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Poultry as one of the animal production enterprises is considered as an important part of these enterprises. Recently, poultry production industry in Egypt is considered one of the most important industries to achieve self sufficiency in animal protein, especially with the awful increasing of human population. The objective of book to select a suitable open system broiler house based on house length/width ratio and ventilation area/house area; to select the most suitable equipment and most suitable working systems concerning feeding, drinking, ventilation, heating and lighting systems; to select a suitable bird density; develop a heat balance for calculation heating or cooling load based on meteorological data; developing empirical equations to predict weekly broiler performance; determining energy consumption of the house and estimating the total cost and return per kg of live body weight and developing a computer program using the empirical equations obtained from the experimental work. The evaluation of the studied system was estimated based on different broiler performance parameters such as bird feed consumption, bird body weight, feed conversion ratio and bird's mortality.