CN109006588B - Method for helping pelteobagrus fulvidraco fry to quickly pass through sensitive period and effectively improve survival rate - Google Patents
Method for helping pelteobagrus fulvidraco fry to quickly pass through sensitive period and effectively improve survival rate Download PDFInfo
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- 241000116713 Ferula gummosa Species 0.000 claims abstract description 5
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- 235000013601 eggs Nutrition 0.000 description 1
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Classifications
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- 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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- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
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- Farming Of Fish And Shellfish (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a method for helping pelteobagrus fulvidraco fry to quickly pass through a sensitive period and effectively improve survival rate, and belongs to the field of aquaculture. The cultivation management method comprises the following steps: preparing a pond and putting in small Chinese flowering grass; secondly, putting the fry into a pond and domesticating the fry; and thirdly, the ecological stability of the pond is maintained. The invention has the following advantages and positive effects: the method has the advantages that the water body surface layer galbanum is utilized to attract sufficient baits in the area to float on the water body surface layer for feeding, so that the fry can pass through the sensitive period quickly, and the fry survival rate is effectively improved; disease risk caused by feeding organisms at the bottom of the feeding pond after feeding habit conversion of the fry is effectively avoided; thirdly, the immunity of the fry is improved, and the resistance of the fry to diseases is enhanced; fourthly, the operation method is simple and clear, the materials are easy to obtain, and the method has the prospect of demonstration and easy popularization; the method is environment-friendly technology development, has good safety record and no potential environmental risk.
Description
Technical Field
The invention relates to an aquaculture technology, in particular to a method for helping pelteobagrus fulvidraco fry to quickly pass through a sensitive period and effectively improve survival rate.
Background
The Pelteobagrus fulvidraco belongs to the order of catfishes (Silurformes), the family of Pseudobagrus, the genus of Pelteobagrus (Pelteobagrus) Is peculiar to east Asia and is common benthic carnivorous fish in rivers and lakes in China. The fresh water culture medium has tender meat, delicious taste and no muscle prick, is favored by consumers, and has been developed into a famous fresh water culture variety with higher economic value in recent years. However, in the current artificial breeding process of the pelteobagrus fulvidraco, the mortality rate of the fry is extremely high, and the fry breeding factory overcomes the problem of high mortality rate by increasing the number of the parents and increasing the number of eggs laid, so that the labor intensity of breeding workers is increased, hatching equipment is wasted, the breeding cost is increased, and the breeding cost becomes a bottleneck restricting the industrialized development of pelteobagrus fulvidraco breeding at the present stage.
The early development stage of the fry is the most sensitive period to the external environment in the whole life process of the fish, and the sensitive period has universality. Wherein, the fry feeding habit transition and the fry food supply in the habitat are the key for determining whether the fry can survive. The pelteobagrus fulvidraco has two feeding transformations in the sensitive period, wherein plankton is transformed into benthonic animals in 9-13 days of emergence for the first time; and in the second time, the seedlings emerge for 18-22 days, and the benthonic animals are converted into omnivores mainly comprising animal baits. At this stage, the habitat and feeding habits of the pelteobagrus fulvidraco fry are changed violently, so that the death rate of the pelteobagrus fulvidraco fry is extremely high, the biological source of the bait at the bottom of the pond is unreliable and unstable, and the disease risk of the fry in the sensitive period is aggravated.
Herba Potentillae Funariae belongs to the order Chrysanthemum (Asterales), Compositae (Asteraceae), and genus (herba et radix Valerianae)Conyza) In the original north america, the provinces in the south and north of China are distributed at present, most of the plants grow on dry and sunny land, large grass clusters are formed on the roadside, the field and the pond, the stems before blooming are 70-130 cm long, and the method has the advantages of rapid growth, easy acquisition and convenient bundling. In addition, the agriophyllum squarrosum plant extract contains beta-cedrene with anti-inflammatory activity, and antibacterial active ingredients of vanillic acid and syringic acid, and is a natural plant antibacterial agent.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provide a method for helping pelteobagrus fulvidraco fry to quickly pass through a sensitive period and effectively improve the survival rate.
The purpose of the invention is realized as follows:
starting with the cultivation management of the pelteobagrus fulvidraco fry in the sensitive period, sufficient bait in the area is attracted to float on the surface layer of the water body by using the grass on the surface layer of the water body for feeding, at the moment, the special powder for domesticating the pelteobagrus fulvidraco can reduce the foraging consumption of the fry, avoid the downward feeding change of the fry, help the fry to quickly pass through the sensitive period, and effectively improve the survival rate of the fry; meanwhile, the disease risk caused by feeding organisms at the bottom of the feeding pond when the feeding habit of the fry is changed is effectively avoided; in addition, the agrimony is used as an effective component released by a natural plant antibacterial agent, so that the immunity of the fry can be improved, and the resistance of the fry to diseases can be enhanced.
Specifically, the method comprises the following steps:
preparing a pond and putting in small Chinese flowering plants:
A. selecting a pond with sufficient water source, good water quality, no pollution and convenient water inlet and drainage, preparing the pond in advance and fertilizing the water quality;
B. 1-2 days before the seedlings are thrown into the pond, cutting down the galbanum chinense beside the pond, and bundling the galbanum chinense into 1-3 kg/bundle of grass bundles;
secondly, fry are put into a pond and domesticated:
a. after the pelteobagrus fulvidraco fry is taken out of the film and is flatly swimming, the pelteobagrus fulvidraco fry is timely taken out of the pond and is supplemented with grass bundles as required;
b. stabilizing the fries for 3-5 days after the fries are put into the pond, gathering the fries in a grass stalk area, domesticating and feeding the fries, namely the special powder of the pelteobagrus fulvidraco, and gradually transitionally domesticating and feeding the special No. 0 puffed pellet feed of the pelteobagrus fulvidraco;
the No. 0 puffed pellet feed special for the pelteobagrus fulvidraco is a known feed and can be obtained from commercial sources;
thirdly, maintaining the ecological stability of the pond:
i, after the feeding habit is successfully domesticated, timely cleaning the Chinese herbal bundles in the pond to avoid stack retting of the herbal bundles and spoiling water quality;
and ii, performing disinfection, bait casting and water replenishing according to actual conditions.
The working mechanism is as follows:
chopping and falling the well-grown pennisetum hydridum, bundling the pennisetum hydridum into bundles, uniformly putting the bundles on the surface of a pond, enriching algae and microorganisms under the bundles, providing sufficient food for zooplankton and promoting a large amount of zooplankton to gather in the bundles; because the yellow catfish has the habit of being fond of inhabiting in a water grass area, and sufficient bait attraction is added, the yellow catfish fry floats in a grass stalk area on the surface layer of a water body within a period of time, at the moment, the special powder for domesticating the yellow catfish can reduce the foraging consumption of the fry, so that the fry can eat artificial reliable feed as soon as possible, the downward feeding property change of the fry is avoided, the fry is helped to quickly pass through a sensitive period, and the survival rate of the fry is effectively improved; meanwhile, the disease risk caused by unreliable and unstable sources of bait organisms at the bottom of the pond is effectively avoided; in addition, the agrimony is used as an effective component released by a natural plant antibacterial agent, so that the immunity of the fry can be improved, and the resistance of the fry to diseases can be enhanced.
The invention has the following advantages and positive effects:
the method comprises the following steps of attracting sufficient baits in a region to float on the surface layer of the water body for feeding by utilizing the grass of the grass on the surface layer of the water body, reducing foraging consumption of the fries by domesticating special powder for the yellow catfish, avoiding downward feeding change of the fries, helping the fries to quickly pass through a sensitive period, and effectively improving survival rate of the fries;
disease risk caused by feeding organisms at the bottom of the feeding pond after feeding habit conversion of the fry is effectively avoided;
thirdly, the agrimony is used as an effective component released by a natural plant antibacterial agent, so that the immunity of the fry can be improved, and the resistance of the fry to diseases can be enhanced;
fourthly, the operation method is simple and clear, the materials are easy to obtain, and the method has the prospect of demonstration and easy popularization;
the method is environment-friendly technology development, has good safety record and no potential environmental risk.
Detailed Description
The following is a detailed description of the embodiments:
first, an embodiment
1. Example 1
In 2016, 5 and 15 days, in the area of Huai 'an Huai Yin in Jiangsu, Huai' an, the river is in the high rural area, choose 3.8 mu of yellow catfish fry rearing ponds, quicklime dry method is clear of the pond; after 7 days, applying fermented and disinfected manure to ferment the manure, and then injecting 80-mesh bolting silk filtered water to ensure that the depth of the pond water reaches 45 cm; after one week, cutting down the pennisetum hydridum at the edge of the pond, bundling the pennisetum hydridum into straw bundles of 2 kg/bundle, and uniformly putting the straw bundles on the surface of the pond, wherein the putting amount is 15 bundles/mu; 6, 6 and 2 days in 2016, and 100 thousands of fries are placed in the flat swimming fries; after the fries are put into the pond, 5 fries are supplemented as required; after 3 days of stabilization, the fish fries gather in a grass stalk area of the grass, the special powder for domesticating the fish fries and the pelteobagrus fulvidraco begins to be fed, and the special No. 0 puffed feed for domesticating the pelteobagrus fulvidraco is gradually transited; after food domestication is successful, the Chinese herbal bundles in the pond are cleaned in time; during the fry rearing period, new water is supplemented in time when the water level is reduced, and the water feeding principle is small and repeated; 6, 27 days in 2016, the fry body length reaches more than 3cm, and the fry is fed by different ponds at the moment; the net pulling exercise statistics shows that the pelteobagrus fulvidraco in size of 86.12 ten thousand tails has a survival rate of 86.12%.
2. Example 2
In 2016, 5 and 23 months, in the area of Huai 'an Huai Yin in Jiangsu, Huai' an, the river is in the high village, 5.2 mu of yellow catfish fry breeding ponds are selected, and quicklime is used for dry pond cleaning; after 7 days, applying fermented and disinfected manure to ferment the manure, and then injecting 80-mesh bolting silk filtered water to ensure that the depth of the pond water reaches 50 cm; after one week, cutting down the pennisetum hydridum at the edge of the pond, bundling the pennisetum hydridum into straw bundles of 2.5 kg/bundle, and uniformly putting the straw bundles on the surface of the pond with the putting amount of 13 straw bundles/mu; 6, 9 days in 2016, and 100 thousands of fries are placed after the flat swimming; after the fry is put into the pond, about 10 fish fries are supplemented as required; after the fish fries are stabilized for 5 days, the fish fries gather in a grass stalk area, the special powder for the yellow catfish for domesticating the fish fries is started, and then the special No. 0 puffed feed for the yellow catfish is gradually and transitionally domesticated; after food domestication is successful, the Chinese herbal bundles in the pond are cleaned in time; during the fry rearing period, new water is supplemented in time when the water level is reduced, and the water feeding principle is small and repeated; 7, 8 days in 2016, and the body length of the fry reaches more than 3cm, and the fry is fed by different ponds at the moment; the net pulling exercise statistics shows that the pelteobagrus fulvidraco in size of 88.57 ten thousand tails has a survival rate of 88.57%.
3. Example 3
In 2017, after 18 days in 5 months, selecting a 4.5 mu pelteobagrus fulvidraco fry breeding pond in a Jiangsu, Huai-an, Huai-Yin area and cleaning the pond by a quick lime dry method; after 7 days of pond cleaning, using a fertilizer and water product of a certain manufacturer to ferment the pond, and then injecting 80-mesh bolting silk filtered water to ensure that the depth of the pond water reaches 50 cm; after one week, cutting down the pennisetum hydridum at the edge of the pond, bundling the pennisetum hydridum into straw bundles of 3 kg/bundle, and uniformly putting the straw bundles on the surface of the pond with the putting amount of 10 straw bundles/mu; 6, 6 and 5 days in 2017, putting 120 thousands of fries after the flat swimming; after the fries are put into the pond, about 8 fries are supplemented as required; after the fry is stabilized for 3 days, feeding the fry special powder for the yellow catfish, and gradually transitionally feeding the No. 0 puffed feed special for the yellow catfish; after food domestication is successful, the Chinese herbal bundles in the pond are cleaned in time; during the fry rearing period, new water is supplemented in time when the water level is reduced, and the water feeding principle is small and repeated; 7, 1 month and 2017, wherein the body length of the fry reaches more than 3cm, and the fry is fed in different ponds; the net pulling exercise statistics shows that the pelteobagrus fulvidraco in size of 106.85 ten thousand tails, and the survival rate reaches 89.04%.
Second, result analysis
The embodiment 1-3 culture conditions and the cultivation effect of the pelteobagrus fulvidraco fry are summarized as follows:
according to the invention, according to the life habit and the environmental requirement of the pelteobagrus fulvidraco fry stage, starting from the breeding management of the pelteobagrus fulvidraco fry in the sensitive period, sufficient bait in the region is attracted to float on the surface layer of the water body by using the galbana grass on the surface layer of the water body for feeding, at the moment, the special powder for domesticating the pelteobagrus fulvidraco can reduce the foraging consumption of the fry, avoid the downward feeding change of the fry, help the fry to quickly pass through the sensitive period, and effectively improve the survival rate of; meanwhile, the disease risk caused by feeding organisms at the bottom of the feeding pond when the feeding habit of the fry is changed is effectively avoided; in addition, the agrimony is used as an effective component released by a natural plant antibacterial agent, so that the immunity of the fry can be improved, and the resistance of the fry to diseases can be enhanced; the pelteobagrus fulvidraco fry bred by the breeding management method has the advantages that the survival rate of the fish slices is stable to more than 85%, and the large-scale production requirement is met.
Claims (1)
1. A method for helping pelteobagrus fulvidraco fry to quickly pass through a sensitive period and effectively improve survival rate is characterized by comprising the following steps:
preparation of pond and throwing in small Chinese herb
A. Selecting a pond with sufficient water source, good water quality, no pollution and convenient water inlet and drainage, preparing the pond in advance and fertilizing the water quality;
B. 1-2 days before the seedlings are thrown into the pond, cutting down the galbanum chinense beside the pond, and bundling the galbanum chinense into 1-3 kg/bundle of grass bundles;
② the fry is put into the pond and domesticated
a. After the pelteobagrus fulvidraco fry is taken out of the film and is flatly swimming, the pelteobagrus fulvidraco fry is timely taken out of the pond and is supplemented with grass bundles as required;
b. stabilizing the fries for 3-5 days after the fries are put into the pond, gathering the fries in a grass stalk area, domesticating and feeding the fries, namely the special powder of the pelteobagrus fulvidraco, and gradually transitionally domesticating and feeding the special No. 0 puffed pellet feed of the pelteobagrus fulvidraco;
③ maintaining the ecological stability of the pond
I, after the feeding habit is successfully domesticated, timely cleaning the Chinese herbal bundles in the pond to avoid stack retting of the herbal bundles and spoiling water quality;
and ii, performing disinfection, bait casting and water replenishing according to actual conditions.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100864161B1 (en) * | 2007-04-23 | 2008-10-16 | 이향만 | Composition for treating hemorrhoids and manufacturing method for the same |
| CN103688881A (en) * | 2013-10-14 | 2014-04-02 | 叶金明 | Cultivation method for pelteobagrus fulvidraco summerlings fish fries |
| CN105660482A (en) * | 2016-02-26 | 2016-06-15 | 安徽天邦饲料科技有限公司 | Breeding method for increasing survival rate of yellow catfish fry |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100864161B1 (en) * | 2007-04-23 | 2008-10-16 | 이향만 | Composition for treating hemorrhoids and manufacturing method for the same |
| CN103688881A (en) * | 2013-10-14 | 2014-04-02 | 叶金明 | Cultivation method for pelteobagrus fulvidraco summerlings fish fries |
| CN105660482A (en) * | 2016-02-26 | 2016-06-15 | 安徽天邦饲料科技有限公司 | Breeding method for increasing survival rate of yellow catfish fry |
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