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A kind of mandarin fish family selection breeding group isolation hatching method

A technology of mandarin fish and family line, which is applied in the field of mandarin fish family selection and group isolation incubation, can solve the problem of lack of sufficient data for family selection and achieve the effect of shortening incubation time and high survival rate

Inactive Publication Date: 2016-08-17
武汉市佳恒水产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the most difficult problems in family breeding is that there are a large number of different family groups available for selection, and it is required that the families be independent from each other and reproduce synchronously to distinguish the pedigree (the relationship between parents and offspring), often due to traditional facilities. and breeding methods cannot meet this process, making family selection lack sufficient data

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In an embodiment of the present invention, a method for isolation and hatching of mandarin fish family selection and breeding groups, the specific steps include:

[0016] (1) Parent fish pairing: Complete the male and female pairing of mandarin fish in the net cage according to the planned parent mating plan, put 5 kg of brood fish per square meter of net cage, and artificially induce labor when the water temperature is above 25°;

[0017] (2) Preparation of hatching pools: install hatching containers in the hatching pools, number them, and line them up in a line. Arrange the number of queues according to the size of the hatching pools. After supporting the pole, open the water inlet pipe on the hatching tank, start the water pump, and inject clean hatching water to a depth of 1m;

[0018] (3) Artificial egg insemination: according to the predetermined breeding target, use full siblings or half siblings to collect eggs for insemination, squeeze out the eggs from the abd...

Embodiment 2

[0021] In an embodiment of the present invention, a method for isolation and hatching of mandarin fish family selection and breeding groups, the specific steps include:

[0022] (1) Broodstock mating: Complete the male and female pairing of mandarin fish in the net cage according to the planned parent mating plan, put 5.5 kg of broodstock per square meter of cage, and artificially induce labor when the water temperature is above 25°;

[0023] (2) Preparation of hatching pools: install hatching containers in the hatching pools, number them, line them up in a line, arrange the number of queues according to the size of the hatching pools, and arrange the queues at a distance of 0.5m. After supporting the pole, open the water inlet pipe on the hatching tank, start the water pump, and inject clean hatching water to a depth of 1m;

[0024] (3) Artificial egg insemination: according to the predetermined breeding target, use full siblings or half siblings to collect eggs for inseminat...

Embodiment 3

[0027] In an embodiment of the present invention, a method for isolation and hatching of mandarin fish family selection and breeding groups, the specific steps include:

[0028] (1) Broodstock mating: Complete the male and female pairing of mandarin fish in the net cage according to the planned parent mating plan, put 6 kg of broodstock per square meter of cage, and artificially induce labor when the water temperature is above 25°;

[0029] (2) Preparation of hatching pools: install hatching containers in the hatching pools, number them, and line them up in a straight line. Arrange the number of queues according to the size of the hatching pools. The distance between the lines is 0.8m. After supporting the pole, open the water inlet pipe on the hatching tank, start the water pump, and inject clean hatching water to a depth of 1m;

[0030] (3) Artificial egg insemination: according to the predetermined breeding target, use full siblings or half siblings to collect eggs for inse...

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Abstract

The invention discloses a family-selection group-isolating hatching method for mandarin fish. The method specifically includes the steps of parent fish mating, artificial egg-collecting and fertilization and transferring fertilized eggs into a hatching pond for hatching after cleaning. Fish eggs are placed in independent hatching containers of the hatching pond; when the fertilized eggs are just placed into the hatching containers, water velocity is controlled to be 7L / min; after 24 hours, water velocity is decreased by 0.2L / min every two hours; after more than 85% of the fertilized eggs are hatched to be out of membranes, water velocity is increased by 0.3L / min every one hour; after being hatched, fish fries are placed in a fry collection box. The family-selection group-isolating hatching method for the mandarin fish has the advantages that requirements on fish egg hatching environments are met, the fertilized eggs are developed rapidly, natural hatching time is shortened, and survival rate is high; the method achieves family-selection isolating, large-group and synchronous hatching of the mandarin fish, so that family-selection hatching of the mandarin fish is not restricted by traditional hatching equipment conditions.

Description

technical field [0001] The invention relates to the technical field of aquatic seedling breeding, in particular to a method for isolation and hatching of mandarin fish family selection and breeding groups. Background technique [0002] Mandarin mandarin fish is a traditional freshwater fish in my country. Its meat is tender and nutritious, and it is the top grade of fish. It has high edible, economic, ecological and scientific value. Over the past ten years, due to various degrees of pollution of inland natural waters, overfishing in rivers and lakes, lack of understanding of biodiversity, inbreeding, etc., mandarin fish resources have been seriously threatened, and mandarin fish fry are disease-resistant. The force of mandarin fish decreased significantly, the growth rate of mandarin fish was slow, and the survival rate of cultured fish was low. Therefore, it is of great significance to promote the development of mandarin fish industrialization and improve the breeding eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王青云高银爱杨凯夏儒龙曾可为朱思华郑翠华罗峰
Owner 武汉市佳恒水产有限公司
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