The crab yolk is the ovary and digestive gland of the female crab.
The crab yolk is not the egg of the mother crab, although the composition is basically the same as the crab egg, but there is a fundamental difference between the two. Crab yolk is orange in color and has a delicious taste.
Crab yolk does contain egg cells that have not been discharged from the body, but there are also other crab organs, glands, tissue fluids and other substances, not just crab eggs. When the crab yolk becomes bigger and bright orange in color, it means the gonads of the female crab have matured, and at this time, what is produced and discharged from the body is the crab eggs, and the egg cells in the gonads that remain in the body still belong to the yolk as part of the crab yolk.
The egg cells of female crabs are generally divided into two parts, one of which is fertilized and discharged to reproduce small crabs, while the remaining part accumulates in the body to form crab yolk. The amount of yolk grows as the female crab matures, so mature crabs have the most abundant yolk.
Buying crab notes
1, look at the color of the crab shell
Whether it is a crab or lobster, they are growing, they have to go through several moults to be fully mature, and different periods of crab, the color of their shells will be different, so the first thing you need to do is to look at the shell of the crab. For example, in the aquatic market, you can see the crab shell is generally divided into "yellow" and "green" these 2 kinds of, and the earthy yellow crabs, generally only molt about 16 times, and green crabs, after 18 times of moulting, has been fully mature, this crab, 90% of them are plump and fat. 90% of them are plump and fat.
2, pinch the legs of the crab
Insiders buy crabs, no matter whether they are big crabs or small crabs, they will pinch the legs of the crab, if the legs pinch elasticity, indicating that the crab meat is very fat, if the crab legs pinch very deflated, there is no elasticity, indicating that the crab has no meat, no matter how cheap, do not buy.