Fish Farming

Open Access Article

1 - Extension Challenges and Requirements of Integrated Rice-Fish Farming in Gilan Province, Iran
M. Omidi-Najafabadi S. H. Hosseini Kheshte Masjedi

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Open Access Article

2 - Breeding marine fish in fish farms with emphasis on sea carp (Cyprinus carpio Linnaeus 1758)
Abdollah Haghpanah

This research is aimed at obtaining technology, increasing production and profitability, promoting and diversifying in tropical fish farms, as well as breeding and breeding marine fish far from the sea coast, in order to release the fry into the sea, in order to increas More

This research is aimed at obtaining technology, increasing production and profitability, promoting and diversifying in tropical fish farms, as well as breeding and breeding marine fish far from the sea coast, in order to release the fry into the sea, in order to increase productivity and increase the stocks of this fish. The improvement of the living conditions of the fishermen was done. Sea carp breeding was carried out as a single species and in the same density format with 1400 pieces with an average weight of 42.46 ± 0.05 in 3 pools with an area of 0.5 hectares in tropical fish farms. The required fry were supplied from the Voshemgir dam center and released in breeding ponds. From the beginning of the breeding period, they were fed with natural food and farmed carp concentrate at the rate of 5-10% of their body weight. At the end of the breeding period, the average weight of this fish was 722.49 ± 0.10, the average daily growth was 3.44, the value of the food conversion coefficient was 2.30, and its survival rate was 85.83%, which indicates the adaptability of this species to the conditions The climate and breeding farms of this province and its breeding and production in the areas far from the sea shores are single-species and together with tropical fishes. For this reason, breeding of this species in order to increase the production and profitability of the aquaculture industry, as well as its production and reproduction in order to improve the stocks of this species in the sea, it can be suggested to breed it in tropical fish farms in the province. Manuscript profile

Open Access Article

3 - Assessing Status of Utilization of Agrochemicals in Fish Farming: A Study from Rural Bangladesh
Shonia Sheheli Md. Nur Alom Sarkar Mithun

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Open Access Article

4 - Comparative Cost Structure and Yield Performance Anzlysis of Upland and Mangrove Fish Farms in Southwest, Nigeria
Mafimisebi Taiwo Ejiola Okunmadewa Foluso Yinka

The bias against mangrove areas in siting fish farms prompted a comparison of the cost structure and yield performance in upland and mangrove locations. Tools utilized included descriptive statistics, budgetary and cash flow analyses and profitability ratios. Empirical More

The bias against mangrove areas in siting fish farms prompted a comparison of the cost structure and yield performance in upland and mangrove locations. Tools utilized included descriptive statistics, budgetary and cash flow analyses and profitability ratios. Empirical results revealed that substantial revenue could be realized from both farms. While the upland farms yielded average gross revenue per hectare per year of $9, 183.53, the mangrove farms made $8, 135.93 revealing a slight difference. Results of combined cash flow and sensitivity analysis buttressed that of budgetary analysis. NPVs were $10, 888.11 and $10, 375.84, B/Cs was 1.28 and 1.29 and IRR were 48.55% and 48.51% for the upland and mangrove farms, respectively. Profitability ratios were also comparable but slightly higher in the upland farms. The conclusion is that there was little or no difference in yield performance. However, the high risk of investment loss in years of excessive flood should prompt investors in mangrove farms to compulsorily insure their farms. Manuscript profile

Open Access Article

5 - A Logistic Regression Analysis: Agro-Technical Factors Impressible from Fish Farming in Rice Fields, North of Iran
Seyyed Ali Noorhosseini-Niyaki Mohammad Sadegh Allahyari

This study was carried out to identify Technical-Agronomic Factors Impressible from Fish Farming in Rice Fields. This investigation carried out by descriptive survey during July-August 2009. Studied cities including Talesh, Rezvanshahr and Masal set in Tavalesh region n More

This study was carried out to identify Technical-Agronomic Factors Impressible from Fish Farming in Rice Fields. This investigation carried out by descriptive survey during July-August 2009. Studied cities including Talesh, Rezvanshahr and Masal set in Tavalesh region near to Caspian Sea, North of Iran. The questionnaire validity and reliability were determined to enhance the dependability of the results. Data were collected from 184 respondents (61 adopters and 123 non-adopters) randomly sampled from selected villages and analyzed using logistic regression analysis. Results showed that there was a significant positive relationship (p<0.05) between biological control of pests in rice fields and the fish farming in rice fields. Also, there was a significant negative relationship (p<0.10) between the fish farming in rice fields and variables of quantity using pesticide of Diazinon in rice fields and number of plows in rice fields. Manuscript profile

Open Access Article

6 - Isolation and Recognition Infection Fungus of Salmo trutta caspius Skin in Fish Farming of the Mazandaran Province, Northern Iran
عیسی غلامپور عزیزی سید مهدی حسینی فرد سمانه روحی حمید مقتدر

Growingpopulation and the need to protein requirement forhuman societiesdevelop different systems for livestock, poultry and aquaculture provides. Caspian salmon (Salmo trutta caspius) is a species of native and migratory sea is also very important and nutritional and e More

Growingpopulation and the need to protein requirement forhuman societiesdevelop different systems for livestock, poultry and aquaculture provides. Caspian salmon (Salmo trutta caspius) is a species of native and migratory sea is also very important and nutritional and economic value is of particular interest. Aim this research is identifies and isolates pathogenic fungi from the skin of salmon fish farm sector of the Caspian Sea in Mazandaran (Savadkoh, Lafor - Ghazal Farm).Samples were taken from the skin of four fish weighing on the average 1300 gr in the spring 2011. Samples were transferred to Saborod Dextrose Agar, Glucose Peptone Agar and distilled water with hemp-seed in the room temperature.In this study Saprolegnia parasitica, Achlya (20.83%), Aspergillus(16.66%), Penicillium(12.5%), Acremonium (9.72%), Fusarium(8.33%), Sepedonium(8.33%), Alternaria(5.55%), Rhizopus(4.16%)Cladosporium (1.38%), Helminthosporium(4.16%), Drechslera(1.38%), were isolated from the skin of fish. Pathogenicfungus spores are everywhere and fish may be infected. So the problems in the fish treatment, lack of access to necessary medical advances of fish and high cost of drugs needed to treat, breeders must regardonbreeding and growth of fish. Manuscript profile

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