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Method for improving survival rate and bait intake of eriocheir hepuensis by controlling trichlorfon concentration

A technology of mitten crab and trichlorfon, applied in fish farming, application, climate change adaptation, etc., can solve the problem of little research on Hepu mitten crab

Inactive Publication Date: 2017-12-12
QINZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In summary, the existing problems in the prior art are: the impact of trichlorfon on the survival and bait intake of Hepu mitten crabs has not been reported at home and abroad, and there are very few studies on Hepu mitten crabs at home and abroad.

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  • Method for improving survival rate and bait intake of eriocheir hepuensis by controlling trichlorfon concentration
  • Method for improving survival rate and bait intake of eriocheir hepuensis by controlling trichlorfon concentration
  • Method for improving survival rate and bait intake of eriocheir hepuensis by controlling trichlorfon concentration

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] like figure 1 As shown, the method for improving the survival rate and bait intake of Hepu mitten crabs by controlling the concentration of trichlorfon provided by the embodiments of the present invention comprises the following steps:

[0028] S101: The test set the test concentration gradient according to the arithmetic sequence and added a control group with a concentration of 0 mg / L. After the preliminary test, 7 trichlorfon concentrations of 0mg / L, 0.5mg / L, 3.0mg / L, 5.5mg...

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Abstract

The invention belongs to the technical field of eriocheir hepuensis breeding and discloses a method for the improving the survival rate and bait intake of eriocheir hepuensis by controlling trichlorfon concentration. According to the method, the safe concentration of trichlorfon is 0.5469 mg / L, LC50 for the eriocheir hepuensis is 5.469 mg / L when being up to 96 hours, the LC50 of the trichlorfon for the eriocheir hepuensis is 11.119 mg / L, 8.831 mg / L, 6.738 mg / L, 6.577 mg / L, 6.153 mg / L, 5.706 mg / L and 5.469 mg / L respectively when being up to 24 hours, 36 hours, 48 hours, 60 hours, 72 hours, 84 hours and 96 hours. The bait intake and the breeding survival rate of eriocheir hepuensis can be improved by controlling the trichlorfon concentration according to the method.

Description

technical field [0001] The invention belongs to the technical field of breeding Hepu mitten crabs, and in particular relates to a method for improving the survival rate and bait intake of Hepu mitten crabs by controlling the concentration of trichlorfon. Background technique [0002] Hepu velvet crab (Eriocheirhepuensis), commonly known as hairy crab, stone crab, and crab, belongs to the family Crabidae and the genus Eriocheir hepuensis. It is an economic mitten crab found in the Beibu Gulf area in the 1980s. It is mainly produced in Guangxi Nanliu River, Qin River, Gongguan River, Maoling River, Beilun River and other rivers flowing into the sea. The weight of mature individuals is generally 100-150g, and the largest individual is 450g. Due to the excellent variety of the crab, large individuals, fast growth, short life cycle, delicious meat, rich nutrition, unique flavor and other advantages, it is favored by consumers and farmers. The head and chest of Hepu velvet crab i...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 廖永岩李伟峰方怀义白丽蓉王鹏良
Owner QINZHOU UNIV
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