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Ecological-like culture method of glyptosternon maculatum fries

A cultivation method and technology of P. black spot, which is applied in the field of ecological imitation cultivation of P. black spot fry, can solve problems such as not meeting the natural growth requirements of P. black p. Survival rate, good growth, and high survival rate

Active Publication Date: 2020-04-14
西藏自治区农牧科学院水产科学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stocking density of this patent is 2000-2500 tails / m 2 , only suitable for 2-3 days old yolk seedlings, not suitable for fry after 20 days of filming; the cultivation environment has not achieved a real imitation ecology, and artificial compound feed is used, which does not conform to the natural growth of black-spotted catfish fry need

Method used

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Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a method of imitating the ecological cultivation of the black-spotted fish fry is first hatched in a parallel tank. After 10 days after the fry emerge from the film, they are opened with microparticle compound feed and chironomus larvae. After 20 days of breeding, they are transferred to the imitation ecological cultivation system. Breeding, throwing and feeding feedstuff is fly maggot;

[0030] The described ecological imitation cultivation system comprises a reservoir 1, a cement pond 3, a net cage 4 and a temperature control device 2, the net cage 4 is placed at the bottom of the cement pond 3, and a shading net is built above the net cage 4, A layer of sand is laid on the bottom of the net cage 4, and hollow bricks 42 are arranged above the sand; an ultraviolet sterilizing device 11 and an aeration and oxygenation device 12 are arranged in the reservoir 1, and the water outlet of the reservoir 1 is connected to The water in...

Embodiment 2

[0033] This embodiment is on the basis of embodiment 1:

[0034] The protein content of the microparticle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm.

Embodiment 3

[0036] This embodiment is on the basis of embodiment 1:

[0037] The protein content of the microparticle compound feed is 50-55%, the fat content is 10%, and the particle size is 0.2 mm.

[0038]The mass ratio of the microparticle compound feed to chironomus larvae is 1:3.

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Abstract

The invention provides an ecological-like culture method of glyptosternon maculatum fries. Hatching is performed in parallel tanks, after fries appear for 10 days, microparticle compound feed and chironomidae larvae are adopted for food intake, and the fries are transferred to an ecological-like culture system for culture after being cultured for 20 days and fed with fly maggots. The ecological-like culture system comprises a reservoir, a cement tank, a net cage and a temperature control device, wherein the net cage is placed at the tank bottom of the cement tank, a shading net is set up abovethe net cage, a layer of sand is laid at the bottom of the net cage, and hollow bricks are arranged above the sand; an ultraviolet sterilization device and an aeration device are arranged in the reservoir, a water outlet of the reservoir is connected with a water inlet of the temperature control device, and a water outlet of the temperature control device is connected with a water inlet pipe of the net cage through a pipeline; and a drain pipe is arranged at the bottom of the cement tank. Ecological-like culture of glyptosternon maculatum is truly realized, and the fries have high survival rate and grow well.

Description

technical field [0001] The invention belongs to the technical field of fish breeding, and in particular relates to a method for imitating ecological cultivation of black-spotted catfish fry. Background technique [0002] Black-spotted genus is a plateau cold-water fish, belonging to Siluriformes, genus family and genus genus. Distributed in the Brahmaputra River in India and Nyingchi, Tangga, Shigatse and other areas in Tibet, my country, the distribution altitude ranges from about 4200m to about 2800m. The water flow in the distribution area is relatively turbulent, and the water temperature is lower than 15℃ all year round. [0003] Although the production of Scorpidae fish is not large, but because of the tender meat and few intermuscular spines, this kind of fish is deeply loved by the masses and has a certain fishery value. In recent years, due to human intervention, the water ecological environment has undergone tremendous changes, coupled with serious human fishing, ...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17A01K61/80A01K63/00A01K63/04A23K10/20A23K20/147A23K50/80
CPCA01K63/003A01K63/04A01K63/042A23K10/20A23K20/147A23K50/80A01K61/10A01K61/17A01K61/80Y02A40/81
Inventor 王万良周建设张驰刘海平潘瑛子曾本和王金林王且鲁刘飞张立
Owner 西藏自治区农牧科学院水产科学研究所
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