However, while enjoying this delicious food, many friends are actually struggling: "I heard that crayfish grow in a very dirty environment, and its body contains a lot of parasites. Will eating too much really infect parasites? "
This, is it true? Can we still enjoy this delicious food happily?
Crayfish, also known as Procambarus clarkii, belongs to Arthropoda, Crustacea, Decapoda, Reptilia and Procambarus. They live in fresh water and are omnivores.
It has been mentioned in many animal husbandry papers, such as "Preliminary discussion on the culture technology of Procambarus clarkii". It is the intermediate host of many vertebrate parasites, such as paragonimiasis.
Therefore, there is no doubt that crayfish must contain parasites.
Next, let's learn about paragonimiasis.
Paragonimus westermani, also known as Paragonimus westermani, is a parasite that can infect people and animals. In humans, it is mainly parasitic in the lungs, but also in the brain, muscles and other parts.
Its children and adults will do harm to the human body when they move and live in the human body. When they are deposited in human lungs, patients will have chest pain, hemoptysis and other symptoms.
Nodules formed by paragonimiasis can be seen in the lungs infected by paragonimiasis.
When they are transferred to the brain, they will lead to severe headache, epilepsy, decreased vision and even hemiplegia and aphasia.
When paragonimiasis swims under the skin, we can see small nodules under the skin of the patient.
The eggs of Paragonimus enter the water to develop into cercaria, and drill into the first intermediate host-snail to form cercaria. Later, it developed into mother cercariae and daughter cercariae, and then developed into a large number of cercariae. The cercaria leaves the snail and invades the second intermediate host-stone crab, cricket and crayfish, and develops into cercaria.
If people eat raw or undercooked stone crabs and crayfish, the cysts enter the small intestine, the larvae come out of the cysts, enter the abdominal cavity through the intestinal wall, and then enter the lungs through the diaphragm to develop into adults.
Adults can live in the host for 5~6 years, and the elderly can live for 20 years.
The intermediate hosts of paragonimiasis are crayfish, snails, crickets and crabs.
How to prevent paragonimiasis?
Most parasites and parasite eggs can be killed when heated at a high enough temperature, and paragonimiasis is no exception. The main causes of infection with paragonimiasis are eating raw crayfish, crabs, crickets and snails. Was eaten. Therefore, it is possible to prevent this parasite from being infected by not eating raw crabs and crayfish, or not eating immature small stone crabs and crickets, and not drinking raw water.
Fortunately, crayfish is the best in oil stew. It seems that not many people like to eat crayfish raw. But if we make our own crayfish, we must do it well.