Browsing by Subject "Fish farming"
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Item Identification and Domestication of Native Ornamental Fishes of Begnas Lake, Pokhara, Nepal(Department of Zoology, 2021) Sapana, ChandNative fishes have great value as an ornamental fish in Nepal as well as in the global fair. Most of the ornamental fish species of Nepal are imported from India and Thailand. The main goal of this experiment was to identify and domesticate the indigenous ornamental fishes for commercial production. Begnas area, Pokhara was selected as a study site as it has different small indigenous fish species which might have great potential as ornamental fish. The study was carried out from January to August 2020. Native fishes were collected from outlets and irrigation canal of Begnas Lake by using a cast net. Five fish species Puntius conchonius, Puntius sophore, Barilius barna, Danio devario and Danio rerio were identified and found suitable for ornamental purpose. Puntius sophore and Danio devario were domesticated in the aquarium during the experiment period. Survivability of these fish species was low during the winter season; at the same time, they could adapt to any kind of food. Danio devario was selected for the breeding purpose; and among all, 33 individuals were selected and placed in different condition (in the aquarium with heater and aerator, in the outer tank exposed to direct sunlight, tank having continuous water flow without sunlight and in an open artificial pool) with 40% CP and blood worms and maintaining the proper water quality. Out of all different conditions, environment that was artificially made pool with enough sunlight was found to be suitable for breeding. Their breeding was also influenced by the environmental condition since they bred one month later than their regular breeding periods in captive condition. Danio devario bred in last week of August in the rainy day and then gradually increasing the temperature 27-28℃, pH7 to 8 and DO 5 to 6 mg/l. To lead the ornamental fish industry in Nepal, there need to be strong research and development activities covering breeding and development of new ornamental fish species including both native and exotic.Item Problems and Prospects of Rainbow Trout Fish Farming in Nuwakot District(Central Department of Rural Development Tribhuvan University, Kathmandu, 2016) Bhusal, Bhupendra PrasadThis study deals with the Problems And Prospects Of Rainbow Trout Fish Farming of Nuwakot District. It is an Important occupation which could generate income and employments in rural areas. This Study covers only Kakani VDC 4 Ranipauwa Nuwakot District. The general objectives of the study is to diagnose the problem and prospects of trout farming in Trishuli for the study the extensive field visit was conducted in Nuwakot District. Hence, the findings and recommendations of this study may not be applicable on other place. It is based on empirical data alone with available pertinent was applied. For primary data generation, structured questionnaire. Informal interview from key- informant and observation method were applied. The study is descriptive and analytical in nature in which descriptive statistics is applied for the analysis of the data. The analysis of the data is done manually/ 38 cottage and small industries are taken on the basis of universal method on different words of Nuwakot District. There are some problems in goods production and, marketing such as lack of institutional credit services, low price of goods insufficient raw materials unprotected government policies and so on. Specially the products and services are for local areas. There is further possibility of market expansionItem Production and Profitability of Fish Farming: A Case Study of Begnas Lake Area, Kaski(Faculty of Economics, 2017) Tiwari, Devi RamanThe study entitled, “Production and Profitability of Fish Farming in Pokhara Lekhnath Metropolitian, Kaski” has been carried out in partial fulfillment for the degree of Master of Arts in Economics. The study has targeted to analyze profitability of fish farming and use means and resources applied in the study area. Pokhara Lekhnath Metropolitan, ward num. 31 of Kaski district has been taken as the study area to study the production and analyze the profitability. There are 90 farmers which are directly involved in fish production in the study area. These are divided into five different strata (very low, low, medium, high and very high) on the basis of their production and forty five households were selected as respondents randomly in the condition to represent the strata. This study was mainly based upon primary data which were collected through the direct personal interview taken by researcher himself. Collected raw data has been analyzed through scientific standard unit then process in Excel program. This study has been organized into five chapters. The first chapter is an introduction to the study, which includes background, statement of the problem, objectives of the study, significance of the study, limitations of the study, justification of the study and organization of the study. The second chapter includes theoretical review, reviews of the related studies and research gap are presented. Third chapter is related to research methodology, fourth chapter is related to analysis and interpretation of data. Finally, conclusion and suggestions have been presented in chapter five. The profit analysis of fish farming concludes that the fish farmers have been seen profitable in the study area. The farmers who produce fish in very low scale have only 2.1 percent average profit, low scale have average profit 6.1 percent, medium scale have 13.8 percent, high scale have 22.8 percent and the farmers that produce in very high scale have 55.2 percent average profit. The farmers who produce fish in large scale have been seen more profitable than in small scale. This study suggests the farmers for motivating them to higher productivity of fish for their more profit. The study has found that the growers are involving in traditional multi-farming activities and they have not given the priority in commercial fish farming though it is profitable and easy economic activity. It is therefore suggested to all the concerned that fish farming is reliable geographically and climatically suitable to Nepal, it can uplift the economic standard of people fast, so farmers should be provided with training and knowledge.Item Study of Intensive Fish Farming in Madhesha, Sunsari(Department of Zoology, 2007) Adhikari, BinodThe research was conducted to investigate the intensive fish culture in Madhusha VDC, Sunsari, Nepal. The study was done in a single pond (800sq.m) and stocked with indigenous and exotic carp as Rohu (Labeo rohita), Bhakur (Catla catla), Naini (Cirrhinus mrigala), Grass carp (Ctenopharyngodon idella) and Big head carp (Aristichthys nobilis). The study was carried out for 180 days from November 2006 to April 2007 with regular analysis of physico-chemical parameter and growth of fish once in two month. The average weight of fingerling at the time of stocking was 15gm which reached 600gm (Grass carp at the time of harvesting), followed by Bhakur (500gm), Rohu (400gm), Naini (350gm) and Bighead Carp (300gm). The water temperature ranged between 19.5 to 30oC, dissolved oxygen from 4.2 to 8.3ppm and free CO2 from 6.3 to 9.0ppm. The total alkalinity ranged between 45 to 70ppm and the PH from 7 to 10.8ppm. The survival rate was found highest for Grass carp (75%), followed by Bhakur (72.5%), Rohu (62.5%), Naini (45%) and Bighead carp (44%). The total input in the pond was Rs. 7,540 and the total output from the pond was 734kg of fishes which was sold for Rs.62,390 at the rate of Rs.85/kg. This showed the total fish per hectare is Rs.779875 and the net profit of Rs.685,625 per hectare. Hence, this study, showed that polyculture an income generator for fish farmers and local people and contributing greatly to socio-economic development.