Economics of Tilapia Culture in Watershed Pond in Bangladesh

Abstract

With a view to assess the suitability of mono-sex Tilapia (Oreochromis niloticus) culture using downstream flow from hills by observing their growth, survival and production in watershed pond, an experiment was carried out in a commercial aquaculture farm Mrittika Fisheries, Odolia, Hathazary, Chittagong. The duration of {each} culture period was 4 months. Stocking densities of the three culture ponds were same as, 10 individuals/m 2. All the fish were of same age group having mean body weight about 1.2 gm. A commercial pellet feeds were used at the rate of 20% of body weight during first 15 days and then the feeding rate was reduced to 18%, 15%, 12%, 10%, 8%, 6%, and 5%, receptively with 15 days interval and the measured survival rate of fish was 84.33%, 77%, 72.33%, 69%, 66.33%, 65%, 63.67%, and 62.67% receptively in 15 days interval. From the economic analysis it was found that the net profit accrued out of the three ponds (1.20 hector) was (BDR=Bangladeshi Taka, 1 US$=81 BDT) BDT 547177.77, whilst the operational cost was BDT 700544.23, the rate of profit ratio obtained is 78.11% in comparison to the operational cost. The results of the specific study indicate that the culture of tilapia in the watershed ponds by using downstream water flow is exceedingly suitable even with the high stocking density. The resultant production was good with high profitability with less input of operational cost and reduced risk.

OVER-WINTERING GROWTH PERFORMANCE OF MIXED-SEX AND MONO-SEX NILE TILAPIA Oreochromis niloticus IN THE NORTHEASTERN BANGLADESH

“…Moreover, such culture of tilapia is more profitable for mono-sex than mixed-sex operations. A study conducted by Rahman et al (2012) demonstrated a 78.11% profit from mono-sex tilapia over mixed-sex tilapia in watershed ponds during the summer season in Bangladesh. In conclusion, it is possible to successfully culture mixed-sex and mono-sex tilapia during the winter period and the growth of mono-sex tilapia is significantly better (32%) than that of mixed-sex tilapia cultured in over-wintered experimental ponds.…”

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“…The cultural period and rearing seasonal periods along with factors can make the difference in production in the pond. The difference between net returns of GIFT tilapia and IMC was 160% more than of IMC net profit (Rahman et al, 2012) [43] . As per the statement by (De et al, 2012, Rahman et al, 2012 [62,43] that intensive Carp and Tilapia culture feed was the highest cost item.…”

“…The difference between net returns of GIFT tilapia and IMC was 160% more than of IMC net profit (Rahman et al, 2012) [43] . As per the statement by (De et al, 2012, Rahman et al, 2012 [62,43] that intensive Carp and Tilapia culture feed was the highest cost item. In the present study the similar kind of observation found in both GIFT tilapia and IMC poly-culture.…”

Potentiality of ginger extract as natural preservative for raw tilapia fish ( Oreochromis mossambicus ) during storage at refrigerated temperature

“…Among the progressive cultured species of fishes, tilapia is comparatively popular, which is produced and consumed widely in Asian countries (Prabu et al, 2019). In Bangladesh, tilapia species were first introduced from Thailand in 1954 (Rahman et al, 2012). The culture of these species helps a huge community in terms of livelihood, raises their income, and helps in mitigation of poverty.…”