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Economics of Fish Production in Paddy Fields in Bangladesh

Hafzur Rahman
Department of Fisheries Management, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Jabed Ali Mirza
Graduate Training Institute, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Amir Hossain
Department of Fisheries Biology and Genetics, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abdulla-Al-Asif
Department of Aquaculture, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh5Department of Fisheries and Marine Bioscience, Faculty of Biological Science and Technology, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Emdadul Haq
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Palas Chwakravorty
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Mizanur Rahman
eikh Fajilatunnesa Mujib Science and TechnologDepartment of Basic Science, Sheikh Fajilatunnesa Mujib Fisheries College (Bangamata Shy University), Jamalpur, Bangladesh

Abstract/ Executive Summary:

This study was conducted to assess the profitability of fish production in paddy fields in the village of Kunia and Chandora, under Gacha union in Gazipur sadar upazila in Gazipur district. Primary data were collected from 15 fish farmers for the study during the period from June to November, 2016. Production performance of three stocking packages was compared. CFP-1 package contained Thai sarpunti (24700/ha) + Tilapia (6175/ha); CFP-2 comprised of Thai sarpunti (24700/ha) + Common carp (6175/ha); while CFP-3 was represented by Thai sarpunti (24700/ha) + (Tilapia (6175/ha) + Common carp (6175/ha). Both tabular and functional analyses were used to achieve the objectives of the study. Fish productions in paddy fields are a profitable business. The total cost of fish production under three selected stocking plans such as CFP-1, CFP-2 and CFP-3 were estimated to be Tk. 73085, Tk. 83459 and Tk. 86928 per ha, respectively. The corresponding total gross return (Tk./ha) was Tk. 209777, Tk. 274170 and Tk. 262721, respectively. The benefit-cost ratio (BCR) was estimated to be 2.87, 3.28 and 3.02 for package-1, package-2 and package-3, respectively. Returns over per taka investment (NR/Tk.) were found to be 1.32, 1.69 and 1.42 for the above fish culture packages. Cobb-Douglas production function analysis indicated the positive contribution of fish fingerlings, fertilizer, fish feed and lime on the total income and farm productivity, while human labor and bank interest rate decreased the farm income.The values of R2 were 0.775, 0.739 and 0.812 for CFP-1, CFP-2 and CFP-3, respectively. About 77.5 percent, 73.9 percent and 81.2 percent of the variation in yield and gross return of fish production in paddy fields could be explained by the multiple regression equations. Fish production in paddy fields is economically profitable, viable and environmentally friendly. The farmers may undertake fish culture in paddy fields if suitable paddy fields are available.

Keywords: Economics; Fish production; Paddy fields; Integrated aquaculture

Location: Gazipur sadar upazila in Gazipur district

Start Date: 00-06-2016

End Date: 00-11-2016

Program Area: Socio-economic and Policy

Commodity: Fish, Rice

Objectives:

The main objectives of this study are to determine the socio-economic profile of the farmers practicing fish culture in the paddy field; to investigate the costs and returns and the relative profitability of fish production in paddy fields.

Methodology:

Study area and periods: The present study was conducted in village Kunia and Chandhora under Gacha union in Gazipur sadar Upazila in Gazipur district. The researchers collected data during the period from June through November, 2016. 2.2. Sampling techniques: The farmers hereinafter designated as “Contact farmer” were motivated to undertake fish culture in a paddy field under three selected packages. The fish culture packages were (1) Thai sarpunti + Tilapia (2) Thai sarpunti + Common carp and (3) Thai sarpunti + Tilapia + Common carp. A total of 15 contacted farmers were selected to practice the above packages. Five plots were assigned for each package. Besides these, some other farmers undertook fish culture in paddy fields with their own initiatives. Data were collected from those farmers for Cobb-Douglass Production Function Analysis only. 2.3. Research design: Fifteen rice plots (5 plots per package) were purposively selected to culture fish. There were three treatments each with three replications. Treatment 1 was a combination of Thai sarpunti (24700/ha) and Tilapia (6175/ha); treatment 2 was a combination of Thai sarpunti (24700/ha) and Common carp (6175/ha) lastly treatment 3 was a combination of Thai sarpunti (24700/ha) and Tilapia (6175/ha) along with Common carp (6175/ha). 2.3.1. Plot preparation lot sizes were variable ranging from 15-20 decimal. Most of the plots were surrounded by homestead from two sides and one side was bounded by kacha road and the other open side was blocked by creating a dike up to three feet from the plot bed. The aquatic weed from each plot was removed manually. Lime was applied to the plot at the rate of 247 kg/ha. Cow dung or poultry excreta was applied at the rate of 1235kg/ha. Upon accumulation of rainwater up to a depth of about 1-2 feet, urea and triple superphosphate was added to the experimental plot at the rate of 24.7 kg and 12.35 kg per hectare, respectively. TSP was soaked in water before applying it to the plots. After the development of the blue-green color of water phostoxin tablets (25 tablet/ha) were applied to each plot to destroy the undesirable animals. One week after administration of phostoxin each plot was stocked with specific fish fingerlings. The fingerlings were acclimatized before releasing them in the concerned plots. Fingerling sized was 2-3 inches. 2.3.2. Farm management: After stocked fish in each plot, rice bran was supplied to the fishes at 1% of the body weight. The feeding rate was adjusted based on monthly sampling. Outlet pipe was installed in a suitable place in one of the dike to allow the excess water to flow out. Predatory animals such as snakes and frogs were killed as soon as they were seen.2.3.3. Monthly sampling: The growth rate and health condition of the stocked fishes were monitored by monthly sampling. For this purpose cast net was used. Length (mm) and weight (g) of at least 10 fishes belonging to each species were recorded which served as a basis for adjustment of feeding rate.2.3.4. Fish harvest The fishes were harvested during the middle of November. At the time of harvest proper record was maintained regarding final body weight, size and number as well as the amount of total harvested fishes. Species wise sale record was also maintained to carry out the financial analysis.2.4. Processing, tabulation and analysis of data After the collection of primary data from the study areas, the collected data were summarized and scrutinized. Finally, tabulated data were analyzed and condensed by using the range, average, and percentage through MS Excel and SPSS to interpret the result. 2.4.1 Analytical techniques 2.4.1.1. Tabular analysis: Tabular technique is the technique that is commonly followed to find out the crude association or differences between variables and output. Data were presented mostly in the tabular form. This form is simple in the calculation, widely used and easy to understand. Some statistical measures, like average, percentage and ratios were calculated.

Source of Information: Asian J. Med. Biol. Res. 2017, 3(3), 379-390;

Article Link (Online Journal): doi: 10.3329/ajmbr.v3i3.34528

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Fish production in paddy fields is economically profitable, viable, and environmentally friendly. The farmers may undertake fish culture in paddy fields if suitable paddy fields are available. Fallow lands that remain underwater during the rainy season may be brought under fish culture programs. Further research should be conducted to find out a suitable and cost-effective fish culture package for paddy fields.

Knowledge Management: Journal