The golden period for eating crabs once a year
It's coming again
Right now, it's crab fat
The price of hairy crabs in many places has also "dived"
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Big price cut! It is expected to fall! It is being listed in large quantities......
(Click on the link above for details)
It was at a time when crabs were on the market in large quantities
Rumors about "needle-eye crabs" on the Internet have attracted attention
Some people say that the crabs they buy have "needle eyes"
There are also rumors about these crabs
Injected with stimulants and liquids such as water
Unscrupulous traders use needles
Inject into the crab shell, abdomen, etc
Liquids such as seawater, chemicals, etc
Achieve both to maintain the freshness of the crabs
The purpose of increasing the weight of the crab is also increased
Is this true?
To get to the bottom of this rumor
There are two questions to be answered
Do crabs really have "needle eyes" on them?
Can crabs really be injected with liquid?
Small holes in the crab's body
It is not caused by water injection or glue injection
Luo Lin, a researcher at the Institute of Fisheries Sciences, Beijing Academy of Agriculture and Forestry Sciences: "Needle-eye crab" is a misunderstanding, the crab has to molt more than a dozen times, and the new shell is soft before it hardens, because the crab is a group of gatherers, so it is possible that the crab legs that have been molted and hardened are pierced on this soft shell, which looks like there is a hole, but it is actually not the eye of the needle.
If you really prick it with a needle, it may break, or it may not be so round and small, which is only the case if you get it when it is soft.
In fact, the "eye of the needle" on the body of the crab, which is itself "rampant and domineering", is likely to be caused by the crab's fight with its own kind during the natural growth process. In addition, crabs may also have some small wounds due to external forces during fishing and transportation.
Expert: Inject water into the crab
Causes crabs to die
It seems that the so-called "eye of the needle" on the crab
It is unlikely that a needle has been pricked
so
Is it possible for crabs to be flooded?
Experts pointed out that rashly injecting crabs with water will change the osmotic pressure of the organ environment, resulting in the loss of water and atrophy of the crab's organs or the swelling of water absorption and death, and the gains outweigh the losses. Therefore, the so-called "needle-eye crab" can never appear on a live crab.
Luo Lin, a researcher at the Institute of Fisheries Sciences of the Beijing Academy of Agriculture and Forestry Sciences, analyzed that first of all, because the muscle fibers of crabs are relatively delicate, the water retention rate is very low. If you draw water here and go out there, the crab can't hold the water, and it has no effect on weight gain.
Secondly, when injecting the crab, if it hurts its internal organs, the crab will die, and the gains outweigh the losses. In addition, injecting thousands of crabs is difficult to operate, requires a lot of labor, and may cause a large number of crabs to die.
According to experts, the transparent gelatinous substance in the crab's body is actually crab paste, which is the paragonal secretion of male crabs, that is, the sperm nest and semen, which is not only high in nutritional value but also delicious in taste. The crab roe comes from the female crab, which is the ovary of the female crab, and cannot be impersonated by water or glue.
As for the hormone injections or stimulants, the claim is also untrue. These drugs are ineffective against crabs and can also damage water quality, leading to the death of crabs. Crab farming requires good water quality, and any harmful substances will affect its survival.
Luo Lin, a researcher at the Institute of Fisheries Sciences, Beijing Academy of Agriculture and Forestry Sciences: If the crabs will die if they are hit with normal saline, then they will definitely not survive if they are sprayed. Because all animals have rejection, crabs must have an immune system to fight colloids, and if they can't, they will die.
It's a good time to eat crabs
Don't miss out on the delicious taste because of rumors
Please rest assured!
Forward it to your family and friends
Let's take a look!
-END-
Edit | Dong Yutong
Proofreading | Cai Shiyan, Liao Jingwen, Guo Xuejia, Nie Xiang
Proofreading | Dong Fangjun, Zeng Chuyuan
Executive Producer | Weekly
Source of information | CCTV News, Guangzhou Municipal Administration for Market Regulation, China Consumer Daily, Guangzhou Radio and Television Station, Haikou State Administration for Market Regulation