This study was carried out 10 investigate and evaluate the actual situation of
different operation systems used for the most widely broiler houses in Egypt (open
houses). Twenty-five broiler houses were selected in Dakhlia gov:;rnorate to assess
the most suitable system. Working performance and unit production of these type of
houses wer~ the criterion used in assessment. The studied systems included different
house soeclflcations (house lengthlwidth ratio, and ventilation area !floor area), bird
density and systems 01 feeding, drinking, heating ventilation, and lighting. The criteria
of broiler performance included feed consumption, body weight, mortality and
production index, Energy consumption and costlkg of bird body were also calculated.
The length/width ratio of 2.6, ventilation area/floor area of 22 %, auger feeding
system, straight-valve drinking system, exhaust Ian ventilatlon system, umbrella gas
heating system, 20 Watt Ouorescent lighting lamps and 9 birds/m² bird density have
given the highest performance for the (open system) broiler houses,