Ventilation in Poultry Houses
Ventilation in poultry houses is one of the most important principles of raising broiler chickens . It is the only key to reduce the respiratory problems of the bird and to reach the highest productivity and the highest conversion rate.
Ventilation is an important factor that controls the productive performance of birds. Poor ventilation leads to low weight and food conversion rate, as well as respiratory diseases that increase the mortality rate, reduce the immunity of birds and make them susceptible to bacterial and viral diseases and eventually develop respiratory disease Chronic Respiratory Disease (CRD), which is difficult to treat and causes significant economic losses, and poor ventilation leads to increased incidence of Hock Burn.
What is the main importance of ventilation in poultry houses?
1- Elimination of many harmful gases in the respiratory system of the bird, such as ammonia and gases resulting from the operation of heaters and replace the proportion of carbon dioxide gas by oxygen to breathe birds well.
2- Heat distribution inside the poultry houses and get rid of excess heat.
3- Distribution of moisture inside the poultry houses and disposal of excess moisture..
4- Get rid of bad dust.
Poultry farms are generally ventilated in two ways:
The first system:
Ventilation using Exhaust Fans: in this system, the air is withdrawn from the inside of the farm through suction fans and this creates a low pressure inside the farm and as a result, the air enters from outside the farm into the system and also called this system Tunnel Ventilation System.
The second system:
Ventilation through the opening of side curtains (Side-Wall Curtains) where ventilation is by opening and locking the side curtains.
The two systems may be put together so that the curtains can be locked and the closed system is operated with suction fans and this is at high and low temperatures.
Effects of poor ventilation on the chicks inside the farm
– A lot of respiratory problems such as mycoplasma and many more.
– Inflammation of the membranes of the eye due to the high proportion of ammonia inside the poultry house for poor ventilation.
Stressed strong on the chicks and thus cause the decline of immunity and face diseases and underdevelopment.
– Little feed intake and idle on the farm.
– High Humidity Within the house and the fungal problems of coccidiosis begin to appear inside the farm.
– Efficiency of the rate of conversion and food is low and, therefore, we get the weight of a discount.
Effect of good ventilation on the chicks
– No respiratory problems.
– Increase the appetite of the bird.
– Disappearance of the smell of ammonia in the house and reduce the problems of the eye.
– In the end, the efficiency of the conversion rate rises and we get high weights.
