Performance Evaluation of Growth Parameters for Mystus cavasius (Hamilton-Buchanan, 1822) in Relation to Different Stocking Densities Cultured in a FRP Tank

Abstract

The present study was undertaken to develop a practical and economically viable methodology for mass seed production and rearing of M. cavasius in a controlled management system for getting maximum production. This three-month monoculture study investigated the impact of varying stocking densities on the growth performance, survival, and water quality parameters of Mystus cavasius. The study was conducted from April-June, 2023. A Complete Randomization Design (CRD) was employed, utilizing three distinct stocking densities: 100 individuals/decimal (T1), 150 individuals/decimal (T2), and 200 individuals/decimal (T3), each with two replications.Fortnightly, measurements were taken for key water quality parameters including temperature, dissolved oxygen (DO), pH, and transparency. The results revealed significant differences (P < 0.05) between the treatments across these parameters and growth performance. Notably, the highest length and weight were observed in the T1 treatment while the lowest stocking density (T1) yielded a superior growth rate coupled with maximum survivability. In conclusion, these findings suggest that a comparatively lower stocking density for Mystus cavasius in enclosed culture systems not only enhances production but also contributes to the maintenance of optimal water quality parameters.