Vitamin D 3-induced hypercalcaemia in male catfish, Clarias batrachus

Abstract

Injection of vitamin D 3 (5000 IU/100 gm body weight) induces hypercalcaemia in the male catfish Clarias batrachus. This response is accelerated when the fish are maintained in a calcium-rich environment. The tendency toward normocalcaemia is faster in vitamin D 3-administered animals as compared to the animals which are not given vitamin D 3 and are kept only in a calcium-rich environment.