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A diagram of a bird egg. Eggs of various birds, labelled (Trinity College Zoological Museum, Dublin) Bird eggs are laid by the females and range in quantity from one (as in condors) to up to seventeen (the grey partridge). Clutch size may vary latitudinally within a species. Some birds lay eggs even when the eggs have not been fertilized; it is ...
For other uses, see Egg (disambiguation). Eggs of various birds, a reptile, various cartilaginous fish, a cuttlefish and various butterflies and moths. (Click on image for key) Diagram of a fertilized chicken egg in its ninth day. Membranes: allantois, chorion, amnion, and vitellus/yolk. Six commercial chicken eggs — view from the top against ...
The contents of a chicken egg with chalaza clearly visible. In the eggs of most birds (not of the reptiles [1]), the chalazae are two spiral bands of tissue that suspend the yolk in the center of the white (the albumen). The function of the chalazae is to hold the yolk in place.
The bird egg is a fertilized gamete (or, in the case of some birds, such as chickens, possibly unfertilized) located on the yolk surface and surrounded by albumen, or egg white. The albumen in turn is surrounded by two shell membranes (inner and outer membranes) and then the eggshell. The chicken eggshell is 95 [citation needed] -97% [ 2 ...
Yolk. The yolk of a chicken egg. Diagram of a fish egg; the yolk is the area marked 'C'. Among animals which produce eggs, the yolk (/ ˈjoʊk /; also known as the vitellus) is the nutrient -bearing portion of the egg whose primary function is to supply food for the development of the embryo. Some types of egg contain no yolk, for example ...
Balut eggs are savored for their balance of textures and flavors. The broth surrounding the embryo is sipped from the egg before the shell is peeled, and the yolk and young chick inside can be eaten. All of the contents of the egg may be consumed, although the white albumen may remain uneaten depending on the age of the fertilized egg.
The chorioallantoic membrane (CAM), also known as the chorioallantois, is a highly vascularized membrane found in the eggs of certain amniotes like birds and reptiles. It is formed by the fusion of the mesodermal layers of two extra-embryonic membranes – the chorion and the allantois. [ 1 ] It is the avian homologue of the mammalian placenta.
A fried chicken egg, sunny side up. Scrambled eggs served with ham and toast. Chicken eggs are widely used in many types of dishes, both sweet and savory, including many baked goods. Some of the most common preparation methods include scrambled, fried, poached, hard-boiled, soft-boiled, omelettes, and pickled.