The poultry industry is one of the most important food industries, which supplies the Egyptian citizen with the animal protein needed to build his body, This industry produces white meat and eggs, These products are with high nutritional value because they contain essential amino acids needed to build the body, also they contain balanced proportions of fat and minerals. These products are cheap compared to red meat, which are increasing their prices down so low-income people are replacing red meat, white meat and eggs in order to get animal protein to reach to the extent necessary for the prevention of human life. Broiler production considers one of the most important episodes of the poultry industry, to the great importance for many consumers. The study depend on data collected from stratified random sample of Broiler farms Kalubia governorate in 2012. Also, the study depend on descriptive analysis, multiple regression have been applied to estimate the production functions. The results of study had declared that the most important economic factors affecting Broiler Production are number of chicks, quantity of feed stuff, and the total number of hours worked during the production and the number of dead birds during the year of production. Study is squared for the functions production costs in the short term on farms in fattening chickens in the study sample with respect to capacity production of the four, showing evidence of moral statistics obtained in the picture listed for the bites of the four, the total coefficient of determination of the capacities of the four about 0.96, 0.94, 0.71 and 0.69, respectively, and this indicates that changes in the productivity of every capacity have been interpreted about 96%, 94%, 71% and 69% of the change in production costs for the four capacities, respectively. And calculates the optimal size of production found that it amounted to about 30.1, 52.4, 140 and 195.6 ton in the capacities of the four, respectively, and therefore it is necessary to produce 19.54, 44.57, 89.5 and 117.91 thousand chickens in the capacities of the four, respectively, in order to gain access to production optimization, which gives the lowest production costs, and calculate the economic size of production in the capacities of the four found that it amounted to about 118, 125.9, 156.4, 494.4 tons, respectively, that is, it must be the production of about 76.58, 107.1, 99.99 and 298.4 thousand chickens in the capacities of the four, respectively, so as to get the greatest return on economic. The average net return for the inter sample was about 1.25 pound per ton, and the table is also clear that the average net return of tons of white meat of the capacity production of the four amounted to about 1.17, 1.18, 1.24, 1.32, respectively, and thus clear that the biggest return on net resulted in amplitude fourth followed by the third and then second in the end comes the first capacity to produce less revenue per ton.