Abstract
The bile acid composition and metabolism of rainbow troutSalmo gairdneri has been investigated by thin layer chromatography, gas liquid chromatography, and radio gas liquid chromatography methods. For this purpose gallbladder bile was collected from fed fish at 6 and 13 months and from starved fish at 12 months of age. Cholic acid was found to be the main component and constituted over 85% of total. Chenodeoxycholic acid accounted for 14% or less and the 3α, 12α-7-keto- and 7α, 12α-3-keto-5β-cholanoates for 1% or less of total. The bile acids were conjugated mainly with taurine, only small amounts of glycocholic acid being detected. Ca. 5% of the taurocholate was sulfated, as were trace amounts of cholic and glycocholic acids. The size of the bile acid pool was found to increase in the older fish and to decrease in starved fish. Unlike mammalian livers, the livers of the trout converted radioactive chenodeoxycholic acid into cholic acid.
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Denton, J.E., Yousef, M.K., Yousef, I.M. et al. Bile acid composition of rainbow trout,Salmo gairdneri . Lipids 9, 945–951 (1974). https://doi.org/10.1007/BF02533816
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DOI: https://doi.org/10.1007/BF02533816