Summer is coming, and the hot and humid weather is best for a cold beer and a stir-fried snail.
However, when it comes to the snail, we must take out the Fushou snail to remind everyone.
Its shape is very similar to the field snail, every year from May to August is the peak breeding season, recently there have been citizens reported that in the pond found eggs laid by the Fushou snail -
That dense pink egg mass instantly made people goosebumps!
Fushou snail can not be eaten, I believe many people know, because its "record" is too sharp.
Especially in 2006, after the large-scale incidence of accidental consumption of Fushou snails occurred, it aroused widespread concern among the citizens of the country.
The director searched back, this snail actually infected a pregnant woman with parasites in the skull, because the treatment required a lot of hormonal drugs, plus received 6 lumbar punctures in the first half of the year, and finally forced to helplessly, can only abort the baby in the abdomen.
Although there are incidents of parasitic infection caused by accidental eating of Fushou snails, there are still many unscrupulous merchants who fish in muddy waters and sell Fushou snails as field snails.
Today, the director will tell you how to distinguish between Fushou snails, and do not step on the thunder and eat them at the same time!
01
The past and present lives of Fushou Snail
Although Fushou snail is now shouted and beaten by everyone, it was originally introduced to the market as a "meat snail" at the beginning.
Fushou snail is not a native species in China, originating in the Amazon River Basin of South America, and was introduced to Guangdong in the 1980s, setting off a wave of breeding.
Image source @ Micro Rabbit Video
Fushou snail is similar in appearance to field snail, but it is larger than field snail, thicker in flesh, and has amazing fertility.
A Fushou snail can produce up to 300,000 young snails a year, while the field snail only produces about 100-150 snails a year.
From a business point of view, Fushou snail is more valuable than field snail.
And the pink eggs it produces will stick to the edge of the object like a bunch of grapes, sticking to wherever it goes, friends with dense phobia, high energy ahead!
But it is precisely because the breeding rate is too fast that it is found that the Fushou snail will seriously threaten the local ecology.
Everywhere the Fushou snail went, the local crops were nibbled away, and although the peasant uncle scorned it, it did not prevent the Fushou snail from landing on the major tables.
02
Nematodes on the brain, triggering a crisis of infection
Because of its large size and thick flesh, Fushou snails were initially popular as inexpensive ingredients.
In 2006, in order to reduce costs, a restaurant in Beijing replaced the conch with Fushou snails, and made a dish of "cold snail meat", which brought the freshly cut but not fully cooked Fushou snails to the table, causing more than 100 diners to be infected with "Guangzhou roundworm".
At this time, everyone is vigilant, a small Fushou snail, there are many crises!
The larvae of Guangzhou tube strongiae can enter the human brain and other organs, causing people to have sharp headaches, damage the central nervous system, cause eosinophilia meningitis, and can cause headaches, fever, neck stiffness and other symptoms.
Severe cases can cause dementia and even death!
However, this nematode treats the human body as an intermediate host, and simple skin contact will not cause infection.
However, when children encounter Fushou snails when playing outdoors, they should not touch them, so as not to get sick from the mouth.
03
How to distinguish Fushou snail?
From the size point of view, the Fushou snail is larger than the field snail; from the color point of view, the shell color of the Fushou snail is lighter than the general field snail, yellow-brown, and the field snail is bluish brown.
From the structural point of view, the tail of the field snail is vertebral in shape, and the cap is round, while the tail of the Fushou snail is very short, the cover head is flattened, and the whole is disc-shaped.
In addition, the eggs of fushou snails are pink.
The tail of the field snail is long and the opening is small and round; the tail of the Fushou snail is short and the opening is large oval.
So as long as you avoid the Fushou snail, can the other snails be eaten with confidence?
NONONO！ There are parasites in the snail meat, and there are relatively few parasites in the field snail.
The ring snail, that is, the "snail" in the snail powder we often eat, has more parasites than field snails, and if it is to be eaten, it must be thoroughly cooked and cannot be neglected.
In this "chain of disdain for the host of the Guangzhou tube roundworm snail", the parasite content of various snails is as follows:
Field snail < ring ridge snail (snail) < Fushou snail < brown cloud agate snail.
The data comes from the "Investigation of infection status of the main snail hosts of Guangzhou Tube Roundworm in Nanshan District, Shenzhen"
The table shows that the brown cloud agate snail, which is the first host species of TubeWorm, is the African large snail that is often seen crawling on the road.
Image source: Weibo @ 亖IlIl 亖
04
A large African snail that is more poisonous than Fushou snail
Carefully observed friends will find that in the wet fields and roads after the rain, giant snails will often be found, especially on summer typhoon days, and some citizens will report that one hour after the rainstorm, hundreds of giant snails can gush out of the community!
Image source @ look at the video
The foodies thought to themselves: Hey hey, is it meat delivery again?
The director reminded that this giant snail cannot be eaten! Can't even touch it!
This giant snail is called the African giant snail, the scientific name is brown cloud agate snail, the same snail family as the Fushou snail, and it is also an invasive alien species.
However, it is more "poisonous" than Fushou snail, and the stable snail parasite despises no.1 in the chain!
In addition to The Guangzhou Tube Strongyloids, the African giant snail also carries a large variety of parasitic bacteria, such as Pseudomonas, Escherichia coli, Proteus, Serratia and Bacillus and other conditional pathogenic bacteria.
If you eat African snails, you are likely to infect the parasite and even cause fatal meningitis.
In addition, dead African large snails attract large numbers of green flies, which in turn carry and transmit pathogens.
Therefore, don't say eat, not even touch, with shoes to step on.
So how to control giant snails? Keep the following 3 points in mind!
● When parents take their children to play outdoors, do not let children be curious about contact with African snails, let alone take them home as pets, and wash their hands thoroughly immediately after accidental contact;
● African giant snails like humid environments, so keeping the yard and balcony clean, cleaning up the corners of damp and stagnant water, or directly sprinkling quicklime powder is the most effective and direct way to control the spread of African giant snails;
● If a small number of snails are found at home, they can be treated with table salt at home. After the snail is sprinkled with table salt, the soft part will melt into water and die.
05
How to enjoy crayfish safely?
Although the above alien species cannot be eaten, another "foreign friend" has fought a beautiful turnaround battle, in addition to being able to eat, it is also particularly delicious!
As one of the most invasive alien species, crayfish has been described as an infinite scenery in recent years.
Its road to turnaround is very legendary, from the dislike of everyone to the pursuit of thousands of people, no matter the garlic spicy thirteen spices, now it can lock the taste buds of foodies.
However, in the past few years, the wind reviews about crayfish are "dirty and messy", and there is also a saying that sewage reproduction, dirty is not good?
The scientific name of the crayfish is protocrayfish, which has a strong ability to survive and reproduce, even in sewage environments.
Therefore, people mistakenly believe that crayfish live in sewage, or that the crayfish we eat are farmed in sewage.
However, the crayfish sold on the market are basically farmed, and the proportion of wild shrimp is very small. In addition, in recent years, China's food safety supervision has become stronger and stronger, and the relevant standards have become increasingly perfect.
According to the results of market sampling surveys in some provinces and cities, the residue content of heavy metals such as lead, mercury, arsenic, and agricultural and veterinary drugs sold in the vast majority of commercially available crayfish is within the safety limit.
The quality of crayfish purchased from the regular market can be assured, but some tips for eating shrimp are still to be known, and the director will teach you a few tricks!
1. Do not eat shrimp heads.
Heavy metals in the water body will enter the crayfish through the breathing of the shrimp gills, and tissues such as the shrimp gills are located on the head of the shrimp.
At the same time, shrimp heads are also a hiding place for microbial parasites.
2, shrimp line is recommended to remove.
Shrimp line is the digestive tract of shrimp, there are undigested food residues and excrement that has not been excreted in time, it is recommended to remove for safety.
3. Shrimp yellow is recommended to remove.
Shrimp yellow is not shrimp roe or shrimp, is the liver and pancreas of crayfish, the gall is a detoxification organ, of course, it is easy to enrich heavy metals, it is inevitable to carry some parasites.
In summary, if you can't eat it, then eating crayfish is probably eating a lonely. But in order to eat with confidence, foodies should follow the advice.
In addition, crayfish still have the possibility of parasitism of lung fluke larvae, so even if there are more cooking tricks, do not try half-cooked, raw pickled shrimp and other methods, be sure to cook thoroughly!
06
When it comes to parasite-prone ingredients, there are many more, such as the following:
Swipe << >> left
To eliminate the parasites in the ingredients and eat safely and securely, the key is not to eat raw, cook thoroughly, and prevent it from happening.
Although the freshly raw ingredients are "delicious", health is still the most important, and you foodies should not pick up sesame seeds and drop watermelons