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Breeding and fry rearing method of trachidermus fasciatus

A breeding method and technology of fry, which is applied in the field of Songjiang perch, can solve problems such as obstacles in the cultivation of large-scale fry, and achieve the effects of improving hatching efficiency, survival rate, and spawning efficiency

Pending Publication Date: 2021-08-31
丹东市渔业发展服务中心中华人民共和国丹东渔港监督处
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Problems solved by technology

The reproductive characteristics of Songjiang perch are much different from those of most farmed fish. Wild Songjiang perch eats live fish and shrimp for a lifetime, which also causes many obstacles to the cultivation of large-scale fry.

Method used

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  • Breeding and fry rearing method of trachidermus fasciatus
  • Breeding and fry rearing method of trachidermus fasciatus
  • Breeding and fry rearing method of trachidermus fasciatus

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Embodiment

[0036] Basic conditions: the area of ​​the seawater pond is 20×667m 2 , depth 2m, polyculture sea cucumber; 10m 2 1 two cultivation pools, 1.5m deep; 10m 2 10 spawning pools, 1.5m deep; 8 hatching tanks, the size is: diameter 90cm, height 30cm; 8m 2 There are 20 rounded cultivation ponds, 1.5m deep.

[0037] In the present embodiment, the breeding of Songjiang perch, the fry cultivation method, the specific steps are:

[0038] (1) Overwintering management of broodstock

[0039] Prepare a seawater pond with a flat bottom and convenient drainage, with a water depth of 2m. In October, 50kg of wild freshwater prawns were collected and put into 20 mu of seawater ponds to meet the needs of broodstock during the wintering period. At the end of October, 660 wild Songjiang perch were collected, and the body weight was 50-100g, the body length was 80-150mm, and the body surface was not injured as broodstock. After screening, they were put into ponds for overwintering cultivation. ...

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Abstract

The invention relates to the field of trachidermus fasciatus, in particular to a breeding and fry rearing method of trachidermus fasciatus. The method specifically comprises the following steps: parent fish cultivation and wintering period treatment, artificial spawning induction, spawning and fertilized egg collection, egg mass incubation, newly hatched fry cultivation and large-scale fry cultivation and domestication. In the parent fish overwintering, wild living freshwater shrimps need to be caught in advance and cultured in an overwintering pond so as to meet food supply of the trachidermus fasciatus in a whole overwintering period. In the artificial spawning induction, a use method and dosage of an oxytocic are controlled so as to meet requirements of spawning induction of the trachidermus fasciatus. An egg collector used in the spawning is a transparent organic glass product so as to effectively avoid disturbance of a spawning behavior of the trachidermus fasciatus parent fish by turning over the egg collector when the spawning is checked, and can remarkably improve the egg collecting efficiency. The method can effectively improve a parent fish spawning rate, a fertilized egg hatching rate, a fry survival rate and an artificial compound feed domestication success rate, and is complete and efficient for breeding and fry rearing of trachidermus fasciatus.

Description

technical field [0001] The invention relates to the field of Songjiang perch, in particular to a method for breeding and frying Songjiang perch. Background technique [0002] Songjiang perch (Trachidermus fasciatus Heckel), commonly known as four-gill perch, daughter-in-law fish, and flower drum fish, belongs to Scorpaeniformes, Cottidae, and Trachidermus. In brackish water or pure fresh water. Juvenile fish go upriver in April, grow and fatten in fresh water, go down river from December to January, and spawn in spring. Adult fish feed on live fish and live shrimp. In my country, Songjiang perch is widely distributed. It is a common fish in the Bohai Sea, Yellow Sea, East China Sea coast and adjacent freshwater waters. It is known as one of the "Four Famous Fishes in China" for its delicious meat and changeable body shape. [0003] In recent years, the destruction of the environment and the fishing of Songjiang perch have caused the distribution area of ​​this species to ...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 孙述好冯春明马德利郑毅李明高杨袁甜王华生郝永丰刘新迪张刚姜洪许迪亮李志刚谷丰源
Owner 丹东市渔业发展服务中心中华人民共和国丹东渔港监督处
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