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•Egg formation in a layer.
•Egg formation takes place along the elongated oviduct.
•The oviduct consist of ovary, funnel, magnum, isthmus, uterus, vagina and cloaca.
•Ova (eggs) are formed in the ovary.
•When the ovum (yolk) is mature, it is released from the ovary.
•The released ovum is received by the funnel.
•Fertilization takes place in the funnel.
•Chalazae is added to hold the yolk in the funnel / infundibulum.
•The ovum stays in the funnel for about 15 minutes.
•Thick albumen is added at the magnum.
•The yolk stays in the magnum for about 3 hours.
•Shell membranes are added in the isthmus.
•Water, mineral salts and vitamins are also added in the isthmus.
•Egg stays in the isthmus for 1¼ hours.
•In the uterus (shell gland) calcium is deposited and shell pigments added.
•Completion of addition of albumen occurs in the uterus.
•The egg stays here for about 18 21 hours.
•The egg is temporarily stored in the vagina before being laid.
•The egg is removed beyond the vent of cloaca during the egg laying.
johnson mwenjera answered the question on February 10, 2018 at 17:14
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