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Semi-artificial breeding technology for Carassius aurutus gibelio

A heterogeneous gibel carp, semi-artificial technology, applied in the field of large-scale artificial propagation of heterogeneous gibel carp seedlings in ponds, can solve the problems of low fertilization rate, low efficiency, and easy injury of parents, so as to improve survival rate and increase reproduction Efficiency, saving manpower and material resources

Inactive Publication Date: 2010-12-22
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the present situation that the parents are easily injured, the fertilization rate is low and the efficiency is low in the current all-artificial breeding process of heterogeneous gibel carp, the present invention improves the artificial insemination in the whole artificial breeding link to natural insemination, that is, imitates the heterogeneous gibel carp in the pond The natural breeding environment allows the female and male parents to mate and reproduce in the pond, which effectively improves the reproductive efficiency, fertilization rate and hatching rate of the heterogeneous gibel carp, and saves manpower and material resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0013] (1) Preparation of breeding pools and hatching pools. Choose an area of ​​2000m 2 Breeding pool and area 2500m 2 hatching pond with a water depth of 1.8m. 200g / m of quicklime was used in the breeding pond and hatching pond 10 days before stocking 2 disinfect.

[0014] (2) Parental selection. In March every year, 2-year-old heterogeneous gibel carp is selected as the female parent, with an average size of 520g / tail, normal body shape, and silver-gray body color; Jian carp is selected as the male parent, with an average size of 650g / tail. The male to female ratio is 1.5:1. The selected parents are placed in the breeding pool for intensive cultivation.

[0015] (3) Make fish nests: one week before parental induced labor, select the poplar roots that are soft and bearded as fish nests. After the poplar roots are boiled, sterilized, and dried, they are tied to the top of the bamboo poles. The upper part of the fish nest just submerged in the pool water.

[0016] (4) ...

Embodiment approach 2

[0020] (1) Preparation of breeding pools and hatching pools. Choose an area of ​​2000m 2 Breeding pool and area 2500m 2 hatching pond with a water depth of 1.8m. Breeding ponds and hatching ponds use quicklime 180g / m 15 days before stocking 2 disinfect.

[0021] (2) Parental selection. In March every year, the 2-year-old heterogeneous gibel carp is selected as the female parent, with an average size of 530g / tail, normal body shape, and silver-gray body color; Xingguo red carp is selected as the male parent, with an average size of 700g / tail. The male to female ratio is 1.5:1. The selected parents are placed in the breeding pool for intensive cultivation.

[0022] (3) Make fish nests: one week before parental induced labor, select the poplar roots that are soft and bearded as fish nests. After the poplar roots are boiled, sterilized and dried, they are tied to the top of the bamboo poles. The upper part of the fish nest just submerged in the pool water.

[0023] (4) The...

Embodiment approach 3

[0027] (1) Preparation of breeding pools and hatching pools. Choose an area of ​​2000m 2 Breeding pool and area 2500m 2 hatching pond with a water depth of 1.8m. Breeding ponds and hatching ponds use quicklime 150g / m2 12 days before stocking 2 disinfect.

[0028] (2) Parental selection. In March every year, 2-year-old heterogeneous gibel carp is selected as the female parent, with an average size of 550g / tail, normal body shape, and silver-gray body color; Jian carp is selected as the male parent, with an average size of 800g / tail. The male to female ratio is 1.5:1. The selected parents are placed in the breeding pool for intensive cultivation.

[0029] (3) Make fish nests: one week before parental induced labor, select the poplar roots that are soft and bearded as fish nests. After the poplar roots are boiled, sterilized and dried, they are tied to the top of the bamboo poles. The upper part of the fish nest just submerged in the pool water.

[0030] (4) The parent in...

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Abstract

At present, the total artificial breeding technology is generally used for breeding Carassius aurutus gibelio in our country, which has the main following defects due to adopting an artificial insemination method: influenced parent survival rate, low fertility rate, hatchability and increased offspring seed cost. In the semi-artificial breeding technology for Carassius aurutus gibelio in the invention, the artificial insemination in the complete artificial breeding process is changed into natural insemination, namely, a natural breeding environment for the Carassius aurutus gibelio is simulated in a pond so as to enable the male and female parents to perform copulation and breeding. The invention has the following advantages: the pond is utilized to create the natural breeding environment for the Carassius aurutus gibelio so as to improve the fertility rate which can reach above 95% generally; and natural copulation between the female and male parents is finished in the pond, thus avoiding parents from being injured, improving the parent survival rate, saving a great amount of manpower and material resources and effectively enhancing the breeding efficiency. Therefore, the semi-artificial breeding technology for the Carassius aurutus gibelio in the invention can solve the problem of breeding the Carassius aurutus gibelio in a scale.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and specifically relates to a method for large-scale artificial propagation of heterogeneous gibel carp seedlings by using ponds. Background technique [0002] Allogenetic gibel carp is bred by artificial crossing of triploid Founder gibel carp (female parent) and diploid carp (male parent) for gynogenesis. Because the fish has the characteristics of fast growth, large individual and strong stress resistance, it shows good economic traits in aquaculture production, and its fry are in short supply. At present, the artificial propagation of heterogeneous gibel carp in my country adopts the full artificial propagation technology. Due to the artificial insemination method, this full artificial reproduction technology mainly has the following defects: the one, it is easy to cause the parents to be injured during artificial insemination, which affects the survival rate of the parents; The large-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 邴旭文戈贤平胡海彦狄瑜
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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