Method for controlling ichthyophthirius during trachinotus-ovatus cage culturing

A net cage culture and small melon worm technology, applied in the field of fish farming, can solve the problems of death, infection of small melon worms, disease occurrence, etc., and achieve the effect of reducing stress response

Active Publication Date: 2017-08-11
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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Problems solved by technology

[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a method for preventing and treating small melon insects in cage cultured golden pompano, aiming at solving the problem of infection in golden pomfret breeding process. The problem of disease or death caused by small melon insects

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  • Method for controlling ichthyophthirius during trachinotus-ovatus cage culturing
  • Method for controlling ichthyophthirius during trachinotus-ovatus cage culturing
  • Method for controlling ichthyophthirius during trachinotus-ovatus cage culturing

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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the figure). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions in...

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Abstract

The invention discloses a method for controlling ichthyophthirius during trachinotus-ovatus cage culturing. The method includes the steps of observing and preventing, making of a netting device for controlling the ichthyophthirius in the mode that the trachinotus ovatus is soaked with fresh water, fresh water soaking, medicine treating, physical enhancing and the like. According to the method, the trachinotus ovatus is soaked with fresh water, cryptocaryon irritans loses the adsorption capacity in fresh water through sudden changing of osmotic pressure and is separated from a fish body, and if soaking time is long, polypide cells can be ruptured and died; after the ichthyophthirius is infected to the fish body and developed and matured, the ichthyophthirius is separated from a host after 3 days to 5 days, a cyst is formed and is subjected to asexual reproduction to be split into a plurality of larvae capable of infecting the fish body; if a cage is moved to a deep sea area with the good water quality and the high flowing speed, the cyst can be separated from the host to be taken away by water flow, and the controlling effect is better achieved. By means of the method, it can be achieved that the trachinotus ovatus is soaked with fresh water in a sea cage for controlling the cryptocaryon irritans; meanwhile, trachinotus ovatus cannot be directly caught in the whole course, and stress responses caused by catching are reduced.

Description

technical field [0001] The invention relates to the technical field of fish farming, in particular to a method for preventing and treating small melon worms by breeding golden pomfrets in cages. Background technique [0002] Golden pomfret, the scientific name is oval pomfret ( Trachinotus ovatus ), belonging to Perciformes, Trevalidae, Pompano genus, also known as Yellow Pomfret, a wide-salt warm-water fish. Widely distributed in the temperate and tropical seas of the Indian Ocean, the Pacific Ocean and the Atlantic Ocean. With the breakthrough of artificial breeding technology and the development of breeding technology, the golden pomfret can be widely cultivated in the coastal areas of South my country. The golden pomfret has a large amount of exercise and relatively high water quality requirements. It is suitable for High-density cage culture. In 2014, the aquaculture output of golden pomfret in my country exceeded 100,000 tons, which is a very successful species in mari...

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Application Information

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IPC IPC(8): A01K61/13A01K61/60
CPCA01K61/00Y02A40/81
Inventor 黄忠黄小林林黑着虞为周传朋
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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