Incubation

• It is the process by which hen provides necessary condition for the egg so that it changes into functional organism and ultimately to living chick.

Types of incubation

a) Natural incubation:

• Egg is hatched with the help of broody hen.
• Have high % of success.

b) Artificial incubation:

i) Forced-air incubator:

• Use of Fans to spread warm air all over the air chamber.
• Allow large no. of eggs to be included at the same time.
• 82-88⁰ F for egg setting and 94⁰F for hatching.

ii) Still-Air incubator:

• Has no air holes.
• Harder and trickier to use.

iii) Conventional incubator:

• Relies on ventilation holes found at top, side and bottom of the incubator.
• With these holes, warm air rises and cold air pull in.