Fertilization

Fertilization
Definition
The process of fusion of sperm with the ovum to form a single diploid cell, zygote is called fertilizatoin.

• In hen, fertilization is internal.
• It occurs in oviduct
• After fertilization, second maturation division in secondary oocyte to become mature ovum.
• When ovum passes through the oviduct, it is covered by Albumen.
• On the outer region of albumen two membranes are present known as shell membrane.
• The egg is covered by a hard porous, calcareous shell.
• Fertilized egg is laid 24 hours after the fertilization.

Incubation
The fertilized ovum requires an optimum temperature 36-38oC for development. It provide either naturally by mother’s body or artificially in incubator. At this temperature the chick completes development and is hatched on the 21 days.