Farms are generally built in inland seas, and the interior of ponds is less washed by waves, so it is difficult to update the soil inside. If the soil is not changed for a long time, it will smell fishy and the color will be deeper. In this environment, the shells of crabs are naturally darker than those in the wild.
2. Look at the action; Wild crabs are fierce, but their reproduction is relatively mild. This is also related to their growing environment. The farm has feed, and the relative food sources are relatively rich, so there is no need to grab food. Compared with crabs, they are not very active, so they are lazy and not too wild. On the other hand, the foraging environment in the wild is poor, so we need to look for food everywhere, so there will be more exercise, and then the wildness will be more abundant.
3. Look at the body shape; Two crabs with the same weight, the wild big pliers are a little longer than the cultured ones.
4. Interaction; If you are accidentally bitten by a crab, don't make any big moves, or it will get tighter and tighter. At this time, it is necessary to put crabs into the water to see which ones are released quickly and which ones are wild, and vice versa. (According to 2, I suggest that you don't try it easily. If this happens, you can check it by the way. )
5. eat; This matter is for your reference when eating in restaurants and hotels. The meat of wild crabs is delicate and sweet, while the meat of cultured crabs is sticky and not so sweet. At the same time, the meat quality of wild crabs is filiform, so you can look at the big pliers when eating. Obviously, the meat quality is filiform layer by layer.
Extended data:
After knowing whether crabs are wild or domestic, the skills of choosing crabs are also extremely important:
look
The high-quality crab has a blue-gray carapace, shiny, white abdomen, golden claws with yellow hairs, bright colors, a round navel protruding outward, and curved and firmly connected limbs, and is large and healthy. If the back is yellow, the meat is thin. In addition, if the activity is strong, the crabs crawling around are strong and good crabs.
Weigh by hand
For crabs whose visual appearance meets the requirements, they need to be weighed one by one, and the ones with heavy hand feel are fat crabs. This trick is not suitable for river crabs and live sea crabs because these crabs are often tied up.
fruit peel
Peel off the navel of the crab. If there are many neat and condensed crabs in the shell, this crab is a good crab.
Pull
If you buy a dead sea crab, you should observe whether the crab legs are intact. Gently pull the crab's leg, the elasticity is very weak, indicating that it is a fresh sea crab. If it is not fresh, gently pulling the crab leg is not only weak, but also easy to break.
smell
If you smell the fishy smell of sea crabs, it means that the sea crabs have gone bad and can't be eaten any more. Eating spoiled sea crabs is easy to cause food poisoning.
References:
Baidu encyclopedia-crab