Walls : Fireproof material should be used in constructing the walls of the hatchery also prevents the growth of molds common to walls that are porous and absorbent.Height of the ceiling : The height of the ceiling should be at least 10 ft.Find the depth of the incubators then allow space for the working aisles, behind the machines and the walls. Width of the hatchery : The width of the setter and hatcher rooms is to be determined by the type of the incubator used.Brief general points to be considered are,

Hatchery buildings should be intricately designed, properly constructed, and adequately ventilated.

Such a flow affords better isolation of the rooms and there is less human traffic throughout the building. In other words, eggs and chicks should flow through the hatchery from one room to the one next needed in the hatching process. Hatchery should be constructed in such a manner that the hatching eggs may be taken in one end and the chicks removed at the other. Also, necessary space to be allotted for future expansion. The size of the hatchery is based on the egg capacity of the setters and hatchers, number of eggs that can be set each week and number of chicks hatched each week. The hatchery should be situated at least 1000 ft from poultry houses to prevent horizontal transmission of disease-producing organisms from the chicken houses to the hatchery. The hatchery area should be a separate unit with its own entrance and exit, unassociated with those of the poultry farm. The chick hatcheries are modern buildings that provide separate rooms for each hatchery operations, but each room has its individual requirements. That means 50% humidity at 70☏ is different from 50% humidity at 90☏. Raising the temperature in the incubator without adding water will cause the RH% to drop and vice versa.Incubation is the act Forced draft incubators RH% represents the measurement of water vapor in the air compared to the maximum that could be absorbed at that temperature. 90☏ wet bulb temperature is 45% RH not 90% RH! Relative Humidity or RH% Wet bulb is another way to measure humidity and these should not be confused. This is known as Relative Humidity, or RH%. The amount of water vapor in the air relative to the temperature is how humidity is measured.

Throughout the course of incubation, you want the humidity level to average a certain level, so high or low humidity can be corrected later on in the process. Humidity does not need to be strictly regulated in the same way as temperature. They can die after pipping from lack of air, or they may not have enough space to maneuver into hatching position. Large chicks take up too much space, so they may not have enough air when they pip. The chick will be larger (and stronger), but this is not necessarily better. The inverse of low humidity is high humidity, which means the egg does not lose enough weight. Low humidity is usually less of an issue than high humidity, but it can cause chicks to die before they are able to hatch. This makes the air space larger than it should be, so the chick will be smaller and weaker. Low HumidityĮggs losing too much weight is due to low humidity. Developing chicks need enough air and space to move around, which is why it is important to regulate humidity.

If the humidity is set to the right percentage, then the eggs will lose the right amount of weight. Egg shells are porous, meaning they will naturally lose weight through the course of incubation.

Bird incubator hatching eggs