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(Heteropneustes Fossilis) in Different Stock- Ing Densities with GIFT (Oreochromis Niloticus) and Thai Sharpunti (Bar- Bonymus Gonionotus) in Ponds

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(Heteropneustes Fossilis) in Different Stock- Ing Densities with GIFT (Oreochromis Niloticus) and Thai Sharpunti (Bar- Bonymus Gonionotus) in Ponds 9 JFL S | 2018 | V ol 3(1) | Pp 9-15 Research Article Production of Stinging Catfish (Heteropneustes fossilis) in different stock- ing densities with GIFT (Oreochromis niloticus) and Thai Sharpunti (Bar- bonymus gonionotus) in ponds Azhar Ali1, M. Rafiqur Rahman2*, M. Jahangir Alam3, A. Ahmed Nishat2, M. Fazla Rabbi2, M. Anamul Haque4, Rafiul Islam2, M. Rafiqul Azam3 and M. Ashik Ullah2 1Bangladesh Fisheries Research Institute, Mymensingh-2201, Bangladesh 2Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh 3Department of Fisheries, Ministry of Fisheries and Livestock, Bangladesh 4Spectra Hexa Feeds Limited, Bangladesh ABSTRACT ISSN: 2456- 6268 Stinging Catfish (Heteropneustes fossilis) was cultured with Genetically Improved Farmed Tilapia-GIFT (Oreochromis niloticus) and Thai Shrpunti (Barbonymus goniono- ARTICLE INFO tus) in ponds over a period of 6 months from 15 March to 15 September 2017 to estimate Received: 17 January 2018 the production of stinging catfish at different stocking densities. Six earthen ponds (0.06 Accepted: 19 Aril 2018 Available online: 12 June 2018 ha) were divided into three treatments. Three treatments differing in stocking densities of H. fossilis such as 148, 200 (T1), 172,900 (T2) and 197,600 (T3) per hectare were tested with two replicates each. However, O. niloticus (4940 individuals/ha) and B. gonionotus KEYWORDS (2470 individuals/ha) were stocked @ of 4940 and 2470 individuals/ha with H. fossilis. Densities Mega commercial floating fish feed was used in ponds which containing 32 to 36% (pre- GIFT Tilapia starter 36%, starter and grower 32%) crude protein. The water quality parameters were Catfish recorded within the acceptable range for fish culture. The final weight of H. fossilis was Stocking found 59.70±1.4g in T1 which showed the better performance followed by T2 and T3. Thai Sharpunti Significantly (p < 0.05) better FCR and survivals was found in T1 followed by T2 and T3. * Considering the survivals, the highest gross production (kg/ha) of H. fossilis was recorded CORRESPONDENCE [email protected] in T2 (7415.12±214.22) followed by T1 (7133.74±120.39) and T3 (6529.45±62.12). But highest benefit was found in T1 (BDT 151, 7771) followed by T2 (BDT 125, 5470) and T3 (BDT 636,779) which indicate T1 is more efficient and profitable culture technology to produce H. fossilis in ponds. So, it could be concluded that, H. fossilis might be sug- gested to culture in ponds with O. niloticus and B. gonionotus at the stocking density of 148,200 individuals per hectare. © 2018 The Authors. Published by JFLS. This is an open access article under the CC BY-NC-ND li- cense (https://creativecommons.org/licenses/by-nc-nd/4.0). INTRODUCTION Fisheries sector plays a very important role in the na- their derelict and marshy nature (Saokat et al., 2017). But it tional economy having a share of 3.69% in national GDP, should be used in fish culture technologies emphasis on almost one-fourth (22.60%) in agricultural GDP. About short life cycle, faster growth, high market demand and re- 60% of total required animal protein comes from fish quire low inputs, such as shing (Heteropneustes fossilis), (FRSS, 2015). Bangladesh is ranked fourth position in In- GIFT(Oreochromis niloticus), Thai sharpunti (Barbonymus land fishery production just after China, India and Myanmar gonionotus) etc. (Gupta 1991; Borthakur et al., 2007; Shah and fifth position in closed waters (FAO, 2014). About 1.5 et al., 2008 and Anani et al., 2017). million people are directly employed by this sector (DOF, H. fossilis is an indigenous stinging cat fish of South- 2012). Many ponds in our country have lost their water re- East-Asia which have the above mentioned characteristics tention capacity day by day and retained water only 5 to 6 (Khan et al., 2003 and Kohinoor et al., 2012). The species is months in a year. These water bodies are being used mainly not only recognized for its delicious taste and market value for household activities but some are still abandoned due to but is also highly esteemed from nutritional and medicinal 10 properties of view (Chakraborty and Nur, 2012). It remains At the stocking, fingerlings of H. fossilis and other fishes high amount of iron (226 mg/100 g) and fairly high content were stocked as per experimental design (Table-1). Fish are of calcium compared to many other freshwater fishes (Saha being fed commercially available Mega fish feeds at the rate and Guha, 1939). It is characterized by an accessory respira- of 9 to 5% body weight per day. tory organ (air breathing organ) which enables it to exist for Table 1: Layout of the design with species composition and hours when out of water or in indefinitely oxygen-poor wa- stocking density under three treatments ter and even in moist mud (Ali et al., 2014). H. fossilis is T Species composition Stocking densi- Average known to be carnivorous, but under culture condition it re- ties weight (g) sponds to supplementary feeding with slaughter house ((No of fish/ha) waste, trash fishes, silk worm pupae, oil cake, rice bran, compost, bio-gas slurry in various proportions and combina- T1 Shing (H. Fossilis) 148200 3.15±0.06a tions (Dehadrai, 1978). So, this species is very potential in GIFT (O. Niloticus) 4940 5.18±0.06a seasonal water bodies of Bangladesh. But in recent years, Silver barb (B. go- 2470 6.11±0.13a the fish has become gradually been endangered as the natu- nionotus) a ral habitats and breeding grounds of this fish has been se- T2 Shing (H. Fossilis) 172900 3.13±0.05 a verely degraded due to over exploitation, ecological chang- GIFT (O. Niloticus) 4940 5.21±0.16 a es, reduction of water bodies, application of pesticides in Silver barb (B. go- 2470 5.95±0.07 rice cultivation, release of chemical effluents from industrial nionotus) T3 Shing (H. Fossilis) 197600 3.10±0.12a plants and hydrological changes due to construction of flood GIFT (O. Niloticus) 4940 5.10±0.08a control infrastructure (Khan et al., 2003 and Kohinoor et al., a 2012). International Union for Conservation of Nature Silver barb (B. go- 2470 5.86±0.62 nionotus) (IUCN) recorded this species as one of the threatened spe- Values in the same column for same species having the same superscript cies in Bangladesh due to recent climate changes and de- are not significantly different (p > 0.05); T= Treatments structive fishing practices in open water system (Khan et al., 2000). To protect this fish from extinction and to conserve the natural stocks, development of culture technology for From the second day of stocking, the fingerlings were Shing (H. fossilis) is essential. fed two times at 9:30am and 5:00pm daily with Mega pre- starter fish feed which containing 36% protein for the first Since GIFT and Thai sharpunti reaches to market size two months. For the second two months used Mega starter as well as 4 to 5 months, so farmers can get quick return fish feed containing 32% protein and the rest of two months culturing these fishes. But lack of proper knowledge of ap- used MEGA grower fish feed which containing 32% pro- propriate culture techniques and unavailability of quality tein. Fingerlings were sampled fortnightly by using a ber jal seeds of these species in time are found to be some of the and weight of fishes were measured by using a portable major constrains at present time to disseminate the Bangla- balance (Model HI 400EX) for the assessment of growth, desh Fisheries Research Institute (Saokat et al., 2017). So it health condition and feed adjustment. is also very essential to estimate the cost benefit cost ratio of the culture technologies to the farmer so that they can easily Water quality parameters viz. temperature, dissolved understand how much of benefit they can get and more en- oxygen (DO), water pH, transparency and total ammonia couraged to culture H. fossilis with other faster grower and (NH3) were observed and recorded every fifteen days inter- market demand species. Hence, the present study has been val between 09.00 and 10.00 hr. Temperature (°C) and dis- undertaken to estiamte the production of Stinging Catfish solved oxygen (ppm) were determined directly by a digital (H. fossilis) in different stocking densities with farmed ti- water quality analyzer Hanna DO meter (Model-HI 9146, lapia (GIFT) and Thai sharpunti along with assessing the Romania), pH by a digital pH-meter (Milwaukee pH meter, water quality parameters Model-PH55/PH56, USA), and transparency (cm) by a sec- chi disc and ammonia by using test kit. Total alkalinity was MATERIALS AND METHODS estimated following the standard method of Stirling (1985) The experiment was conducted in six uniform farmer and APHA (1992). Quantitative and qualitative estimates of owned earthen ponds situated at near to Bangladesh Agri- plankton in the experimental ponds were also taken fort- cultural University Campus, Mymensingh, Bangladesh. The nightly. Ten liters of water, collected from different loca- experiment was continued for a period of 6 months from 15 tions and depths of each pond were filtered through fine- March to 15 September 2017. The ponds were rectangular meshed plankton net (25 μm) to obtain a 50 ml sample. The in shape and the surface area of each pond was 15 decimal samples were preserved immediately with 5% buffered for- (0.06 ha) with an average depth of 5 feet. Water of the ex- malin in plastic bottles. Plankton density was estimated by perimental ponds was drained out and all fish species and using a sub-sampling technique. A Sedgwick-Rafter (S-R) aquatic vegetations were removed.
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