Breeding method for grass carp fingerlings

A cultivation method and grass carp technology, applied in the field of cultivation of grass carp species, can solve the problems of drug-induced liver injury, pond shallowing, pond bottom mud thickening, etc., and achieve the effects of strong vitality, disease reduction and quality improvement

Active Publication Date: 2015-06-03
湖北省水产科学研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The death of grass carp began in early May, and there was no obvious peak period for the death of fish in diseased ponds, but the disease course was longer and the recurrence rate was high; the mortality rate of adult fish and large-sized fish species in ponds was higher than that of small-sized fish species
[0006] 2. Environmental factors The pond has been used for many years and has not been dredged. The silt at the bottom of the pond becomes thicker and the pond becomes shallower. The adjustment can not keep up, leading to the deterioration of the pond enviro

Method used

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  • Breeding method for grass carp fingerlings

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1. Pond conditions and preparation:

[0052] The water source has sufficient water quantity, good water quality and meets the requirements of the fishery water quality standard (GB 11607-1989); the water inlet and drainage channels are unimpeded and separated; the road traffic is convenient; the pond area is 2 mu each, the pond ridge is intact, and the maximum water shut-off depth is not less than 2 meters, the pool bottom is flat and the silt does not exceed 30cm.

[0053] Expose the bottom of the dry pond to the sun for 10 days in winter, then add water to a depth of 10cm-20cm and select a period of continuous fine weather to disinfect with quicklimed water in a clear pond; start to plant (transplant) aquatic plants around Qingming, including bitter grass, hornwort and spinosa. Hydraphylla, the three kinds of aquatic plants (transplanted) should be roughly divided into divisions. The planting area ratio of bitter grass, hornwort and hypophylla is 1:0.5:0.5, and the pl...

Embodiment 2

[0063] 1. Pond conditions and preparation:

[0064] The water source has sufficient water quantity, good water quality and meets the requirements of the fishery water quality standard (GB 11607-1989); the inlet and outlet channels are unimpeded and separated; the road traffic is convenient; the pond area is 5 mu each, the pond ridge is intact, and the maximum shut-off depth is not less than 2 meters, the pool bottom is flat and the silt does not exceed 30cm.

[0065] Expose the bottom of the dry pond in winter for 15 days, then add water to a water depth of 10cm-20cm and select a period of continuous fine weather to disinfect with quicklimed water in a clear pond; start to plant (transplant) aquatic plants around Qingming. Hydrilphylla, the three kinds of aquatic plants (transplanted) should be roughly divided into divisions. The planting area ratio of bitter grass, hornwort and Hydra verticillium is 2:1:1, and the planting area of ​​ponds is 80% of the total area; the pond wa...

Embodiment 3

[0075] 1. Pond conditions and preparation:

[0076] The water source has sufficient water quantity, good water quality and meets the requirements of the fishery water quality standard (GB 11607-1989); the water inlet and drainage channels are unblocked and separated; the road traffic is convenient; the pond area is 10 mu, the pond ridge is intact, and the maximum shut-off depth is not less than 2 meters , the pool bottom is flat and the silt does not exceed 30cm.

[0077] Expose the bottom of the dry pond in winter for 20 days, then add water to a water depth of 10cm-20cm and select a period of continuous fine weather to sterilize with quicklimed water in a clear pond; start to plant (transplant) aquatic plants around Qingming, including bitter grass, hornwort and spinach Hydraphylla, the three kinds of aquatic plants (transplanted) should be roughly divided into divisions. The planting area ratio of bitter grass, hornwort and Hydra verticillium is 3:1.5:1.5, and the planting ...

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Abstract

The invention relates to the field of grass carp feeding, in particular to a breeding method for grass carp fingerlings. The method comprises the following steps: planting waterweeds in a cultivation pond for breeding the grass carp fingerlings, wherein the waterweeds comprise eel grass, hornwort and hydrilla varticillata; feeding fries in the cultivation pond with baits until the fries grow into the grass carp fingerlings. The breeding method for the grass carp fingerlings, provided by the invention, has the advantages that by planting the three waterweeds namely the eel grass, the hornwort and the hydrilla varticillata in the cultivation pond, the waterweeds interact with the grass carp fries in the growth process, the bred grass carp fingerlings are good in physique and exuberant in vitality, and the liver and gall syndrome cannot be caused in the growth process and the subsequent cultivation process.

Description

technical field [0001] The invention relates to the field of grass carp breeding, in particular to a method for cultivating grass carp species. Background technique [0002] Grass carp is an important species of farmed fish in my country, and the output of grass carp in inland areas generally accounts for about 40% of the total freshwater fish. Grass carp species with sufficient quantity and excellent quality are an important guarantee for realizing this pattern. [0003] Grass carp hepatobiliary syndrome is a common and harmful disease in ponds where grass carp is mainly raised. It mostly occurs in intensive high-yield ponds and mainly harms grass carp fingerlings and adult fish. The death of grass carp began in early May, and there was no obvious peak period for the death of fish in affected ponds, but the disease course was longer and the recurrence rate was high; the mortality of adult fish and large-sized fish species in ponds was higher than that of small-sized fish s...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 雷晓中张从义朱勇夫汪亮温周瑞
Owner 湖北省水产科学研究所
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