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A kind of breeding method of wide-body sand loach seed

A technology of sand loach and wide body, which is applied in the breeding field of wide body sand loach seedlings, can solve problems such as the decline of wide body sand loach resources, achieve high-density, safe and low-cost breeding, increase breeding volume, and save water resources Effect

Active Publication Date: 2019-06-04
NEIJIANG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of declining resources of wide-body loach in my country, the present invention provides a breeding method for seedlings of wide-body loach. The broodstock cultivated by the method of the present invention has high gonad maturity rate, neat maturity, good semen quality, and artificially induced broodstock The spawning time 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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  • A kind of breeding method of wide-body sand loach seed
  • A kind of breeding method of wide-body sand loach seed
  • A kind of breeding method of wide-body sand loach seed

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1 is equipped with the culture system of water purification facility

[0055] Such as figure 1As 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 .

[0056] 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

[0073] The purification treatment of embodiment 2 aquaculture wastewater

[0074] Such as figure 2 The purification flow chart of the shown aquaculture wastewater includes:

[0075] 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.

[0076] 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.

[0077] Step S103, adsorption treatment: the biologically purified aquaculture wastewater passes through an adsorption device to absorb small-volume ...

Embodiment 3

[0081] Embodiment 3 utilizes wild wide-body sand loach to cultivate seedlings

[0082] 1. Selection of broodstock

[0083] From May to July in 2012 and 2013, wild wide-bodied sand loach adult fish with a body length of more than 10 cm and a weight of more than 15 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×2.5m×0.8 After one year of domestication and cultivation in m cement ponds, they were transferred to the culture system in 2013 and 2014 as broodstock for cultivation.

[0084] 2. Breeding of broodstock

[0085] The female broodstock and male broodstock obtained in step 1 are stocked at a ratio of 1:1 to 1.5 in the cultivation pond of the culture system provided in Example 1 for cultivation, and the culture density is 20 to 40 fish / m 2 .

[0086] 2.1 Feed feeding management

[0087] During the cultivation process, from mid-December to February of th...

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Abstract

The invention discloses a Sinibotiareevesa seedling breeding method, and relates to the fish seedling breeding field; the method comprises the following steps: culturing Sinibotiareevesa parent fish in a culture pond having a water quality purifying culture system; using parent fish culture management mode to culture the parent fish, thus obtaining female and male parent fish; carrying out spawning induction and insemination treatment for the obtained female and male parent fish, thus obtaining Sinibotiareevesa oosperm; hatching the obtained Sinibotiareevesa oosperm in an incubator for 26-29 hours, and obtaining Sinibotiareevesa seedlings. The parent fish obtained by the novel method is high in sexual gland maturation rate, tidy in maturity, and good in seminal fluid; the artificially spawning induction parent fish is tidy in oviposition time, high in fecundatin rate, high in oosperm hatching rate, and good in breeding seedling quality.

Description

technical field [0001] The invention relates to the field of fish seed propagation, in particular to the propagation of wide-body loach seed. Background technique [0002] Wide body loach ( Sinibotia reevesae ) belongs to Cypriniformes (Cypriniformes), family Cobitidae and subfamily Botiinae, and is a unique fish and an important economic fish in the upper reaches of the Yangtze River. The spawning period of wide-body sand loach is from late May to early August, and it is a one-time spawning fish. The wide-body sand loach produces sinking eggs, which are yellow-green or gray-yellow, and the fertilized eggs hatch at about 24°C for 26-28 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 their breeding environment and feeding grounds, the distribution range of wide-body sand l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K63/04
CPCA01K61/00A01K63/04Y02A40/81
Inventor 谢碧文王永明王芳齐泽民邹远超陶敏岳兴建覃川杰黄泽金李斌文正勇李华涛李锐王淯袁登越魏小岚
Owner NEIJIANG NORMAL UNIV
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