Sea cucumbers belong to the phylum Echinodermata and the class Holothuria among invertebrates, and are important food and medicine. There are many kinds of sea cucumbers. There are about 1100 kinds of known sea cucumbers in the world, and there are about 500 kinds in my country. Among them, there are more than 40 kinds of known edible sea cucumbers in the world, and there are about 20 kinds in my country. . Dried sea cucumber contains protein, fat, minerals, vitamins, sea cucumber peptides, sea cucumber polysaccharides, sea cucumber saponins and other nutrients and bioactive ingredients. It is a high-protein, low-fat, low-sugar food.
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Wild sea cucumbers grow in the deep sea. Usually the sea water is as deep as 26 meters to 27 meters. There is no fixed bait and it takes at least three to five years to grow. In this way, living in the deep sea for a long time, coupled with the accumulation of sunlight, the color of sea cucumbers will change. It turns dark gray, with thicker flesh and thinner skin. Sea cucumbers raised in captivity need to be fed regularly and quantitatively. Most of them can grow into a commercial shape in one or two years. They are mostly dark yellow and bright in color, with thick skin and thin flesh.
Sea cucumbers grown in the wild usually have an intact appearance and the outer skin will not be scratched. Most of the captive sea cucumbers have scratches on the outside. This is because when fishing for sea cucumbers, most sea cucumbers in deep sea are on rocks or in hanging nets, making them easy to catch. Most of the sea cucumbers in captivity lie in the cracks of solid rocks, which are not easy to catch. You have to use special tools and shovel quickly to get them, which is easy to bruise the sea cucumbers.
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