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A method of artificially inducing the synchronous development of the gonads of the broodstock

A technology of artificial induction and synchronous development, applied in fish farming, application, climate change adaptation, etc., to achieve the effect of improving egg pregnancy rate and fertilization rate, and promoting synchronous development of gonads

Active Publication Date: 2015-11-18
TONGLING RUIPU PEONY IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the synchronous development of the gonads of the earfish

Method used

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Embodiment Construction

[0018] A method for artificially inducing the synchronous development of gonads of parent fishes of chrysalis, comprising the following steps:

[0019] (1) Broodstock selection

[0020] The broodstock comes from the surrounding natural lakes, and the 2nd-year-old fish with strong physique, complete scales, no disease and injury, body length > 500mm, and weight > 3g are selected as broodstock. The ratio of male to female is 1:2. Bath for 5 minutes to disinfect the fish body;

[0021] (2) Breeding of broodstock

[0022] Put the broodstock in a breeding pond with an area of ​​1.2 mu and a water depth of 1.5 meters for adaptive temporary breeding for 1 month. The stocking density is 1500 fish / mu. During the temporary breeding, the amount of pellet feed fed is 1.5% of the fish's body weight, and the water is changed every day. 50%;

[0023] (3) Method for synchronous development of parent fish gonads

[0024] ① The water temperature is kept stable at 20°C, and the temperature c...

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Abstract

The invention discloses a method for artificially inducing parent pseudorasbora parva gonad synchronous development. The method comprises the steps of parent fish selecting, parent fish breeding, parent fish gonad synchronous development and the like. According to the method, through gradual temperature control, gradual lighting adjustment and appropriate feed putting, the purpose of promoting pseudorasbora parva gonad synchronous development is achieved, the problem of sperm and egg malformation caused by rapid environment changes is avoided, the brood rate and the fertility rate are improved and a technical basis is provided for pseudorasbora parva artificial breeding.

Description

technical field [0001] The invention relates to a method for artificially inducing the synchronous development of the gonads of broodstock of chrysalis, belonging to the technical field of aquaculture. Background technique [0002] Wheat ear fish (Pseudoras boraparva) is a small fish widely distributed in fresh water. In the past, people often regarded it as a small wild fish, which was not paid attention to by people. They often tried to remove it when clearing ponds. With the progress, people have gradually realized that the wheat ear fish can not only be used as a bait fish to become a natural palatable bait for some carnivorous fish, such as mandarin fish, sand pond snakehead, etc., but also because of its high economic value, the market price is 28 yuan / kg, has broad prospects in aquaculture. So far, no research has been reported on the synchronous development of gonads. Contents of the invention [0003] The purpose of the present invention is to provide a method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 周洵陈冬林王贵元马志宏章星明沈蓓杰冯毅胡松学俞爱萍柴继芳胡骏邓成方金家红王美娟朱园贞王骏俊贡见辉
Owner TONGLING RUIPU PEONY IND DEV
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