Fresh-keeping technology of fish meat
one。 Wet paper sticking to the eye
Stick the soaked paper on the fish's eyes, because there is a death line behind the nerve in the fish's eyes, which will break as soon as it leaves the water, and the fish will die soon. The paste can keep the fish alive for five hours.
two。 Hot water immersion
Put the fresh fish in 88 ℃ of hot water, soak it for two minutes, then take it out, and then put it in the freezer to freeze. After this treatment, the bacteria on the fish's surface have been scalded to death, and after freezing, the bacteria are prevented from reproducing. After three days, the fish is cooked, tastes as good as alive, and is as delicious as the killed fish.
three。 Dripping wine from fish gills
Drop a few drops of liquor in the gills of live fish, then put the fish in a dark place and cover it with something breathable, which can keep the fish alive for two days.
four。 Alcohol smear
A layer of alcohol is applied on the surface of live fish to inhibit the reproduction of all kinds of bacteria without damaging the nutritional composition of fish meat and can be kept fresh for a long time.
five。 Apply oil to both cheeks
The gills of live fish are opened and smeared on the gills with edible oil to prevent the gills from drying, which is beneficial for live fish to maintain life on dissolved oxygen in the blood and prolong the survival time of live fish after dehydration.
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Parent cultivation technique of small yellow croaker Pseudosciaena Crocea
Small yellow croaker (PseudosciaenapolyactisBleeker) belongs to Perciformes, Perciformes, Coleopteridae and Pseudosciaena Crocea, distributed in the Bohai Sea, the Yellow Sea and the northern part of the East China Sea. It is a warm near-bottom fish and was originally one of the four major marine economic fishes in China. The resources of Pseudosciaena Crocea have declined seriously since the 1950s. In this paper, the author introduces the technique of parent culture of Pseudosciaena Crocea. Through the observation of the growth process of Pseudosciaena Crocea, the growth parameters are recorded, which are the artificial reproduction and human of Pseudosciaena Crocea.
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The raising of clothing fish
Ctenopharyngodon idellus is a photophobic insect, and most of the growth and development in its life is carried out at night. The place of living and the source of food are closely related to the human living environment. Brick and wood structure, lime-soil floor, moist old-fashioned houses and warehouses are its suitable places to live. Therefore, the collection of insects to choose the above places, but also to make use of its flat body, like to hide in the cracks, as well as the characteristics of gluttonous waste clothes, paper and greasy food, to make harvesting tools. A. preparation and use of traps
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