2018•Pesticide Research JournalRequires access

Toxic Effects of Paclobutrazol in Oreochromis mossambicus Fingerlings

Mayuri N. Ghane, H. B. Dhamagaye, S. J. Meshram, A. N. Salunkhe

Abstract

A static renewal bioassay of fungicide paclobutrazol (PBZ) against fingerlings of tilapia, Oreochromis mossambicus exposed for 96 h showed LC50 of 11.80 mgL-1. Physiological investigation of Tilapia exposed to two sub-lethal concentrations of PBZ [1/10th (1.18 mg L-1) and 1/5th of LC50 (2.36 mg L-1)] for 28 d revealed that the oxygen consumption rate and O: N ratio decreased significantly (p<0.05) while ammonia excretion rate increased significantly (p<0.05) at both the concentrations as compared to control. The sub-lethal exposure to PBZ altered these physiological parameters and exerted stress on the fingerlings.

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Key concepts: Oreochromis mossambicus, Veterinary medicine, Paclobutrazol, Biology, Toxicology, Fishery, Medicine, Fish <Actinopterygii>