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Process for raising gymnocypris przewalskii in net cage

A technology of cage culture and naked carp is applied in the field of naked carp commercial fish breeding in Qinghai Lake, which can solve the problems of huge difficulty in artificial breeding experiments, meet the needs of diet and market, expand the space for survival and breeding, huge market economic benefits and The effect of environmental ecological benefits

Inactive Publication Date: 2011-06-29
史建全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the naked carp in Qinghai Lake is an alpine saltwater fish, the artificial breeding test is very difficult, so there is no artificial breeding test technology for the naked carp in Qinghai Lake.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Cultivation of fish fry in ponds: "Wuzai" fry hatched from the naked carp artificial release station in Qinghai Lake are transported to the original naked carp breeding farm in Xining. After being cultivated with soybean milk in the pond for 25 days, they are domesticated and eaten with bait with a particle size of 0.8 mm. The feeding amount for each feeding is based on the last amount of feeding. After entering autumn, reduce the amount of feeding appropriately, and feed once a day at noon in winter, and increase the amount of feeding after the beginning of spring. By July of the vertical year, the size of the fish species can reach 8 cm. At this time, 1 + The cultivation stage of young naked carp species.

[0019] 2. Cage fish fingerling cultivation:

[0020] (1) Requirements for net gear: the mesh specification is determined according to the fry stocking specification, 1 + The mesh used for young naked carp species is 0.6 cm, the size of the cage is 4 meters x 4...

Embodiment 2

[0029] 1. Cultivation of fish fry in ponds: "Wuzai" fry hatched from the naked carp artificial release station in Qinghai Lake were transported to the original naked carp breeding farm in Xining. After being cultivated with soybean milk in the pond for 35 days, they were domesticated and robbed with bait with a particle size of 1.2 mm. The feeding amount for each feeding is based on the last amount of feeding. After entering autumn, reduce the amount of feeding appropriately, and feed once a day at noon in winter, and increase the amount of feeding after the beginning of spring. By July of the vertical year, the size of the fish species can reach 12 cm. At this time, 1 + The cultivation stage of young naked carp species.

[0030] 2. Cage fish fingerling cultivation:

[0031] (1) Requirements for net gear: the mesh specification is determined according to the fry stocking specification, 1 + The mesh size for young naked carp species is 0.2 cm, the size of the cage is 6 meters...

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Abstract

The invention belongs to the technical field of raising gymnocypris przewalskii commercial fish, and in particular relates to a process for raising gymnocypris przewalskii in a net cage. The technical scheme comprises three steps, namely pond fingerling culture, net cage fingerling culture and net cage commercial fish raising, wherein during the pond fingerling culture, 1+ year gymnocypris przewalskii fingerling culture is completed; during the net cage fingerling culture, 2+ year gymnocypris przewalskii fingerling culture is completed; and during the net cage commercial fish raising, commercial fish raising is completed. The gymnocypris przewalskii fresh water artificial raising process is succeeded in net cage raising, can be used for enlarging the surviving and raising space for the gymnocypris przewalskii, provides popular gymnocypris przewalskii commodity which has rich nutrition and dedicate flesh for people, meets the diet and market requirement of people, and has huge marketing economical benefit and environment ecological benefit.

Description

[0001] One: technical field: the invention belongs to the technical field of Qinghai Lake naked carp commercial fish culture, and specifically relates to a Qinghai Lake naked carp cage culture process. Two: background technology: [0002] Qinghai Lake naked carp <hereinafter referred to as naked carp> is the only aquatic vertebrate in Qinghai Lake, and it is at the core of the symbiotic ecosystem of fish and birds in Qinghai Lake. In the early stage of fishery production and development in Qinghai Lake in the late 1950s, both the yield and the quality of the catch were relatively high. In the 1960s, the highest annual output reached 28,000 tons, the average body length of the catch was 28.8 cm, and the average age was 10 years old; in the 1970s, the annual output gradually dropped to about 4,000 tons, the average body length of the catch was 26.9 cm, and the average age was 8 years old. Since the late 1970s, due to the drastic reduction of water inflows due to the dry cl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 史建全
Owner 史建全
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