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^printed in great britain calcium metabolism in bullfrog tadpoles (rana catesbeiana) (1980).
| Content Provider | CiteSeerX |
|---|---|
| Author | Baldwin, F. Bentley, P. J. |
| Abstract | Non-feeding bullfrog (Rana catesbeiana) tadpoles can maintain their body Ca concentration in artificial pond waters containing a range of Ca concen-trations. The rate of uptake of 45Ca increases when the tadpoles are pre-adapted to a low-Ca pond water and declines when they are pre-adapted to high Ca. Measurement of drinking rate shows that drinking could account for only 5 % of the influx. From in vitro experiments, it is estimated that about 70 % of the influx occurs accoss the gills, and about 25 % through the skin. Calcitonin decreases accumulation of 45Ca while i,25-(OH)2 vitamin D3 increases it; parathyroid hormone was without effect. Efflux of 45Ca was unchanged by calcitonin or parathyroid hormone. |
| File Format | |
| Publisher Date | 1980-01-01 |
| Access Restriction | Open |
| Subject Keyword | Rana Catesbeiana Drinking Rate Show High Ca Low-ca Pond Water Vitro Experiment Ca Concen-trations Vitamin D3 Non-feeding Bullfrog Artificial Pond Water Body Ca Concentration |
| Content Type | Text |
