Bionic water grass

Abstract

The invention provides an artificial sheltering bionic water grass for increasing the breeding rate of macrobrachium nipponense. A main body of the bionic water grass is formed by combining grid structures, bases are arranged at four corners of each grid structure, hooks are further arranged on the bases, the adjacent grid structures are connected through the hooks and the bases, and the main body is further connected with bionic grass bundles through the hooks. The bionic water grass adopting the structure can allow the macrobrachium nipponense to avoid predators and to settle and inhabit at all stages, the survival rate of parents, larvae and postlarva of the macrobrachium nipponense in all periods and at all stages can be increased, the final breeding rate of the macrobrachium nipponense is further increased, and accordingly, the actual yield of young shrimps during artificial breeding is increased. Besides, the bionic water grass further can be used for artificial breeding of commercial prawns, the space utilization rate of a water body is increased, the application water range is wide, the feeding amount of the macrobrachium nipponense per unit water body can be increased, and the yield is further increased.

Description

technical field [0001] The invention relates to an artificial breeding device for Macrobrachium japonicus, in particular to an artificial shelter bionic aquatic plant which can improve the breeding rate of Macrobrachium japonicus. Background technique [0002] Macrobrachium nipponense (Macrobrachium nipponense) belongs to Crustacea, Decapod, Longarm Shrimpidae, Macrobrachium genus, also known as freshwater shrimp, commonly known as river shrimp, is an important freshwater edible shrimp in my country. Its meat is delicious. Fried river shrimp is a dish Widely popular dishes, so the market demand for river prawns is very large, and the economic value is high. However, due to problems such as water pollution and overfishing in recent years, the wild resources of Macrobrachium japonicus have been severely damaged, and the protection of wild resources of freshwater shrimp has been put on the agenda. The traditional production mode of artificially cultivating Macrobrachium japonic...

AI Technical Summary

Problems solved by technology

In the past, when ponds were used to raise seedlings, the method of planting aquatic plants in the pond was also used to provide shelter for them. If it is necessary to plant aquatic plants and achieve a stable density, it is necessary for the aquatic plants to exist stably for a period of time. In actual operation, it is very difficult Difficult to reach

The main difficulties are: first, limited by the species of aquatic plants, photosynthesis of different species of aquatic plants has different requirements for light intensity and photoperiod, different requirements for fertilizer concentration in water, and different requirements for water depth

Therefore, in actual production, it is difficult to obtain the ideal aquatic plant density regardless of single cultivation or interplanting mode, and it will also add a lot of trouble to the management of planting aquatic plants

In addition, it is necessary to regularly check and maintain a certain density of aquatic plants during the breeding period of Macrobrachium japonicus, which increases the workload of breeding personnel

Second, since Macrobrachium japonicus has two breeding seasons from April to September, of which June to July is the peak period, it is difficult to find a species that is not biologically invasive if it is provided with shelter by planting aquatic plants. And it grows extremely fast, and can reach a considerable density of aquatic plants as shelters in a short period of time.

[0005] Due to the existence of the above defects, the breeding success rate of Macrobrachium japonicus has been relatively low in the past, and the seedlings used in production mainly rely on the consumption of wild resources of Macrobrachium japonicus. This method has low yield, resulting in waste of resources, and it is difficult to stably breed good quality. , Shrimp seedlings with uniform specifications

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