Female reproductive system of chicken/poultry

Ovary produces ova

Infundibulum: it’s where fertilization takes place and also the formation of yolk sac takes place here.

The egg takes about ¼ an hour while here.

Magnum: this is where 45% of the albumen and the chalazae are formed.  The egg takes about 3 hrs here.

Isthmus: this is where 10% of the egg white is added.  The egg membranes are also formed here and the egg takes between 1 ¼ hr while here.

Uterus / shell gland: in this place the outer calcium shell is added to the egg and 45% of the albumen is also added.  The egg spends 18-22hrs while here.

Vagina: the egg is inverted in this place and vaginal fluid is secreted to reduce friction.  The egg spends about one minute before moving to the cloaca.

Dr. Bbosa Science