ISSN:
1365-2095
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
The intestinal absorption and tissue distribution of D(U14C)-glucose (14C-glc), 3-O-methyl-D(U14C)-glucose (14C-OMG) and L(U14C)-isoleucine (14C-ile) were studied in rainbow trout, Oncorhynchus mykiss, using a forced-feeding technique. The appearance of radioactivity in faeces, blood, liver, white muscle and brain was monitored over 48 h. The recoveries of radioactivity 48 h postfeeding in the fish tissues studied were 36, 57 and 48% for 14C-glc, 14C-ile and 14C-OMG, respectively. White muscle and liver contained most radioactivity on the whole tissue basis. Concentrations of 14C-glc and its derivatives in the liver and the brain exceeded those of 14C-ile and its derivatives, but the reverse was found in the white muscle. These differences may reflect differences in the metabolism of glucose and isoleucine. All tissues studied showed some differences in the accumulation of 14C originating from 14C-OMG and 14C-glc. As 14C-OMG is a nonmetabolizable glucose analogue, these differences may be the result of glucose metabolism at tissue level.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1046/j.1365-2095.2001.00179.x
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