Live shrimp shipping box
Hokkaido Aquatic Food Company of Japan has developed a fresh-keeping box for transporting live shrimp, which adopts a three-layer structure; the inner layer is a watertight vinyl box (containing water and live shrimp), with Styrofoam as the outer layer, and a space between the two layers with 5cm or so can be used to put crushed ice or chemical refrigerants. Disinfect and inject some oxygen into the sea water in the inner box, put the live shrimp in the water, then cover it tightly and transport it.
Using this kind of packing box to transport live shrimp, even if the external temperature is as high as 40 ℃, it can be kept fresh for 24 hours, and the survival rate is more than 90%. The lower the external temperature, the better the effect.
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Selection of High quality Fish species-- Pelteobagrus fulvidraco
Pelteobagrus fulvidraco (Pelteobagrus fulvidraco), also known as Pelteobagrus fulvidraco, Gasyazi, Ansi fish, yellow on the back, yellow on the side and intermittent black patches, naked, scaleless and long, are distributed in the natural waters of most parts of China. Pelteobagrus fulvidraco is a warm-water bottom fish, which likes to inhabit still water or slow-flow water, and its survival temperature is 0 ℃-38 ℃. It has strong adaptability and great potential for culture, so it can be popularized and cultured in most inland waters of China. Pelteobagrus fulvidraco has delicate meat and delicious taste, which not only has nourishing effect, but also has certain medicinal value, so it is very popular with consumers.
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Five methods of clearing ponds before the release of fish species
Before stocking, the culture pond must be cleared to kill all kinds of ferocious small wild miscellaneous fish, harmful aquatic animals and plants, parasitic eggs and pathogenic bacteria in the pond, so as to create a good environment for the growth of adult fish. The following five methods of clearing ponds are introduced: first, clear ponds with quicklime. When the pond is cleaned by drainage (that is, the pond is cleaned after the water is drained to 5 cm deep), 60,70kg of quicklime is used per mu of pond; when the pond is not drained, 125kg / m of deep water is used (200p).
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