This system of housing is an innovation of recent years. In portable folding units birds being confined to one small run, the position is changed each day, giving them fresh ground and the birds finding a considerable proportion of food from the herbage are healthier and harder.

Where the amount of free space available is limited this system is adopted, but it is necessary to allow the birds 20-30 square yards per bird of outside run. Wherever possible this space should be divided giving a run on either side of the house of 10-15 square yards per bird, thus enabling the birds to move onto fresh ground.

This system is usually adopted where land is limited and expensive. In this system the birds are confined to the house entirely, with no access to land outside.

Which is not a design for ventilation system ?

This type of roof is used in small construction which makes use of the simplest materials.

This type of roof is ideal for big establishment especially in commercial farms. It is actually double span with an outlet of air at the top of the roof.

Poultry Houses May Be Classified According to:

This type of roof is similar to the monitor type except that the outlet of air is made on one side only.

Space requirement of mature sow per square meter