The structure of wind in the air layer near the ground within an industrial poultry farm was investigated in order to assess the natural ventilation of the space between hen houses, contributing to the aerosanitary state of the farm. During windy weather, the air movement between hen houses was along the corridors formed by the buildings regardless of the direction of wind at a height of 8.5 m. Under calm conditions, the air in the near-ground layer moved perpendicularly to the long axis of the buildings, causing the polluted air to flow from one hen house to another. It is recommended that the hen houses of an industrial poultry farm should be located according to the directions of prevailing winds. The aerosanitary conditions of such a farm can be improved by properly developing its area or by changing the system of ventilation.

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