Method for breeding pinaeus monodon fries

Abstract

The invention discloses a method for breeding pinaeus monodon fries. The method comprises the following steps of: (1) preparing a bdellovibro nectophore bacterial suspension; (2) putting the bdellovibro nectophore bacterial suspension into a breeding pool to ensure that the content of bdellovibro nectophores in seawater is more than 101pfu / mL, and then aerating for 5-12 hours; (3) putting pinaeus monodon nauplii into the breeding pool with a density of 60-120 thousands / m<3>; (4) in the process of breeding, feeding baits to the pinaeus monodon nauplii at regular intervals, and putting the bdellovibro nectophore bacterial suspension at least every six days with a concentration of higher than 10pfu / mL after the pinaeus monodon nauplii are put into the breeding pool, wherein when the pinaeus monodon nauplii grow for 15 days or the body lengths of all the pinaeus monodon nauplii reach longer than 1 centimeter, the pinaeus monodon fries are obtained. In the invention, the number of times of changing water in the breeding process can be effectively reduced through putting the bdellovibro nectophore bacterial suspension in the process of water quality treatment and the bait putting and scientifically managing the pinaeus monodon fry breeding quality, and even water does not need to be changed, so that the yield of pinaeus monodon fries is improved, and the survival rate and the immunity of the pinaeus monodon fries are improved.

Description

technical field [0001] The invention belongs to the technical field of prawn breeding and seedling cultivation, and relates to a method for raising prawn seedlings of Penaeus monodon by using the bdellovibrio swimming body bacterial liquid. Background technique [0002] The monodon prawn (Penaeus monodon) is also called grass prawn because the juvenile prawns are mostly attached to the seaweed or seaweed in the estuary, and the body color is green. Because of its strong adaptability, fast growth and large individual size, it has become an important breeding object in the world. Compared with other cultured prawns (such as Penaeus villosa, Penaeus orientalis, Penaeus japonicus, etc.), the prelarvae of Penaeus monodon have weaker vitality and lower larval survival rate, so artificial breeding is more difficult. [0003] In the process of raising Penaeus monodon seedlings, larvae diseases often occur. In recent years, due to environmental pollution in the sea area and unstable...

AI Technical Summary

Problems solved by technology

[0006] At present, the application of microecological agents in aquatic fishery is mostly focused on controlling water quality in a short period from seedlings to adults, and most of them are combined with several microbial agents. It is rare to use a single microecological agent in the whole process of raising seedlings. Examples of preparations controlling water quality to improve the survival rate of seedlings, especially there are still no case reports of using Bdellovibrio preparations in the whole process of raising Penaeus monodon seedlings

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