CN110679522A - Breeding method for schizothorax grahami fry opening stage - Google Patents
Breeding method for schizothorax grahami fry opening stage Download PDFInfo
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- CN110679522A CN110679522A CN201911100714.9A CN201911100714A CN110679522A CN 110679522 A CN110679522 A CN 110679522A CN 201911100714 A CN201911100714 A CN 201911100714A CN 110679522 A CN110679522 A CN 110679522A
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- 238000009395 breeding Methods 0.000 title claims abstract description 74
- 241000299980 Schizothorax grahami Species 0.000 title claims abstract description 53
- 230000001488 breeding effect Effects 0.000 claims abstract description 61
- 241000251468 Actinopterygii Species 0.000 claims abstract description 55
- 210000002969 egg yolk Anatomy 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 26
- 235000013336 milk Nutrition 0.000 claims abstract description 21
- 210000004080 milk Anatomy 0.000 claims abstract description 21
- 239000008267 milk Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 11
- 102000002322 Egg Proteins Human genes 0.000 claims abstract description 10
- 108010000912 Egg Proteins Proteins 0.000 claims abstract description 10
- 235000013345 egg yolk Nutrition 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 235000020185 raw untreated milk Nutrition 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 18
- 238000012258 culturing Methods 0.000 claims description 17
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- 235000013601 eggs Nutrition 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 13
- 230000012447 hatching Effects 0.000 claims description 11
- 230000003203 everyday effect Effects 0.000 claims description 9
- 239000011782 vitamin Substances 0.000 claims description 9
- 229940088594 vitamin Drugs 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- 230000002354 daily effect Effects 0.000 claims description 6
- 238000011534 incubation Methods 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 210000004379 membrane Anatomy 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 235000010755 mineral Nutrition 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 230000009182 swimming Effects 0.000 claims description 6
- 229930003231 vitamin Natural products 0.000 claims description 6
- 235000013343 vitamin Nutrition 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000007865 diluting Methods 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims description 3
- 229930003268 Vitamin C Natural products 0.000 claims description 3
- 229930003427 Vitamin E Natural products 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 3
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 3
- 230000036039 immunity Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 150000003904 phospholipids Chemical class 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- 229940126680 traditional chinese medicines Drugs 0.000 claims description 3
- 235000019154 vitamin C Nutrition 0.000 claims description 3
- 239000011718 vitamin C Substances 0.000 claims description 3
- 235000019165 vitamin E Nutrition 0.000 claims description 3
- 229940046009 vitamin E Drugs 0.000 claims description 3
- 239000011709 vitamin E Substances 0.000 claims description 3
- 210000001325 yolk sac Anatomy 0.000 claims description 3
- 230000006806 disease prevention Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 241000595940 Notostraca Species 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000007858 starting material Substances 0.000 abstract description 4
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- 230000004083 survival effect Effects 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008092 positive effect Effects 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention discloses a method for breeding a fish fry of schizothorax grahami at the initial stage, which comprises four steps of material selection, feeding, material feeding amount, feeding period and the like, wherein the breeding step of the fish fry of the schizothorax grahami at the initial stage is to breed the fish fry according to a reasonable feeding proportion, the breeding method breaks through domestic fairy shrimp and feed feeding habits, is a new seedling culture discovery at the artificial seedling culture stage of the schizothorax grahami, and has no reports on domestic and foreign published documents which are the same as the egg yolk and milk breeding method for the fish fry at the initial stage. The new starter raw material for breeding the wild schizothorax grahami fry is found, the diversification of the fry breeding technology in the starter stage is promoted, the breeding technology is continuously improved and innovated, and a set of breeding method suitable for the fry of the schizothorax grahami is practiced.
Description
Technical Field
The invention relates to the technical field of wild fish domestication and reproduction and fresh water culture, in particular to a culture method for schizothorax grahami fry in the initial stage.
Background
The schizothorax grahami is a plant cold water-feeding small fish with impatient temperament, strong jumping ability and strong stress response; the wild fish is difficult to domesticate, low in survival rate, late in sexual maturity, low in fertility, slow in growth, and good for jumping, the consumption of body muscles is large, the yield and quality are affected, how to domesticate and breed the schizothorax grahami manually effectively protects and expands germplasm resources, improves the breeding scale and economic benefit of the schizothorax grahami, and becomes a main direction of research.
At present, the same reports as the yolk and milk breeding method for the schizothorax grahami in the shedding period provided by the invention are not found in documents published at home and abroad, the current domestic breeding habits of fairy shrimp and feed are adopted, the feeding mode is too single, the feeding method is more traditional, certain innovation is absent, the growth period of the schizothorax grahami is slow, the survival rate is low, the invention adopts a new seedling breeding discovery in the shedding period of the milk and yolk breeding and the artificial seedling breeding period of the schizothorax grahami, and the breeding method for the shedding period of the schizothorax grahami is designed aiming at the defects of the existing breeding method.
Disclosure of Invention
Technical problem to be solved
Aiming at the single state without breakthrough innovation in the prior art, the invention provides a breeding method for promoting the hatch of schizothorax grahami fry by using milk and egg yolk, solves the problems of limited hatch raw materials of schizothorax grahami and single hatch technology, and is a breakthrough and bold attempt.
(II) technical scheme
In order to realize the feeding purpose, the invention provides the following technical scheme: a method for culturing Schizothorax grahami fries in the opening stage comprises the following steps:
s1, selecting materials
Selecting fresh native eggs, steaming, taking out yolk, and breaking with a breaker.
Fresh raw milk is selected, filtered and decontaminated, and impurities in the raw milk are removed.
The yolk and the raw milk are used as baits for standby.
S2 feeding method
After the young grahamus parvifilis absorbs the yolk sac, the young grahamus parvifilis swims, the opening is opened for feeding, and at the moment, bait is fed, wherein the bait is prepared raw milk and cooked yolk. The milk and the yolk are separately fed alternately for four times: feeding milk for the first time and yolk for the second time, and feeding the milk and the yolk alternately in sequence for eight times a day.
When the feed is fed, the egg yolk can not be lumpy, is optimal in powder shape, and is uniformly scattered in the pond, so that the fry can be eaten; raw milk is uniformly poured into the culture pond, and the flow rate cannot be too high, so that the milk is uniformly injected into the pond.
S3, material feeding amount
The usage amount of raw milk is 1.5% of the weight of the fry, and the usage amount of yolk is 1.5% of the weight of the fry.
S4, feeding period
The feeding cycle of milk and yolk is as follows: the fry are fed from the first day to the fifteenth day through the opening. After the fry is opened for half a month, the special powder for the schizothorax grahami needs to be replaced.
Preferably, the fishpond is disinfected and cleaned in the early stage of breeding: before hatching eggs of schizothorax grahami, soaking the breeding pond in quicklime water for 3-5 days, sterilizing the pond, cleaning the breeding pond after sterilization, keeping a running water soaking state, thoroughly diluting the quicklime in the breeding pond, and culturing the fries of the schizothorax grahami after 3 days, wherein the breeding pond after breeding must be cleaned and sterilized for subsequent use.
1) After the fry breeding pond integrating incubation and fry breeding is disinfected in the early stage of fry breeding, cleaning is not needed in the stage from roe membrane breaking to horizontal swimming, and normal fishpond cleaning work is needed in the incubation period of roes and the later stage of horizontal swimming of the roes every day.
2) The conventional fry pond and adult fish pond can be regularly cleaned, disinfected and dried in the sun, the daily cleaning removes bottom excrement, residual bait, scale and other substances by cleaning the fish pond, and after the fish pond is changed into a new pond after the fish pond is changed into the new pond or the fish fry is seriously ill and needs to be changed, the bred fish pond needs to be disinfected, cleaned and dried in the sun.
Preferably, the water source adopts natural spring water, underground water, stream water and reservoir bottom water, the water quality is required to be fresh and pollution-free, the transparency is more than 100cm, the dissolved oxygen is not less than 5mg/L, the pH value is 6.5-7.5, the water temperature is 13-18 ℃, and the whole process of running water culture is carried out.
Preferably, the main minerals, vitamins, phospholipids and the like in the yolk egg are in the yolk, the main components of the yolk are 17.5 percent of protein, 32.5 percent of fat, about 48 percent of water, 2 percent of minerals, various vitamins and the like, and the yolk is smashed into powder after being cooked, and has moderate thickness.
Preferably, the disease control: the fish pond is disinfected in the early stage of breeding fish, daily sanitary management is enhanced in the early stage of fish egg hatching and membrane rupture and in the two stages after advection, the hatching pond needs to be cleaned for 1-3 times every day, dead eggs, dead seedlings and abnormal seedlings are cleaned every day, and the fed fish seedlings can be regularly fed with traditional Chinese medicines such as vitamin C, vitamin E (or multi-vitamin), tricyclo powder and the like, so that the immunity of the fish is improved.
Preferably, along with fry constantly grows, the density of breeding in the fish pond increases gradually, and when density is certain, divide the pond to feed, rationally reduce the density of breeding in the pond.
(III) advantageous effects
Compared with the prior art, the invention provides a method for breeding schizothorax grahami fries in the opening stage, which has the following beneficial effects:
1. the method for breeding the schizothorax grahami fry in the shedding stage comprises the following four steps of material selection, feeding method, feeding amount and feeding period, and feeding according to a reasonable proportion, breaks through domestic fairy shrimp and feed feeding habits, is a new fry breeding discovery in the artificial fry breeding stage of the schizothorax grahami, and has no reports on domestic and foreign published documents which are the same as the egg yolk and milk breeding method for the schizothorax grahami in the shedding stage.
2. The new starter raw material for breeding the wild schizothorax grahami fry is found, and the diversification of the starter fry breeding technology is promoted.
3. The breeding technology is continuously improved and innovated, a set of breeding method suitable for the Schizothorax grahami fry is practiced, and the method has positive effects and important significance for protecting local rare fish resources, creating local fish brands and promoting the development of local agricultural economy.
4. According to the method for breeding the schizothorax grahami fry in the opening stage, the breeding environment and the nutrition requirements of the fry in the growing period are reasonably controlled, the success rate of breeding the artificial schizothorax grahami fry is effectively improved, and a technical basis is provided for realizing large-scale breeding of the schizothorax grahami.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a method for culturing Schizothorax grahami fries in the opening stage comprises the following steps:
s1, selecting materials
Selecting fresh native eggs, steaming, taking out yolk, and breaking with a breaker.
Fresh raw milk is selected, filtered and decontaminated, and impurities in the raw milk are removed.
The yolk and the raw milk are used as baits for standby.
S2 feeding method
After the young grahamus parvifilis absorbs the yolk sac, the young grahamus parvifilis swims, the opening is opened for feeding, and at the moment, bait is fed, wherein the bait is prepared raw milk and cooked yolk. The milk and the yolk are separately fed alternately for four times: feeding milk for the first time and yolk for the second time, and feeding the milk and the yolk alternately in sequence for eight times a day.
When the feed is fed, the egg yolk can not be lumpy, is optimal in powder shape, and is uniformly scattered in the pond, so that the fry can be eaten; raw milk is uniformly poured into the culture pond, and the flow rate cannot be too high, so that the milk is uniformly injected into the pond.
S3, material feeding amount
The usage amount of raw milk is 1.5% of the weight of the fry, and the usage amount of yolk is 1.5% of the weight of the fry.
S4, feeding period
The feeding cycle of milk and yolk is as follows: the fry are fed from the first day to the fifteenth day through the opening. After the fry is opened for half a month, the special powder for the schizothorax grahami needs to be replaced.
Example two:
sterilizing and cleaning a fishpond in the early stage of seedling culture: before hatching eggs of schizothorax grahami, soaking the breeding pond in quicklime water for 3-5 days, sterilizing the pond, cleaning the breeding pond after sterilization, keeping a running water soaking state, thoroughly diluting the quicklime in the breeding pond, and culturing the fries of the schizothorax grahami after 3 days, wherein the breeding pond after breeding must be cleaned and sterilized for subsequent use.
Furthermore, after the fry culturing pool integrating incubation and fry culturing is disinfected in the early stage of fry culturing, cleaning treatment is not needed in the stage from roe membrane breaking to horizontal swimming, and normal fishpond cleaning work is needed in the incubation period of the roes and the later stage of the horizontal swimming of the roes every day.
Furthermore, the conventional fry pond and adult fish pond can be regularly cleaned, disinfected and dried in the sun, the daily cleaning removes bottom excrement, residual bait, scale and other substances by cleaning the fish pond, and after the fish is changed into a new pond or the fish fry is seriously ill and needs to be changed, the bred fish pond needs to be disinfected, cleaned and dried in the sun.
Specifically, the water source adopts natural spring water, underground water, stream water and reservoir bottom water, and the water quality is required to be fresh and pollution-free, the transparency is more than 100cm, the dissolved oxygen is not less than 5mg/L, the pH value is 6.5-7.5, the water temperature is 13-18 ℃, and the whole process of running water culture is carried out.
The main components of the yolk, such as mineral substances, vitamins, phospholipid and the like, in the yolk are 17.5 percent of protein, 32.5 percent of fat, about 48 percent of water, 2 percent of mineral substances, various vitamins and the like, and the yolk is smashed into powder after being cooked, and has moderate thickness.
Disease prevention and treatment: the fish pond is disinfected in the early stage of breeding fish, daily sanitary management is enhanced in the early stage of fish egg hatching and membrane rupture and in the two stages after advection, the hatching pond needs to be cleaned for 1-3 times every day, dead eggs, dead seedlings and abnormal seedlings are cleaned every day, and the fed fish seedlings can be regularly fed with traditional Chinese medicines such as vitamin C, vitamin E (or multi-vitamin), tricyclo powder and the like, so that the immunity of the fish is improved.
Along with fry constantly grows, the density of breeding in the fish pond increases gradually, and when the density is certain, divide the pond to feed, rationally reduce the density of breeding in the pond.
The invention has the beneficial effects that:
1. the method for breeding the fry of the schizothorax grahami at the initial stage comprises the following four steps of material selection, feeding, material feeding amount and feeding period, and feeding according to a reasonable proportion, breaks through domestic fairy shrimp and feed feeding habits, is a new seedling discovery in the artificial breeding stage of the schizothorax grahami, does not see the reports of domestic and foreign published documents on yolk and milk breeding methods in the initial stage of the schizothorax grahami, discovers a new initial raw material for breeding the fry of the wild schizothorax grahami, promotes the diversification of the breeding technology of the fry at the initial stage, improves and innovates the breeding technology continuously, and practices a set of breeding method suitable for the fry of the schizothorax grahami.
2. According to the method for culturing the schizothorax grahami fry in the opening stage, the environment suitable for the life of the schizothorax grahami is created by controlling the culturing environment, the death rate of the fry is reduced, the fry can grow quickly, and the method is suitable for growth compared with the culturing environments such as the conventional net cage.
The specific implementation mode is as follows:
firstly, a clean pollution-free hatching and seedling raising integrated seedling raising pond is prepared, and the specific process is as follows: before the eggs of schizothorax grahami are hatched, the breeding pond is soaked in quicklime water for 3-5 days, and the fish pond is disinfected. And (3) cleaning the breeding pond after disinfection, keeping the breeding pond in a running water soaking state, thoroughly diluting the quicklime in the breeding pond, and cleaning again after 3 days to obtain the schizothorax grahami fry.
Paying attention to the water quality of the Schizothorax grahami fry culture: the water source adopts natural spring water, underground water, stream water and reservoir bottom water, and has fresh water quality, no pollution, transparency greater than 100cm, dissolved oxygen not lower than 5mg/L, pH value 6.5-7.5 and water temperature 9-17 deg.c.
Observing the hatching progress of fish eggs in a fry pond, timely feeding baits when reaching a stage of adventure (namely a stage of opening), feeding the baits for raw milk and crushed cooked yolk for eight times a day, wherein the usage amount of the raw milk is 1.5 percent of the weight of the fish fry, the usage amount of the yolk is 1.5 percent of the weight of the fish fry, feeding the raw milk and the yolk separately and alternately, feeding the raw milk and the yolk for four times, feeding the raw milk and the yolk for the first time, feeding the yolk for the second time, and feeding the raw milk and the yolk alternately in sequence, wherein the feeding can be changed into turning powder after 15 days.
Along with fry constantly grows, the density of breeding in the fish pond increases gradually, and when the density is certain, divide the pond to feed, rationally reduce the density of breeding in the pond.
In the period, the sanitation management is strengthened so as to avoid cross infection caused by putrefaction of fish eggs, fish fries and feed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A method for culturing Schizothorax grahami fries in an opening stage is characterized by comprising the following steps:
s1, selecting materials
Selecting fresh native eggs, steaming, taking out yolk, and breaking with a breaker.
Fresh raw milk is selected, filtered and decontaminated, and impurities in the raw milk are removed.
The yolk and the raw milk are used as baits for standby.
S2 feeding method
After the young grahamus parvifilis absorbs the yolk sac, the young grahamus parvifilis swims, the opening is opened for feeding, and at the moment, bait is fed, wherein the bait is prepared raw milk and cooked yolk. The milk and the yolk are separately fed alternately for four times: feeding milk for the first time and yolk for the second time, and feeding the milk and the yolk alternately in sequence for eight times a day.
When the feed is fed, the egg yolk can not be lumpy, is optimal in powder shape, and is uniformly scattered in the pond, so that the fry can be eaten; raw milk is uniformly poured into the culture pond, and the flow rate cannot be too high, so that the milk is uniformly injected into the pond.
S3, material feeding amount
The usage amount of raw milk is 1.5% of the weight of the fry, and the usage amount of yolk is 1.5% of the weight of the fry.
S4, feeding period
The feeding cycle of milk and yolk is as follows: the fry are fed from the first day to the fifteenth day through the opening. After the fry is opened for half a month, the special powder for the schizothorax grahami needs to be replaced.
2. The method for culturing Schizothorax grahami fry in the opening stage according to claim 1, wherein the fish pond in the early stage of fry culture is sterilized and cleaned: before hatching eggs of schizothorax grahami, soaking the breeding pond in quicklime water for 3-5 days, sterilizing the pond, cleaning the breeding pond after sterilization, keeping a running water soaking state, thoroughly diluting the quicklime in the breeding pond, and culturing the fries of the schizothorax grahami after 3 days, wherein the breeding pond after breeding must be cleaned and sterilized for subsequent use.
1) After the fry breeding pond integrating incubation and fry breeding is disinfected in the early stage of fry breeding, cleaning is not needed in the stage from roe membrane breaking to horizontal swimming, and normal fishpond cleaning work is needed in the incubation period of roes and the later stage of horizontal swimming of the roes every day.
2) The conventional fry pond and adult fish pond can be regularly cleaned, disinfected and dried in the sun, the daily cleaning removes bottom excrement, residual bait, scale and other substances by cleaning the fish pond, and after the fish pond is changed into a new pond after the fish pond is changed into the new pond or the fish fry is seriously ill and needs to be changed, the bred fish pond needs to be disinfected, cleaned and dried in the sun.
3. The method for culturing Schizothorax grahami fry in the initial stage according to claim 1, wherein the water source is natural spring water, underground water, stream water or reservoir bottom water, and the method is characterized by comprising the steps of fresh water quality, no pollution, transparency of more than 100cm, dissolved oxygen of not less than 5mg/L, pH value of 6.5-7.5, water temperature of 13-18 ℃ and whole-process running water culture.
4. The method for culturing Schizothorax grahami fry in the initial stage of claim 1, wherein the egg yolk contains minerals, vitamins, phospholipids and the like mainly in the egg yolk, the egg yolk contains protein 17.5%, fat 32.5%, water 48%, minerals 2% and vitamins about 48%, and the egg yolk is cooked and mashed to form powder with moderate thickness.
5. The method for culturing schizothorax grahami fry in the initial stage according to claim 1, wherein the disease prevention and treatment comprises: the fish pond is disinfected in the early stage of breeding fish, daily sanitary management is enhanced in the early stage of fish egg hatching and membrane rupture and in the two stages after advection, the hatching pond needs to be cleaned for 1-3 times every day, dead eggs, dead seedlings and abnormal seedlings are cleaned every day, and the fed fish seedlings can be regularly fed with traditional Chinese medicines such as vitamin C, vitamin E (or multi-vitamin), tricyclo powder and the like, so that the immunity of the fish is improved.
6. The method for culturing Schizothorax grahami fry in the opening stage as claimed in claim 1, wherein the fish fry is continuously grown, the culture density of the fish pond is gradually increased, and when the density is constant, the fish is fed in different ponds, so that the culture density in the fish pond is reasonably reduced.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112154946A (en) * | 2020-11-05 | 2021-01-01 | 华中农业大学 | Method for cultivating indoor controllable inactivated bait fish with initial fish fries |
Citations (3)
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