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The yolk of a chicken egg Diagram of a fish egg; the yolk is the area which is marked 'C'. Among animals which produce eggs, the yolk (/ ˈ j oʊ k /; 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.
Double-yolk eggs, when an egg contains two or more yolks, occurs when ovulation occurs too rapidly, or when one yolk becomes joined with another yolk. [ 29 ] Yolkless eggs , which contain whites but no yolk, usually occurs during a pullet's first effort, produced before her laying mechanism is fully ready.
Mesolecithal eggs have comparatively more yolk than the microlecithal eggs. The yolk is concentrated in one part of the egg (the vegetal pole), with the cell nucleus and most of the cytoplasm in the other (the animal pole). The cell cleavage is uneven, and mainly concentrated in the cytoplasma-rich animal pole. [3]
Deviled eggs start with hard-boiled eggs, of course, and one of the keys to perfect deviled eggs is an expertly cooked egg. But despite your best efforts, sometimes you cut into your eggs and ...
Since chickens can lay eggs almost every day, and the yolk of an immunised hen's egg contains a high concentration of IgY, chickens are gradually becoming popular as a source of customised antibodies for research. (Usually, mammals such as rabbits or goats are injected with the antigen of interest by the researcher or a contract laboratory.) [3]
Whether you've been warned by a doctor or a friend against eating the yolk, it seems that eggs carry a stigma of high cholesterol that could lead to heart disease. We think it's time to crack open ...
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An egg yolk and papaya pudding. [48] Oyakodon: Sweet and Savory Japan: A rice bowl dish of Japanese origin that consists of a soy sauce based broth and uses both the chicken and the egg for toppings, and tastes sweet and salty. Its name, "Oyakodon" means "parent and child" which is to refer to the use of chicken (parent) and egg (child) in the ...