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Performances of Three Short Cycled Fish Species in the Seasonal Ponds in Northern Bangladesh

F. M. Shofiquzzoha
Bangladesh Fisheries Research Institute, Fresh water Sub-station, Saidpur, Nilphamari 5310, Bangladesh.

D. R. Das
Bangladesh Fisheries Research Institute, Fresh water Sub-station, Saidpur,Nilphamari 5310, Bangladesh.

Abstract/ Executive Summary:

Cultural trials of short cycled species GIFT (Oreochromis niloticus), silver barb (Barbodes gonionotus) and Thai koi (Anabas testudineits) were carried out during April to June for 120 days in seasonal ponds. GIFT, silver barb and Thai koi fingerlings of 0.93, 0.46 and 0.53 g body weights were stocked at the rate of 45,000/ha in four treatments viz., T₁ = GIFT: silver barb: Thai koi at ratio 1:1:1, T₂ = silver barb: Thai koi at ratio of 1:1, T₃ = GIFT: Thai koi at ratio 1:1 and T₄ = GIFT only. The fishes were fed with rice bran, fishmeal, mustard oil cake, wheat bran, wheat flour and vitamin premixes (28.66% protein) at 3-10% body weight twice daily. The mean water temperature was 29.13 ± 0.25°C, DO, 3.81 ± 0.79 mg/l, pH, 7.46 ± 0.12; hardness, 86.42 ± 14.97 mg/l and the transparency, 27.42 ± 2.01cm. The parameters among treatments varied insignificantly. The growth for GIFT, silver barb and Thai koi ranged from 142.0 to 222.5 g, 117.0 to134.0 g and 28.0 to 38.7 g, respectively. The growth of all three species showed better when cultured together in T₁. The growth of Thai koi was observed slower while cultured with silver barb. The species wise growth among treatments of Thai koi and silver barb were insignificant, while GIFT was found to be significant. The better performance was observed in three species (GIFT, silver barb and Thai koi) as the ratio 1:1:1, with production 4,260.58 Kg/ha in 120 days with FCR 1.41 and cost benefit ratio of 1:1.32.

Keywords: Cultural trials, Silver barb, Thai koi, Short cycled, Fish, Fish production

Location: Saidpur, Nilphamari

Start Date: 00-04-2009

End Date: 00-07-2009

Program Area: Animal Health and Management

Non-commodity: Performance

Objectives:

To increase fish production through utilizing these existing ponds through concurrent cultural attempts on short cycle species.

Methodology:

The experiment was carried out on cultural trials of BFRI GIFT, silver barb and Thai koi in seasonal ponds in Saidpur, Nilphamari during April to July 2009. There were eight ponds selected both from Bangladesh Fisheries Research Institute, Freshwater substation and from the volunteer farmers' each area range of 0.034-0.058 ha. The ponds were prepared by cleaning aquatic vegetation and lime (CaO) was applied at the rate of 125 kg/ha followed by cow dung 500 kg/ha as organic fertilizer and waited for two weeks. The ponds were filled with ground water through pump and applied urea 50 kg/ha and TSP 25 kg/ha and awaited for another week to allow the water to become suitable for stocking. The fish fry of BFRI GIFT was collected from the Freshwater Sub Station, Saidpur; silver barb, from DoF (Department of Fisheries) hatchery of Parbatipur and Thai Koi, from a private hatchery of Santahar, Bogra. GIFT, silver barb and Thai koi fingerlings of 0.93, 0.46 and 0.53g body weight species were stocked at the rate of 45,000/ha with combinations in four treatments, T₁= GIFT; silver barb: Thai koi at ratio 1:1:1, T₂ = silver barb: Thai koi at the ratio of 1:1; T₃ = GIFT: Thai koi at the ratio of 1:1; and T₄= GIFT only. The fish were fed (approximate 28.66% protein) with a mixture of rice bran (39.9%), fish meal (25%), mustard oil cake (20%), wheat bran (9%), wheat flour (6%) and vitamin premixes (0.1%) at 10% of their body weight twice daily at 10.00 hr and 16.00 hr that gradually decreased fortnightly. Water quality parameters such as temperature, pH, dissolved oxygen (DO), hardness, ammonia, depth and transparency were monitored and recorded weekly, while growth of the fishes were monitored every fortnightly by using cast net. Finally fishes were harvested by dewatering the ponds. Data were compiled and growth and production was estimated quantitatively and analyzed statistically. The net profit was estimated by calculating the gross return deducts from total variable cost (TVC). However, TVC was considered by including cost of land tenure/6 month, lime and fertilizers, fencing for Thai koi to prevent escaping, fish seed and feed ingredients. Besides cost benefit ratio (CBR) analysis was done as Morrice.

Source of Information: Bangladesh Journal of Agriculture, Vol: 37(1), pp: 71-76, 2012, ISSN: 0253-5408

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results of the experiment in could be said that the polyculture of Thai koi, silver barb and GIFT could be possible in seasonal ponds potentially in northern region. the better performance was observed in three species ratio of 1:1:1, with production of 4,260.58 Kg/ha in 120 days with FCR 1.41 while the calculated cost benefit ratio was 1:1:32. However, environment of seasonal ponds could be suitable for other indigenous short cycled species like Clarias sp., Heteropneustes sp. but further research can be done.

Knowledge Management: Journal