Domestication of red fin mahseer (Tor tor) with supplementary feeds in captive condition in Bangladesh

Farzana Arefin,Md Fazlul Awal Mollah,Md Rafiqul Islam Sarder,Mohammad Matiur Rahman,Muhammad Shalah Uddin Kabir

doi:10.3329/jbau.v16i3.39451

Farzana Arefin, Md Fazlul Awal Mollah + Show 3 more

Open Access

https://doi.org/10.3329/jbau.v16i3.39451

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Abstract

Effects of supplementary feeds on growth, survival, and production of red fin mahseer, Tor tor (Hamilton) was assessed in captive condition under a monoculture system. Experiments were conducted for a period of 12 months where two feeds varying in protein contents were used in treatments. One laboratory formulated feed with 36.67% protein and a commercial feed with 28% protein were characterized as treatment-1 (T1) and treatment-2 (T2), respectively. At the same time water quality parameters were measured. The net increment in weight after 12 months was 671.60 g and 509.80 g in T1 and T2 respectively. The feed conversion ratio (FCR) was 4.72 and 5.26, and the specific growth rate (SGR) was 1.39 and 0.10 % day-1 in T1 and T2 respectively. In both treatments 100% fish were survived and provided the net production (kg/ha) 2807.06 and 2557.78 in T1 and T2, respectively. The water quality parameters were within the suitable range for fish culture. Between the feeds evaluated, feed with 36.67% protein (T1) proved best result considering the growth and production performance of the fish. Overall growth performance of T. tor was satisfactory; however, further research is needed. J. Bangladesh Agril. Univ. 16(3): 533–538, December 2018

Highlights

Among the fishes of family Cyprinidae, red fin mahseer T. tor is one of the most attractive fish of Bangladesh
Growth Results of different growth and production parameters are shown in Table 2 and Fig. 2
Similar finding was reported by Bista et al (2002) where T. putitora showed a faster growth from the administration of feed containing high proportion of animal origin ingredients

Summary

Introduction

Among the fishes of family Cyprinidae, red fin mahseer T. tor is one of the most attractive fish of Bangladesh. It has high demand as table fish and lure for anglers as a game fish and is potential contender for aquaculture (Haque et al 1995; Ingram et al 2005, Ogale, 2002). Domestication of mahseer in captivity will help to determine its culture potential. The present study was aimed to domesticate T. tor in captivity and to find out the appropriate supplementary feed as well as being used for livelihood of poor and ultra-poor people protein requirement for this species. T. tor has been ranked as critically endangered in Bangladesh (IUCN, 2015)

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Discussion

Conclusion