Efficient and comprehensive pearl giant grouper breeding method

Abstract

The invention relates to an efficient and comprehensive pearl giant grouper breeding method. The method includes the following steps of firstly, cleaning, airing and disinfecting a breeding pond before breeding is started, and adding water and applying a fertilizer; secondly, stocking pearl giant grouper; thirdly, stocking whiteleg shrimps, catching and selling the whiteleg shrimps after the whiteleg shrimps are bred for 50-80 days, and stocking the next crop of whiteleg shrimps 6-15 days after the last crop of whiteleg shrimps are caught, wherein the stocking density of the pearl giant grouper is 0.5-4 times that of the whiteleg shrimps; fourthly, breeding large algae and / or high-level aquatic plants in the pond; fifthly, evenly putting a plurality of bred animal hiding boxes in the pond,wherein each bred animal hiding box is of a hollow polyhedron structure, each face of each hiding box is provided with a plurality of holes, and the holes are not completely the same in size. The method has the advantages that the water body utilization rate and breeding efficiency can be increased, and the killing and devouring of the pearl giant grouper are reduced.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a high-efficiency comprehensive culture method for pearl gentian grouper. Background technique [0002] Pearl gentian grouper, also known as dragon tiger grouper or pearl grouper, is a new hybrid species of grouper bred from gentian grouper (male) and tiger grouper (female). It has tender meat, fast growth, and strong disease resistance. The shape of the tabby head and gentian tail shows the hybrid advantage, the market price of commercial fish is high, and it can also be used as ornamental fish, with a broad market prospect. At present, the pearl gentian grouper has been successfully artificially bred, forming a large-scale culture, and due to the fast growth and strong disease resistance of the pearl gentian, it quickly accounts for 70% of the grouper breeding in Hainan, and has become the first choice for grouper farming. first breed. [0003] However, the tr...

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Problems solved by technology

[0003] However, the traditional artificial breeding mode has the problems of low utilization rate of water body space and a single species of culture. At present, the artificial breeding of pearl gentian grouper mainly adopts a single extensive culture mode. The benefit is not high, and it is easy to cause pollution to the environment: in the single-scale extensive farming mode, the fish excrement and surplus bait produced during the fish farming process will accumulate in the water body, which will lead to a drop in dissolved oxygen in the water body, which will cause water pollution. Eutrophication, at the same time, easily causes fish diseases, which seriously affects the economic and ecological benefits of aquaculture, and the discharge of aquaculture sewage is not conducive to the sustainable development of the marine environment

[0004] In addition, in the traditional grouper breeding process, grouper with widely different individuals will kill each other, and broodstock may devour fry

In order to avoid this problem, the breeders usually stock different sizes of grouper in different ponds. However, due to individual differences and differentiation, some groupers grow fast and some grow slowly during the breeding process. After breeding for a period of time, it is very easy to have great differences among individuals again. If the nets are pulled to catch and divide the ponds at this time, it will not only consume a lot of manpower and material resources, but also cause traumatic infection of the grouper in the process of pulling the nets and dividing the ponds. , easy to get sick when adapting to Xintang

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