A method for maintaining golden body color and orange-red lips of cultured large yellow croaker

Abstract

The invention discloses a method for maintaining golden body color and orange-red lips of cultured large yellow croaker. Carotene; (2) The starting time for fishing is 20:00‑24:00h in the evening. After the starting time, the fish should be fished into the holding tank first, and the large yellow croaker should not be stimulated and damaged; (3) Temporary feeding in the holding tank Density controlled at 40‑70 kg / m 3 , and the holding time is controlled at 40-80min; (4) Quickly remove the live large yellow croaker from the temporary holding box to a tank filled with cold sea water under the condition of shelter from wind and light, and cover the cold water tank with black plastic cloth immediately after putting it in. Cover and use weak warm-colored light in the external environment. After the large yellow croaker is frozen and suffocated, immediately put it in the ice storage and store it in crushed ice. The farmed large yellow croaker maintains a golden body color and orange-red lips.

Description

technical field [0001] The invention relates to a method for cultivating large yellow croakers, in particular to a method for maintaining golden body color and orange-red lips of the cultured large yellow croaker. Background technique [0002] Large yellow croaker has the reputation of "national fish" in my country. Wild large yellow croaker is popular among consumers because of its golden color, orange-red lips, and delicious meat. Wild large yellow croakers have been on the verge of extinction since the 1980s. In recent years, the average output of farmed large yellow croaker has been more than 100,000 tons per year. Although the quantity meets the needs of consumers, compared with the wild large yellow croaker caught in the ocean, the farmed large yellow croaker has a larger body color and meat quality. The gap affects the value of the commodity. [0003] The existing methods for maintaining the body color of large yellow croaker are as follows: (1) "A body color improv...

AI Technical Summary

Problems solved by technology

In recent years, the average output of farmed large yellow croaker has been more than 100,000 tons per year. Although the quantity meets the needs of consumers, compared with the wild large yellow croaker caught in the ocean, the farmed large yellow croaker has a larger body color and meat quality. gap, which affects the value of the commodity

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