Is the white line on the shrimp head a parasite?

For a long time, there has been a rumor on the Internet that the white lines in the shrimp heads are parasites. Later, aquatic experts told us that the white lines in the shrimp heads are not parasites, but the testes of the male shrimp. These substances are not harmful to the health of the body. Of course, when eating shrimp, it is best to remove the shrimp head, because the middle part of the shrimp head is the largest. In addition, the shrimp thread should be removed in time.

Is the white line on the shrimp head a parasite?

A fishery expert revealed the answer in one sentence: In fact, these two white lines are not parasites, but the testes of male shrimps.

Usually, immature testes are colorless and transparent, and become milky white when mature. It can be said to be equivalent to crab roe, which is rich in cholesterol and protein. This white line is not only found in shrimps, but also in mantis shrimps and lobsters, and it is much thicker, so it is impossible to be a parasite.

The possibility of parasites in shrimp is also low because:

① Parasites generally have an infection rate, which means that not all parasites are infected, and it is difficult to pick up a parasite that will definitely have a worm;

② The circulated picture shows that the "bug" seems to be very soft, and it actually broke when it was picked out with a toothpick, which is not in line with common sense;

③In a breeding environment, if there are so many parasites, the health of the shrimp must be very poor.

④ If farmers do not want to lose all their money, they will definitely try to control it. Therefore, from an economic perspective, such serious parasitic infections will not occur.

How to identify fresh crayfish

How do you tell whether the crayfish you eat in a restaurant are alive or dead? You can judge based on the shape of the cooked crayfish: if you find that the lobster's tail is straight, then these lobsters are dead and you should never eat them. If the shrimp is bent and curled up, it means it is alive and can be eaten. Crayfish should not be stir-fried quickly. If the cooking time is not enough, it cannot be guaranteed that the parasites in the crayfish will be completely killed, which is bad for the health. In addition, heavy metals and bacteria are easily accumulated in the head of crayfish, so it is best not to eat it.

Identify injected shrimp by pinching their belly

According to experts, after aquatic products such as shrimp die, their abdominal cavity and body parts will become soft. If the belly is particularly bloated and hard when pinched, be careful that it has been "injected with glue." When cooking, you can cut along the abdominal cavity and observe whether there is any transparent gelatinous substance flowing out of the shrimp body, especially the part connected to the head. In addition, if you find that aquatic products have an unusual smell or the gelatin is difficult to dissolve during cooking, harmful industrial gelatin may have been added and you should not eat it.

If the shrimp is slightly smaller, you can eat it with the shell. The shrimp shell is high in calcium, but this calcium is not easily absorbed by the human body and can only play a slight role in calcium supplementation.