CN206686912U - A kind of loach fry hatching system - Google Patents
A kind of loach fry hatching system Download PDFInfo
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- CN206686912U CN206686912U CN201720461454.8U CN201720461454U CN206686912U CN 206686912 U CN206686912 U CN 206686912U CN 201720461454 U CN201720461454 U CN 201720461454U CN 206686912 U CN206686912 U CN 206686912U
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- loach
- incubation tank
- hatching
- cistern
- water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The utility model provides a kind of loach fry hatching system, including cistern, water pump and incubation tank, poultry pond is used to hatch water body precipitation sterilization, all incubation tank Spawning waters and circulation are provided, the bottom of incubation tank is provided with hatching discharge outlet, impurity filtering net is provided with hatching discharge outlet, hatching discharge outlet is extended in cistern by supply channel, the water pump is arranged on the supply channel, one end of water inlet pipe is provided with shower nozzle and extended in incubation tank, it is in 120 degree of flat arcs to hatch trench bottom, shower nozzle is relatively parallel with the bottom of incubation tank, incubating oosperm water body is set to exchange without dead angle, ensure incubating oosperm water body switching requirement, the other end of water inlet pipe is communicated to the delivery port of cistern.To solve loach parent culture quality problem under the resources characteristic of Montanic ponds, while Montanic ponds loach artificial culture and efficiently breeding flow are formd, to improve prior art, lift culture benefit.The utility model belongs to agriculture technical field of aquaculture.
Description
Technical field
The utility model belongs to agriculture technical field of aquaculture, and in particular to one kind improves mountain area loach rate of fertilization and incubated
The method of rate.
Background technology
Loach is the famous-brand and high-quality aquatic products of tradition, is distributed widely in all parts of the country, and there are rice field, the pond of water in especially south throughout the year
In.The unique geographic climate in Guizhou Province is all well suited for the cultivation of loach, and loach artificial farming has become agriculture inside the province at present
One of the method for getting rich at family, there is open country in more mountain region gullies of Karst Area of Guizhou landforms and water resource is enriched in many peasant household rice fields
Raw loach, this indicates that the weather conditions of Guizhou mountainous area are adapted to loach growth.Guizhou Qiu Xing aquatic products Co., Ltd is in mud for many years
The loach high density pond cultivation technology of suitable Guizhou resources characteristic has been found out in loach cultural technique, has created 120,000 tails/mu
High-density breeding record.The high-density breeding technology maturation of loach, the wilderness demand to seed is caused, but due to our province mud
Loach artificial propagation techniques fall behind, the limitation of hill-land resource, and breeding incubation rate is in 50% horizontal, and the whole province various regions every year about need to be from
It is higher that about 10,000,000 tail mud fish fries, the cost of seed are introduced outside the province, and quality controlled in other people, this all limits loach breeding industry and existed
The development of Guizhou mountainous area.
Loach artificial propagation techniques are updated, and loach rate of fertilization improves constantly.Application publication number is CN 101647418
A kind of method for improving fertility rate of loach roe disclosed in A Chinese invention patent, although this method passes through to the female pin of loach two
Injection makes it discharge the maximum amount of mature egg, while increases male loach ratio to improve Fertilized Eggs of Loach, but the patent needs to repeat
Injection, and the natural mating in net cage, therefore it is required repeat more, natural mating is time-consuming longer, and this is all to breeding what is come
Embryonated egg increases certain managing risk, and incubating oosperm time control is difficult to uniformly hold, and breeds embryonated egg rate all
Also room for promotion.
Research at present on loach artificial propagation is a lot, but comes for the loach artificial propagation of Typical Karst Area of Guizhou mountain area
Say, Guizhou Province mountain area formula pond layout that there is natural potential energy, mountain spring water aboundresources, water temperature is throughout the year stable at 15~22 DEG C, because
This requires that mountain area loach parent fish rearing uses specific aim strategy；Summarized the experience simultaneously by artificial propagation for many years, it is raw to remove firmly
Loach reproduction technique is passless for the breeding of mountain area loach to set outside the province.
The content of the invention
The utility model is directed to mountain area loach pond culture, there is provided a kind of loach fry hatching system, to solve mountain area pond
Loach parent culture quality problem under the resources characteristic of the pool, while form Montanic ponds loach artificial culture and efficiently breeding stream
Journey, to improve prior art, lift culture benefit.
To achieve the above object, there is provided a kind of loach fry hatching system, including cistern, water pump and incubation tank, raise water
Pond is used to hatch water body precipitation sterilization, there is provided all incubation tank Spawning waters and circulation, the bottom of incubation tank are provided with hatching row
The mouth of a river, hatch and impurity filtering net is provided with discharge outlet, hatching discharge outlet is extended in cistern by supply channel, the water pump
It is arranged on the supply channel, one end of water inlet pipe is provided with shower nozzle and extended in incubation tank, and hatching trench bottom is flat in 120 degree
Arc, shower nozzle is relatively parallel with the bottom of incubation tank, incubating oosperm water body is exchanged without dead angle, it is ensured that incubating oosperm water body is handed over
Demand is changed, the other end of water inlet pipe is communicated to the delivery port of cistern.
In foregoing hatching system, hatching overfall is additionally provided with the upside of incubation tank in side wall, hatches overfall in incubation tank
Downside be additionally provided with screen pack；
In foregoing hatching system, each cistern is correspondingly arranged on multiple incubation tanks.
Its parent culture and induced spawning method are as follows：Loach parent is selected and male and female point pond is cultivated, is being bred
The previous moon in season, which carries out running water, to stimulate to strengthen gonad development, using by 400~500IU/kg fishes with chorionic gonadotrophin HCG and
By 6~8ug/kg luteinizing hormone releasing hormone LHRH_A2Dissolve in simultaneously in the domperidone DOM by 4~5mg/kg
Used as ocyodinic, collect ripe essence, ovum after hastening parturition for a period of time, combined using dry method and semidry method and carry out artificial insemination.
Loach parent is selected and male and female point pond is cultivated, so that close loach specification is in 8-10 tails/kg, dam loach total length 25
~27cm, 100~120g of whose body weight, male close loach total length 27~30cm, 80~100g of whose body weight, it is 4 by female-male proportion:1,
Male and female parent loach carries out a point pond and cultivated, breeding density is every mu 250-300 kilograms, 30 days before breeding, fills new water through hand picking
Long stream stimulates development, while strengthens antenatal reinforced cultivating；
The new water running water of foregoing filling stimulate be water exchange capacity be 3~3.5 times/h to keep running water to stimulate, water body water
Temperature is maintained at 16~22 DEG C, and pH value is 7.0~8.0, and dissolved oxygen is more than 7.mg/L, and cultivation density is 3~5kg/m3, feed high egg
White special feed, forage protein 45%, feedstuff feeding amount press the 2~3.5% of parent's body weight daily
Described hasten parturition comprises the following steps that：Dorsal fin base portion shot ocyodinic in both sides to the rear, male and female parent are used to close loach
The same position of loach, the male close loach of dosage halves, male after injection is first female, and ovum artificial collection row's essence is carried out after 17~18h of drug effect reflecting time.
It for every 20 tail dam loach ovum is one group that the Artificial insemination procedures that dry method and semidry method combine are used described in this method,
Every group at once straight by seminal fluid in stainless steel container with the close tail of loach 6~8 of hero, the dam loach ovum collecting for the maturation that will first hasten parturition
Run in ovum, while do not stopped with feather to be gently mixed ovum 3~5mins of liquid, promote smart ovum fully to contact, then press smart oophyte again
The amount of product 1/2 adds clear water activation sperm, outwells suspension after continuing stir about 3min, is put into incubation tank and hatches；
Hatching system, with hatching cycling use of water is added after 30pp Eusols soaking disinfection, rinsing, is hatched before hatching
During do not remake change water to process, hatching amount is 1000~1500g/m of embryonated egg3, current size ensures that embryonated egg exists during hatching
Can normally it be rolled in incubator, at 20~24 DEG C, dissolved oxygen control is less than 4 DEG C in more than 7.0mg/L, day and night temperature for water temperature control
Under conditions of, brooding time is 40~42h.
Compared with prior art, the utility model carries out loach parent fish rearing using the method for running water technology, and by dividing
Pond carries out artificial propagation after cultivating promotion parent population gonad development.In combination with mountain area natural conditions, pointedly using independent
Hatching system, it further increasing the efficiency of mountain area loach breeding.The utility model is repaiied in Guizhou Qiu Xing aquatic products Co., Ltd
Success is efficiently bred in literary loach nursery base, is produced 18,140,000, embryonated egg altogether within 2016, fertilization rate reached 93.4%, is gone out young seedling altogether
16400000 tails, incubation rate 96.8%.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of hatching system described in the utility model；
Fig. 2 is the structural representation of incubation tank.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, the utility model will be made into one below
Step ground is described in detail,
Embodiment：
1 and Fig. 2 referring to the drawings, the present embodiment provide a kind of loach fry hatching system, including cistern 1, water pump 2 and incubate
Change groove 3, poultry pond 1 is used to hatch water body precipitation sterilization, there is provided all incubation tank Spawning waters and circulation, each cistern 1 are right
Multiple incubation tanks 3 should be provided with, the bottom of incubation tank 3 is provided with hatching discharge outlet 31, hatches and be provided with impurity at discharge outlet 31
Screen pack, hatching discharge outlet 31 are extended in cistern 1 by supply channel, and the water pump 2 is arranged on the supply channel, water inlet
One end of pipe 4 is provided with shower nozzle 41 and extended in incubation tank 3, and the bottom of incubation tank 3 is in 120 degree of flat arcs, shower nozzle 41 and incubation tank 3
Bottom is relatively parallel, incubating oosperm water body is exchanged without dead angle, it is ensured that incubating oosperm water body switching requirement, water inlet pipe 4
The other end is communicated to the delivery port of cistern 1, and hatching overfall 32 is additionally provided with the upside side wall of incubation tank 3, is incubated in incubation tank 3
The downside for changing overfall 32 is additionally provided with screen pack 5, and the bottom of cistern 1 is provided with cement base 6.
Experimental example：
This experimental example is to be carried out in Guizhou Qiu Xing aquatic products Co., Ltd loach nursery base of improving literature for 2015~2016 years, is had
Body step is as follows：
First, close loach is cultivated
(1) close loach selection：8~September in 2015 is per kilogram 8-10 tails by specification, dam loach total length 25-27cm, individual body
100-120 grams of weight, male close loach total length 27-30cm, 80-100 grams of whose body weight, female-male proportion 4:1 selects close loach.
(2) feedstuff feeding：In October, 2015~2016 year 2 months, male and female parent loach carry out a point pond and cultivated, train through hand picking
It is long 25m × wide 8m × deep 1m to educate pond specification, and breeding density is every mu 250-300 kilograms, and fortification cultivation is carried out to close loach,
Nurturing period feeds high protein feed, adds up to feed feed by the amount of gross weight 2~3% four times per day.
(3) running water technology：3~April in 2016, filling new water running water stimulates, and injection water body water temperature is maintained at 16~22
DEG C, pH value is 7.0~8.0, and dissolved oxygen is more than 7.0mg/L water exchange capacities and controls that to feed high protein special simultaneously in 3~3.5 times/h
With feed (forage protein 45%), feed is fed by the amount of gross weight 3~3.5% daily, promotes close loach gonad development.
2nd, artificial induced spawning
Use 450IU/kg fishes chorionic gonadotrophin HCG and the luteinizing hormone releasing hormone LHRH_A by 7ug/kg2
Dissolve in simultaneously and ocyodinic is used as in the domperidone DOM by 5mg/kg, dorsal fin base portion both sides one to the rear are used to male and female parent loach
Secondary injection, male injection after first female, it is in 45 DEG C to enter at pin with dorsal part, enters pin 0.2~0.3cm of depth, and injection amount of solution is 0.2~
0.3ml/ tails, male loach halve, and inject during afternoon 16~18, male after injection is first female, and parent temporarily supports respectively after injection, stimulation by running water,
Drug effect 17~18h of reflecting time, ovum artificial collection row's essence is carried out during the next morning 10~11.
It for every 20 tail dam loach ovum is one group that the Artificial insemination procedures that dry method and semidry method combine are used described in this method,
Every group at once straight by seminal fluid in stainless steel container with the close tail of loach 6~8 of hero, the dam loach ovum collecting for the maturation that will first hasten parturition
Run in ovum, while do not stopped with feather to be gently mixed ovum 3~5mins of liquid, promote smart ovum fully to contact, then press smart oophyte again
The amount of product 1/2 adds clear water activation sperm, outwells suspension after continuing stir about 3min, is put into incubation tank and hatches.
3rd, spawning and hatching
By the ovum collecting of 20 tail parent loach after the stainless steel washbasin of sterilization and drying, then directly the male close loach sperm of 8 tails is squeezed
Enter in ovum, while do not stopped with feather to be gently mixed ovum liquid 3mins, promote smart ovum fully to contact, then again by smart egg volume 1/2
Amount adds clear water activation sperm, outwells suspension after continuing stir about 3min, finally embryonated egg is put into hatching system and hatched,
Hatching amount is embryonated egg 1500g/m3.Current are regulated in hatching process, can normally be rolled and be defined by embryonated egg, while are removed dead
The impurity such as ovum.Hatch water temperature control at 20~24 DEG C, dissolved oxygen control is less than 4 DEG C of condition in more than 7.0mg/L, day and night temperature
Under, brooding time is 40~42h.
4th, result of implementation
Under the conditions of same breeding farm, compared with 2015 using conventional method breeding, hasten parturition within 2016 and imitated obtained by close loach
Fruit is significantly improved.
2015 and spawning effect contrast table in 2016
To sum up, hasten parturition altogether within 2016 267.2 kilograms of dam loach, count 3473 tails, 18,140,000, common property ovum, per tail eggs on average
Amount is up to 5223.Hasten parturition altogether male close 295 kilograms of loach, count 4126 tails, arrange smart 17138ml altogether.Embryonated egg 1694.28 ten thousand is obtained altogether
Grain, rate of fertilization 93.4.%, hatches the young tail of seedling 16,400,000, incubation rate 96.8% altogether.
The utility model is discussed in detail the above, but not limited to this, all to be carried out according to the utility model principle
Various change all should be the scope of protection of the utility model.
Claims (3)
- A kind of 1. loach fry hatching system, it is characterised in that：Including cistern (1), water pump (2) and incubation tank (3), pond is raiseeed (1) it is used to hatch water body precipitation sterilization, there is provided all incubation tank Spawning waters and circulation, the bottom of incubation tank (3), which is provided with, incubates Change discharge outlet (31), hatching discharge outlet (31) place is provided with impurity filtering net, and hatching discharge outlet (31) is extended by supply channel In cistern (1), the water pump (2) is arranged on the supply channel, and one end of water inlet pipe (4) is provided with shower nozzle (41) and extended In incubation tank (3), incubation tank (3) bottom is in 120 degree of flat arcs, and shower nozzle (41) is relatively parallel with the bottom of incubation tank (3), water inlet pipe (4) the other end is communicated to the delivery port of cistern (1).
- A kind of 2. loach fry hatching system according to claim 1, it is characterised in that：On the upside of incubation tank (3) in side wall also Hatching overfall (32) is provided with, hatches in incubation tank (3) on the downside of overfall (32) and is additionally provided with screen pack (5).
- A kind of 3. loach fry hatching system according to claim 1, it is characterised in that：Each cistern (1) is correspondingly arranged There are multiple incubation tanks (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720461454.8U CN206686912U (en) | 2017-04-28 | 2017-04-28 | A kind of loach fry hatching system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720461454.8U CN206686912U (en) | 2017-04-28 | 2017-04-28 | A kind of loach fry hatching system |
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| CN206686912U true CN206686912U (en) | 2017-12-01 |
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| CN201720461454.8U Expired - Fee Related CN206686912U (en) | 2017-04-28 | 2017-04-28 | A kind of loach fry hatching system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107047401A (en) * | 2017-04-28 | 2017-08-18 | 贵州省水产研究所 | A kind of mountain area loach parent culture and induced spawning method and hatching system |
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- 2017-04-28 CN CN201720461454.8U patent/CN206686912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107047401A (en) * | 2017-04-28 | 2017-08-18 | 贵州省水产研究所 | A kind of mountain area loach parent culture and induced spawning method and hatching system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20180428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |