A kind of egg bag collection and hatching device for pulse red snail industrialized nursery and its use method

Abstract

The invention belongs to the production field of industrial seedling culture for aquaculture and particularly relates to egg bag collecting and hatching devices for industrial seedling culture of Rapana venosa and a use method of the devices. The egg bag collecting device comprises attachment devices and a floating frame, the hatching device comprises floating balls, supports and attachment devices, the floating balls are connected to tops of the supports, and the attachment devices and the supports are connected through tail hooks; during egg bag collection, the attachment devices are fixed on the inner wall of the floating frame for culturing parents of Rapana venosa, the attachment devices on the top layer are kept underwater, and the attachment devices with egg bags attached are replaced with new attachment devices with no egg bags attached and then taken out of the floating frame after egg collection; during egg bag hatching, the attachment devices with egg bags attached are hung on the tail hooks of the supports and suspended in a hatching tank for egg bag hatching by the aid of the supports and the floating balls. By means of the devices, the egg bags of the Rapana venosa can be collected conveniently and efficiently and prevented from being damaged due to manual separation of the egg bags, so that the hatching process of the egg bags is finished smoothly.

Description

technical field [0001] The invention belongs to the field of industrial seed production of aquaculture, in particular to an egg bag collection and hatching device for industrial seedling cultivation of red snails and a method for using the same. Background technique [0002] Rapana venosa, commonly known as “snail” and “conch”, belongs to the phylum Mollusca, Gastropoda, Murexidae, and the genus Rapana venosa. The adult shell height can reach 7-12cm. It is found in the Bohai Sea and the Yellow Sea of ​​my country. distributed. Its feet are particularly fat, delicious and nutritious, and it is very popular among people with high economic value. In recent years, with the decline of offshore resources and the popularity of domestic and foreign markets, the economic value of snails has continued to increase. The current live price is 20-40 yuan / kg. [0003] At present, there is a great market demand for red snails in my country's Bohai Sea and the Yellow Sea coast. Since the 19...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an egg bag collection and hatching device for industrialized seedling cultivation of red snails and its use method, which solves the problem of efficient and non-destructive collection and incubation of the egg bags when the red snails lay eggs

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