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The research aimed at the economic evaluation of marine aquaculture in the Triangle area in Damietta Governorate. The data was collected using a personal interview questionnaire during the months of September and October of the year 2020. This is for a regular random sample of 57 holders of marine fish farms in Damietta Governorate, representing about 5% of the total holders of marine fish farms. The descriptive and quantitative statistical analysis method has been used to estimate some averages, percentages and economic indicators that serve the research objectives. The research reached several results, the most important of which are: (1) The relative contribution of natural fisheries in Egypt and Damietta Governorate declined, as their contribution reached 22.74% and 15.14%, respectively. While the role of fish farming has been steadily growing, its contribution amounted to 77.26% and 84.86% of the total fish production in Egypt and Damietta Governorate, which amounted to 1599.69 thousand tons, 150.36 thousand tons as an average for the period (2010-2019), respectively. (2) The average value of the variable and fixed costs per acre in marine farms amounted to 208.70 thousand pounds, 23.70 thousand pounds, representing 89.80%, 10.20%, respectively, of the total costs, which amounted to 232.40 thousand pounds/feddan. (3) The average selling price of a ton of sea bream and sea bass was 100 thousand pounds, 70 thousand pounds for mullet, and the average production per acre of marine fish was 2.889 tons, while the total revenue from sold marine fish was 283.23 thousand pounds/feddan. (4) Marine aquaculture projects generate profit and an economic return. (5) The feasibility of investing in marine aquaculture activity was shown, as the average internal rate of return was estimated at 37%. (6) Investment efficiency indicators are more sensitive to changes in the farm selling price of marine fish than changes in the purchase price of feed and fingerlings, but the profitability of these projects remains economically feasible. (7) The critical value of the average selling price of bream and sea bass was estimated at 88.50 thousand pounds / ton, and mullet 61.95 thousand pounds / ton, while the critical value for the price of a ton of fodder was 25.40 thousand pounds, while the critical value of the mortality rate was 30%. (8) The problems of marine fish farming facing the respondents were of high relative importance and were represented in administrative and organizational problems, technical and operational problems, and economic and marketing problems. (9) The most important proposals of the respondents to overcome the problems of marine fish farming that they face are to provide and support the prices of feed, seed, and production requirements from the Authority - Establishing fish sales and marketing outlets near the areas of marine fish farms - Constantly cleansing the septic tanks and public drains and increasing the number of openings and septic tanks in the Triangle area and the road. Port Said International to constantly replenish the water - Establishing a fish hatchery that serves the marine fish farms area in Damietta to provide fry continuously and in a timely manner - Increasing the rental period for marine fish farms while working on ownership of lands for owners of marine fish farms. [ABSTRACT FROM AUTHOR]

The sector of poultry in Egypt are exposed to many of the production and marketing risks, this lead to fluctuation and instability of poultry production and fluctuating incomes of producers. This research aimed to identify the most important sources of risk and uncertainty in the field of broilers production in Gharbia Governorate. The research relied on secondary published and unpublished data, in addition to the primary data have been collected through a questionnaire from a sample of poultry producers in Gharbia Governorate. The most important results of the research are as follows: The coefficient of variation for prices of chicks, maize, feed and soybean prices were, respectively about 43.2%, 6.6%, 5% and 1,1%. The average costs to produce a ton of broilers meat in Gharbia Governorate were about 11.3, 10.8, 10.7 thousand pounds for the three categories, respectively. Feed and chicks costs represent about 82.9%, 83.8%, 84.6% of the cost of production per ton of broilers for the three categories, respectively, while The cost of the rent, wages of workers, medicines, the cost of the bedding, and the cost of energy in the next place, respectively, which represent 17.1%, 16.2% and 15.4% of the cost of the production per ton of broilers for the three categories respectively. The net revenue amounted to 316.2, 669.5 and 851.7 pounds per ton of broilers for the three categories, respectively, and the return on the pound spent was about 0.03, 0.06 and 0.08 pounds, also the ratio of total revenue to total costs estimated at 102.7%, 106% and 107.7%, as well as the profitability of the pound spent was about 2.7%, 6% and 7.7%. Finally, the profit margin ratio of the producer amounted to about 2.7%, 5.6% and 7.2% for the three categories, respectively. Internal rate of return for a poultry farm in Gharbia Governorate is estimated at 7.9%, 21.4% and 32.9% for the three categories, respectively. The research results showed high sensitivity broilers project to change in the price of poultry meat which has been ranked as the highest risk elements, plus to the change in the prices of feed and chicks, finally the mortality ratio, in the other side in the first category was the high sensitivity towards changing in these elements. [ABSTRACT FROM AUTHOR]