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Indoor cement pond artificial breeding method for generic hybrid progenies of chromileptes altivelis and epinephelus lanceolatus

A saddle grouper and cement pond technology, applied in chemical instruments and methods, water/sludge/sewage treatment, fish farming, etc., can solve the problem of limiting large-scale artificial farming, scarcity of hybrid larvae, and poor growth quality. problems such as large differences, to achieve the effects of efficient cultivation, enhanced feeding ability, and improved vitality

Active Publication Date: 2020-06-02
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few researches on the artificial hybrid breeding technology of humpback perch as the female parent and saddle grouper as the male parent. Although the intergeneric hybrid offspring obtained by the hybridization can have good hybrid growth of the two parents However, the artificial breeding technology for its hybrid progeny is not yet mature. In the early development stage, the hybrid larvae are prone to low survival rate, high deformity rate and strong stress response due to environmental factors and poor bait feeding. , the large difference in growth quality, resulting in the scarcity of hybrid larvae seedlings, and the lack of seedlings limits the development of large-scale artificial breeding of hybrid grouper between humpback perch and saddle grouper

Method used

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  • Indoor cement pond artificial breeding method for generic hybrid progenies of chromileptes altivelis and epinephelus lanceolatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1-a kind of indoor cement pond artificial nursery method of humpback perch and saddle grouper genus hybrid, comprises the steps:

[0031] (1) Pretreatment of cement pool:

[0032] Select an area of ​​68m 2 A cement pool with a water depth of 1.5m was injected into the sand to filter seawater; two weeks before the newly hatched hybrid larvae were put in, 0.3mg / L concentration of EM probiotic preparation was added to the pool every day, and the daily input mass ratio was 5:2: 2 Spirulina, Chlorella and Skeletonia, keep the water transparency at 55-65cm;

[0033] (2) Putting hybrid larvae:

[0034] One week before the hybrid larvae enter the pond, the salinity of the water body is adjusted to 27, the pH value is 7.6, and the dissolved oxygen in the water is ≥6.5mg / L; the density of the newly hatched hybrid larvae is 10,000 fish / m 3 Put it into the pool, the temperature of the water entering the pool is 26°C, and the water flow is controlled to be ≤0.2m / s;

...

Embodiment 2

[0046] Embodiment 2-a kind of indoor cement pond artificial breeding method of humpback perch and saddle grouper genus hybrid, comprises the steps:

[0047] (1) Pretreatment of cement pool:

[0048] Select an area of ​​68m 2 Inject the sand with a water depth of 2.0m into the cement pond to filter the seawater; add 0.6mg / L concentration of EM probiotic preparation to the pond every day two weeks before putting in the newly hatched hybrid larvae, and the daily input mass ratio is 5:3: 3. Spirulina, Chlorella and Skeletonia, keep water transparency at 55-65cm;

[0049] (2) Putting hybrid larvae:

[0050] One week before the hybrid larvae enter the pond, the salinity of the water body is adjusted to 32, the pH value is 8.0, and the dissolved oxygen in the water is ≥ 6.5 mg / L; the density of the newly hatched hybrid larvae is 12,000 fish / m 3 Put it into the pool, the temperature of the water entering the pool is 28°C, and the water flow is controlled to be ≤0.2m / s;

[0051] (3...

Embodiment 3

[0060] Embodiment 3-a kind of indoor cement pond artificial nursery method of humpback perch and saddle grouper genus hybrid, comprises the steps:

[0061] (1) Pretreatment of cement pool:

[0062] Select an area of ​​70m 2 A cement pool with a water depth of 1.8m was injected into the sand to filter seawater; two weeks before the newly hatched hybrid larvae were put in, 0.5mg / L concentration of EM probiotic preparation was added to the pool every day, and the daily input mass ratio was 5:2: 3. Spirulina, Chlorella and Skeletonia, keep water transparency at 55-65cm;

[0063] (2) Putting hybrid larvae:

[0064] One week before the hybrid larvae enter the pond, the salinity of the water body is adjusted to 28, the pH value is 7.8, and the dissolved oxygen in the water is ≥6.5mg / L; the density of the newly hatched hybrid larvae is 11,000 fish / m 3 Put it into the pool, the temperature of the water entering the pool is 27°C, and the water flow is controlled to be ≤0.2m / s;

[00...

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Abstract

The invention provides an indoor cement pond artificial breeding method for generic hybrid progenies of chromileptes altivelis and epinephelus lanceolatus. The method comprises the following steps: (1) performing pretreatment on a cement pond; (2) casting hybrid larva fishes; (3) performing high-temperature low-salt domestication, namely, at the age of 4-6 days of the hybrid larva fishes, performing low-salt domestication for 2-3 days of a first stage, and at the age of 18-20 days of the hybrid larva fishes, performing low-salt domestication for 4-5 days of a second stage; (4) performing feeding management, namely after the age of 10 days of the hybrid larva fishes, feeding a transition feed every day till the age of 13 days of the hybrid larva fishes, and after the age of 20 days of the hybrid larva fishes, feeding a transmission feed every day till the age of 25 days of the hybrid larva fishes; and (5) performing water quality and lighting regulation and control. By adopting the indoor cement pond artificial breeding method provided by the invention, the vitality of the hybrid larva fishes can be effectively improved, the stress reactions of larvae can be reduced, and the food intake capability can be improved; and the larva fishes can be promoted to be adaptive to change of feeding, the malformation rate can be reduced, the growth quality of the hybrid larva fishes can be improved, and the survival rate of the hybrid larva fishes can be increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for artificially raising seedlings in an indoor cement pond for the intergenus hybrids of humpback perch and saddle grouper. Background technique [0002] Humpbacked perch (Chromileptes altivelis), which belongs to the order Perciformes, Speridae, and the genus Humpbacked perch, also known as mouse spot, is a reef fish in tropical seawater. It is distributed in the Strait and Hong Kong waters. Its juveniles are bright in color and can be used as ornamental fish. When they are adults, they taste delicious and are very high-grade food fish. Saddle band grouper (Epinephelus lanceolatus), commonly known as dragon grouper and gentian grouper, is the largest species among grouper fish, and is a kind of edible fish with high economic value, with delicious meat and rich nutrition. At present, there are few researches on the artificial hybrid breeding technology of humpback...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K10/18A23K20/174C02F3/34C02F3/32
CPCA01K61/10A23K50/80A23K10/30A23K10/18A23K20/174C02F3/34C02F3/325Y02A40/81Y02A40/818
Inventor 张国庆蔡春有吴光灿蔡有森蔡建顺黄春仁李伟蔡四川蔡金泉蔡惠明蔡智怀陈艺斌王景宝罗磊蔡艺新陈猛猛李伟峰刘赐福
Owner HAINAN CHENHAI AQUATIC CO LTD
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