Impact of Aquathol on blood urea level of Heteropneustes fossilis: an Indian freshwater cat-fish

Abstract

The present work was undertaken to assess the impact of sublethal concentrations of Aquathol, a weedicide on blood urea level of Heterpneustes fossilis. Fishes exposed to various sublethal concentrations of aquathol (0.5 ppm, 1.0 ppm, 1.5 ppm and 2.0 ppm) exerted a marked significant increase in the level of blood urea with the increase of concentrations as well as the increasing time intervals, i.e. from 24 hrs upto 96 hrs. It might be due to its damaging effects on the renal tubules. Thus, urea estimation is mainly useful for the diagnosis of renal damage.