Rodgers D W
Health Phys. 1986 Jan;50(1):89-98. doi: 10.1097/00004032-198601000-00008.
Juvenile rainbow trout, Salmo gairdneri, were maintained in tritiated water, fed a tritiated diet or both, and the specific activity of 3H in the fish was determined during and following 3H exposure. Tissue water 3H-equilibrated rapidly with the ambient water (estimated half-life less than 30 min) and maintained a steady-state specific activity similar to ambient. In contrast, the steady-state specific activity of organically bound 3H was significantly affected by that of the diet. The steady-state specific activity of organically bound 3H of trout maintained in tritiated water but fed non-tritiated diets was approximately 20% of that of the ambient water. This steady-state specific activity was achieved relatively quickly (half-life approximately 1 d) and presumably reflects the exchangeable H of the fish. For trout fed a tritiated diet, in either tritiated or non-tritiated water, steady-state specific activities of organically bound 3H were on the order of 80% of that of the diet. These steady-state specific activities were reached much more slowly (estimated half-lives of 18-32 d) and are likely to represent the accumulation of non-exchangeable 3H in the organic material of the trout.
将幼年虹鳟鱼（Salmo gairdneri）饲养在含氚水中、投喂含氚饲料或两者同时进行，然后在氚暴露期间及之后测定鱼体内3H的比活度。组织水的3H与环境水迅速达到平衡（估计半衰期小于30分钟），并保持与环境相似的稳态比活度。相比之下，有机结合3H的稳态比活度受饲料的显著影响。饲养在含氚水中但投喂非含氚饲料的虹鳟鱼，其有机结合3H的稳态比活度约为环境水的20%。这种稳态比活度相对较快达到（半衰期约为1天），可能反映了鱼体内可交换的氢。对于投喂含氚饲料的虹鳟鱼，无论饲养在含氚水还是非含氚水中，有机结合3H的稳态比活度约为饲料的80%。这些稳态比活度达到的速度要慢得多（估计半衰期为18 - 32天），可能代表了虹鳟鱼有机物质中不可交换3H的积累。
