Breeding method for parabotia fasciata dabry fry

A technology of paraloach and seedlings, applied in fish farming, application, climate change adaptation, etc., can solve the problem of resource decline of paraloach, achieve high-density, safe and low-cost breeding, neat maturation time, Suitable for a wide range of effects

Inactive Publication Date: 2016-02-24
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of declining resources of Paraloach variegata in my country, the invention provides a breeding method for seedlings of Paraloach variegata. The parent fish cultivated by the method of the present invention have a high gonad maturity rate, neat maturity, good semen quality, and artificially induced labor. The spawning time of broodstock is neat, the fertilization rate is high, the hatching rate of fertilized eggs is high, and the seedling quality of breeding is good

Method used

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  • Breeding method for parabotia fasciata dabry fry
  • Breeding method for parabotia fasciata dabry fry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1 is equipped with the culture system of water purification facility

[0054] Such as figure 1 As shown, the system of the present invention includes: a reservoir 1, a replenishment pond 2, a cultivation pond 3, and a water treatment pond 4 arranged sequentially from top to bottom, and for supporting the reservoir 1, replenishment pond 2, and cultivation pond 3 and the device of the three-dimensional multi-layer stainless steel frame 5 of the water treatment tank 4 and the filter unit 41, biological purification unit 42, adsorption unit 43, disinfection unit 44 and circulation pump 45 .

[0055] Wherein, the filter unit 41 is connected with the sewage outlet of the cultivation pond 3 through a water pipe, and the sewage in the cultivation pond 3 is discharged into the water purification system, and the water outlet of the circulating pump 45 is connected with the water outlet of the cultivation pond 3 through a water pipe. The water inlet of the storage tan...

Embodiment 2

[0072] The purification treatment of embodiment 2 aquaculture wastewater

[0073] Such as figure 2 The purification flow chart of the shown aquaculture wastewater includes:

[0074] Step S101, filtration treatment: the aquaculture wastewater discharged from the water outlet is treated by a filter device to remove large-scale sediments such as feces and residual bait in the wastewater, so that the aquaculture water becomes clear and transparent. In order to improve the purification effect, the filter device needs to be cleaned every day.

[0075] Step S102, biological purification treatment: the filtered aquaculture wastewater passes through a biological purification device to take the nitrogen in the aquaculture wastewater out of the ecosystem and eliminate the ammonia nitrogen produced by the decomposition of organic matter.

[0076] Step S103, adsorption treatment: the biologically purified aquaculture wastewater passes through an adsorption device to absorb small-volume ...

Embodiment 3

[0080] Embodiment 3 utilizes wild piebald loach to cultivate seedlings

[0081] 1. Selection of broodstock

[0082] From May to July in 2012 and 2013, the adult fishes of wild paraloach with a body length of 13-18 cm and a body weight of 13.5-82 g were collected from the Zizhong-Longchang section of the Yangtze River tributary-Tuojiang River, and were stored in a laboratory plastic greenhouse with a size of 4m×2.5 After one year of domestication and cultivation in the m×0.8m cement pond, they were transferred to the breeding system as broodstock in 2013 and 2014 respectively.

[0083] 2. Breeding of broodstock

[0084] The female broodstock and male broodstock obtained in step 1 are stocked in the culture system provided in Example 1 at a ratio of 1:1 to 1.5, and the culture density is 20 to 40 fish / m 2 .

[0085] 2.1 Feed feeding management

[0086] During the cultivation process, from mid-December to March of the next year, feed the broodstock once at 12:00 noon the next...

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Abstract

The invention discloses a breeding method for parabotia fasciata dabry fry, and relates to the field of fry breeding. The method includes the steps of breeding parent parabotia fasciata dabry in a breeding pool provided with a water quality purification breeding system, breeding parent parabotia fasciata dabry through parent breeding and managing, obtaining female parent parabotia fasciata dabry and male parent parabotia fasciata dabry, obtaining parabotia fasciata dabry fertilized eggs after conducting spawning induction and insemination on the obtained female parent parabotia fasciata dabry and male parent parabotia fasciata dabry, and obtaining parabotia fasciata dabry fry after the obtained parabotia fasciata dabry fertilized eggs are hatched in a hatching tank for 22-26 hours. Parent parabotia fasciata dabry bred through the method is high in gonad maturing rate, neat in maturity and good in seminal fluid quality, parent parabotia fasciata dabry artificially spawned is neat in egg laying time, high in fertilization rate, high in fertilized egg hatching rate and good in bred fry quality.

Description

technical field [0001] The invention relates to the field of fish seed propagation, in particular to the propagation of paraloach seedlings. Background technique [0002] Parabotia fasciata belongs to Cypriniformes, family Cobitidae, subfamily Botiinae, genus Parabotia, and is a unique fish in China. The spawning period of Paraloach is from mid-to-late April to early July, and it is a one-off spawning fish. Paraloach variegata produces floating eggs, the eggs are yellow-green, and the fertilized eggs hatch at about 28°C for 12 hours. Under its wild conditions, the hatching of fry needs to be carried out in river sections with high flow velocity and long length. In recent years, due to cruel fishing, water conservancy construction and sand mining operations that have damaged its breeding environment and feeding grounds, the distribution range of Paraloach variegata has gradually shrunk, and the amount of wild resources has declined significantly. The artificial propagation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 谢碧文王永明齐泽民岳兴建王淯陶敏李斌黄泽金邹远超王芳覃川杰文正勇李华涛李锐袁登越魏小岚
Owner NEIJIANG NORMAL UNIV
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