Culture Feasibility, Domestication and Breeding Potentiality of Penaeus indicus in the Southwest Region of Bangladesh

Abstract

A preliminary observation was conducted on the culture potentiality, domestication at different stocking density and breeding competency of Chaka chingri (Penaeus indicus) in southwest region of Bangladesh from February to May in 2020 on Shrimp Research Station, Bagerhat for 120 days. There were three treatments with three replication of each where stocking density varied. Among the treatments, T3 (200 nos./dec) was found more suitable with higher growth than T2 (300 nos./dec) and T1 (400 nos./dec). In regular samples of wild Chaka taken from the regions of Bagerhat, Satkhira, and Khulna, histological investigation revealed that no oocyte was discovered during the reproductive period. The explanations for why the right big shrimp could not be located. Since P. indicus needs more salinity and profundity for the growth of gonadal tissue, the ecological conditions were similarly unfavorable. In this instance, the areas that have greater salinities and shrimp of a reasonable size ought to be chosen for a breeding program. After analysis, the approximate composition of P. indicus's flesh and shell was discovered to be below average. It's because P. indicus experiences prolonged stress and an adverse body condition due to reduced salinity, which has a significant impact on feeding and growth rates along with the rate at which dietary protein is converted to meat protein. Consequently, the current study suggests carrying out a breeding program and preserving the ideal natural conditions for Chaka chingri adaptation.