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A kind of polyculture method of black-spotted catfish

A technology of polyculture and polyculture of the black spotted hornet, which is applied in the field of fish farming, can solve the problems of slow growth and long growth time, etc., and achieve the effects of improving the survival rate, the survival rate and the operability.

Active Publication Date: 2022-04-26
西藏自治区农牧科学院水产科学研究所
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  • Abstract
  • Description
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Problems solved by technology

[0003] In terms of fishery, the black-spotted catfish is deeply loved by the masses because of its tender meat and few intermuscular spines. It has high fishery value and is an important fishery target in the local area. However, its growth and development are relatively slow, and it usually takes a long time to grow to reach sexual maturity.

Method used

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  • A kind of polyculture method of black-spotted catfish

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Experimental program
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Effect test

Embodiment 1

[0035] 1) Prepare a 3.0x0.5x0.4m parallel groove, and put cobblestones of suitable size and smooth surface in the parallel groove, wherein the outlet of the parallel groove is provided with an anti-escape screen with an aperture of 1.0mm;

[0036] 2) Use potassium permanganate with a concentration of 5mg / L to infuse and disinfect the entire parallel tank, soak for 24h, and then clean it with clean water;

[0037] 3) After ultraviolet sterilization and disinfection of the parallel tank, open the water inlet valve and fill it with water;

[0038] 4) Adjust the size of the water inlet valve so that the water flow in the entire parallel tank is in a micro-flow state;

[0039] 5) put into the 1:30 ratio of black spot larvae fry and Lhasa naked larvae, wherein, the individual size of the black spot larvae is 3cm, and the individual size of the Lhasa larvae is 1.5cm;

[0040] 6) Cover the 1 / 2 parallel slot with a plate, and periodically feed chopped frozen chironomids larvae.

Embodiment 2

[0042] 1) Prepare a 3.0x0.5x0.4m parallel groove, and put cobblestones of suitable size and smooth surface in the parallel groove, wherein the exit of the parallel groove is provided with an anti-escape screen with an aperture of 0.5mm;

[0043] 2) Use potassium permanganate with a concentration of 3mg / L to infuse and disinfect the entire parallel tank, soak for 12h, and then clean it with clean water;

[0044] 3) After aeration and oxygenation of the parallel tank, open the water inlet valve and fill it with water;

[0045] 4) Adjust the size of the water inlet valve so that the water flow in the entire parallel tank is in a micro-flow state;

[0046] 5) put in the ratio of 1:10 to the fry and the larvae of Lhasa schizophrenia, wherein, the individual size of the larvae of schizophrenia is 3.2cm, and the individual size of the schizophrenia larvae is 1.4cm;

[0047] 6) Cover the 1 / 2 parallel slot with a plate, and periodically feed chopped frozen chironomids larvae.

Embodiment 3

[0049] 1) Prepare a 3.0x0.5x0.4m parallel groove, and put cobblestones of suitable size and smooth surface in the parallel groove. Among them, the exit of the parallel groove is provided with an anti-escape screen with an aperture of 1.5mm;

[0050] 2) Use potassium permanganate with a concentration of 8mg / L to infuse and disinfect the entire parallel tank, soak for 36h, and then clean it with clean water;

[0051] 3) After aeration and oxygenation of the parallel tank, open the water inlet valve and fill it with water;

[0052] 4) Adjust the size of the water inlet valve so that the water flow in the entire parallel tank is in a micro-flow state;

[0053] 5) put into the 1:20 ratio of black spot schizophrenia fry and Lhasa larvae, wherein, the individual size of schizophrenia fry is 3.5cm, and the individual size of Lhasa schizophrenia larvae is 1.2cm;

[0054] 6) Cover the 1 / 2 parallel slot with a plate, and periodically feed chopped frozen chironomids larvae.

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Abstract

The invention belongs to the field of fish culture, and in particular relates to a method for polyculture of black-spotted catfish, comprising the following steps: 1) preparing a culture tank, and putting cobblestones in the culture tank; 2) using potassium permanganate for the whole culture 3) After cleaning the breeding tank, fill it with water; 4) Put in the black-spotted catfish fry and mixed fish fry; 5) Cover 1 / 2 of the breeding tank with a board Troughs, regular feeding feed. The method of the invention is simple and easy to operate, and has good operability, realizes the large-scale and standardized polyculture of wild catfish, can obviously improve the survival rate of catfish, and effectively protects the wild resources of catfish.

Description

technical field [0001] The invention belongs to the field of fish culture, and in particular relates to a method for polyculture of P. nigra. Background technique [0002] Glyptosterum maculatnom belongs to the class of Osteichthyes, Ostariophysi, Syriformes, Glyptosterum, and Glptostermuom. According to the existing reports, the black spot is mainly distributed in Lhasa (Regan, 1905b; Lloyd, 1908), Gyantse (Hora, 1923; Hora, 1951), Lhasa River, Shigatse, and Medog (Wu Xianwen, etc., 1981) in Tibet, China (Wu Xianwen et al., 1981). ), Lazi (Zhang Chunlin et al., 1964b), Nyingchi (Chu Xinluo, 1979) and Skili in India (Kapoor, 2002; Talwar, 1991), but no distribution was found in other regions. Among them, it mainly inhabits the Brahmaputra and its tributaries in Tibet, China (Wu Yunfei and Wu Cuizhen, 1992) and Indus in India (Walker, 1999). It is one of the important indigenous economic fish in the region. [0003] In terms of fishery, P. nigra is favored by the masses bec...

Claims

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Application Information

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IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 王金林王且鲁周建设潘瑛子曾本和旺久
Owner 西藏自治区农牧科学院水产科学研究所
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