutrition , Volume 85 , Issue 2 , February 2001 , pp. 213 - 218
Copyright
Copyright © The Nutrition Society 2001

References

Association of Official Analytical Chemists(1995) Official Methods of Analysis.16th ed. Arlington, VA: AOAC.Google Scholar
Bentley, PJ (1990) Unidirectional fluxes of Na+, Cl- and water in fingerling channel catfish, Ictalurus punctatus. Comparative Biochemistry Physiology 97A, 195–199x.CrossRefGoogle Scholar
Bieri, JG (1977) Potassium requirement of the growing rat Journal of Nutrition 107, 1394–1398.CrossRefGoogle ScholarPubMed
Chou, BS & Shiau, SY (1999) Both n-6 and n-3 fatty acids are required for maximal growth of juvenile hybrid tilapia. North American Journal of Aquaculture 61, 13–20.2.0.CO;2>CrossRefGoogle Scholar
De #Renzis, G, Bornancin, M (1984) Ion transport and gill ATPases Fish Physiology, vol. XB, pp. 65–129 [WS, Hoar and DJRandall, editors Randall, editors]. New York, NY: Academic Press.Google Scholar
Hwang, PP, Sun, CM & Wu, SM (1988) Characterization of gill Na+-K+-activated adenosine triphosphate from tilapia Oreochromis mossambicus Bulletin of the Institute of Zoology Academia Sinica 27, 49–56.Google Scholar
Hwang, PP, Sun, CM & Wu, SM (1989) Changes of plasma osmolality, chloride concentration and gill Na+-K+-ATPase activity in tilapia Oreochromis mossambicus during seawater acclimation. Marine Biology 100, 295–299.CrossRefGoogle Scholar
Jensen, AH, Terrill, SW & Becker, DE (1961) Response of the young pig to levels of dietary potassium Journal of Animal Science 20, 464–467.CrossRefGoogle Scholar
Leach, RM, Dam, R, Ziegler, TR & Norris, LC (1959) The effect of protein and energy on the potassium requirement of the chick Journal of Nutrition 68, 89–100.CrossRefGoogle ScholarPubMed
McCormick, SD (1995) Hormonal control of gill Na+-K+-ATPase and chloride cell function. In Fish Physiology vol. XIV, 285–315. [Wood, CM & Shuttleworth, TJ, editors]. New York,NY: Academic Press.Google Scholar
Mayer-Gostan, N & Naon, R (1992) Effects of ambient ion concentrations on gill ATPase in fresh water eel, Anguilla anguilla. Fish Physiology Biochemistry 10, 75–89.CrossRefGoogle ScholarPubMed
National Research Council (1983) Nutrient Requirements of Warmwater Fishes and Shellfishes. Washington, DC: National Academy of Science.Google Scholar
New, MB (1999) Global Aquaculture: current trends and challenges for the 21st century World Aquaculture 30, 8–13.Google Scholar
Shearer, KD (1988) Dietary potassium requirement of juvenile chinook salmon Aquaculture 73, 119–129.CrossRefGoogle Scholar
Shiau, SY & Chin, YH (1999) Estimation of the dietary biotin requirement of the juvenile hybrid tilapia Oreochromis niloticus × O. aureus Aquaculture 170, 71–78.CrossRefGoogle Scholar
Shiau, SY & Liu, JS (1994) Quantifying the vitamin K requirement of juvenile marine shrimp (Penaeus monodon) with menadione. Journal of Nutrition 124, 277–282.CrossRefGoogle ScholarPubMed
Shiau, SY & Lo, PS (2000) Dietary choline requirements of juvenile hybrid tilapia, Oreochromis niloticus × O. aureus Journal of Nutrition 130, 100–103.CrossRefGoogle Scholar
Wilson, RP & El, Naggar G (1992) Potassium requirement of fingerling channel catfish, Ictalurus puntatus Aquaculture 108, 169–175.CrossRefGoogle Scholar
Zeitoun, IH, Ullrey, DE & Magee, WT (1976) Quantifying nutrient requirement of fish Journal of the Fisheries Research Board of Canada 33, 167–172.CrossRefGoogle Scholar