A kind of industrial large-scale seed cultivation device and cultivation method of Penaeus japonicus

Abstract

The invention relates to a factory-like large-scale seed culture device and method for marsupenaeus japonicus, and belongs to the technical field of prawn farming. The method includes the following processing steps that 1, a culture pond is constructed; 2, sanding is conducted; 3, a gas-lift unit is installed; 4, disinfecting is carried out; 5, inflow is performed; 6, seeds are put in; 7, the water color is adjusted; 8, bait is thrown; 9, the water quality and growth conditions are monitored; 10, the seeds are moved out of the pond. According to the method, factory-like high-density and large-scale (about 3 cm) seed culture can be conducted, the culture period in the culture pond is shortened, and the large-scale seed culture device and method for the marsupenaeus japonicus which is cultured for multiple batches in one year are realized. By the adoption of the method, the body length of the seeds is cultured to be about 3 cm from 0.8 cm, and the survival rate of the marsupenaeus japonicus can reach 80%; the marsupenaeus japonicus is cultured into commercial sized marsupenaeus japonicus from the body length of about 3 cm, the survival rate of the marsupenaeus japonicus can reach 70%, and the yield can reach 1500-2250 kg / hm2.

Description

technical field

[0001] The invention relates to an industrial large-scale seed cultivating device and a cultivating method of Penaeus japonicus, belonging to the technical field of prawn culture. Background technique

[0002] Shrimp is a popular aquatic food. In recent years, the high-level ponds and industrialized high-density aquaculture water bodies of domestic and foreign species such as Litopenaeus vannamei and Penaeus monodon have increased rapidly, and the technology has been improved day by day. The equivalent unit yield has reached 7.5kg / m3 2 above. As an excellent variety of prawns, Penaeus japonica is favored by the market because of its resistance to dry transportation and can be sold live. . Penaeus japonicus is distributed in the Bohai Sea, the Yellow Sea and the western coast of the Korean Peninsula in China; in the coastal areas of my country, it is cultivated in both the north and the south. Because Penaeus japonica has the habit of burrowing in sand, mos...

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