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A polyculture method for overwintering greenfin horse-faced fish and star flounder

A technology of green-finned horsefish and star flounder, applied in fish farming, application, climate change adaptation, etc., can solve the problem of low utilization rate of water body space, improve the utilization rate of water body space, and avoid inter-species competition , the effect of improving efficiency

Active Publication Date: 2021-08-31
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Land-based industrial overwintering culture of a single species does not have a high utilization rate of water body space

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] A breeding base in Ganyu, Jiangsu breeds 10,000 star flounder, with an average body length of 13.4cm and an average weight of about 98.5g. There are 3 breeding ponds, each pond is 6.3m*6.3m*0.8m, and each pond is stocked. 3,200-3,450 fish, 4,000 green-finned horse-faced puffers transported back from Penglai in November 2017, with an average body length of 15.8cm and an average weight of 82.5g, were stocked in the breeding ponds of flounder that had been fed normally for a week. Each pond is stocked with about 1200-1400 tails. The green finfish is fed and fed normally on the third day after stocking. The water quality conditions and feeding management during the polyculture period are as follows:

[0022] The water temperature is 13-15°C, the salinity is 21‰-23‰, the pH is 7.5-8.5, the oxygen is continuously increased, the dissolved oxygen is kept at 6-8mg / L, the ammonia nitrogen is ≤0.01mg / L, and the water depth in the breeding pond is 50-70cm. Change the water 3-5 time...

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Abstract

The invention relates to a method for overwintering polyculture of green finfish and star flounder, which comprises: transporting the green finfish that needs to survive the winter from a net cage at sea to a culture workshop of star flounder through a water truck, selecting Healthy seedlings of the green-finned horse-faced fish were stocked in the breeding ponds where the star flounder had been normally fed for more than one week for polyculture. The present invention utilizes the difference in growth space and nutritional level of different species to carry out overwintering culture in the same water body space, which can improve the utilization rate of water body space, and at the same time ensure that there is no mutual harm between the polyculture species during the polyculture process during the wintering period, resulting in green fins. Loss of horse-faced fish or star flounder.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for overwintering polyculture of green-finned horse-faced fish and star flounder. Background technique [0002] The star flounder is a cold-temperate bottom fish with an oval body. It belongs to the Plaice family and the Plaice subfamily. The suitable water temperature for the genus Star Plaice is 15°C-23°C. There are various breeding modes for the star flounder, mainly factory farming. In the process of industrialized farming, underground mariculture is used in winter, and the water temperature is kept between 13°C and 15°C. Star flounder swallows the bait slowly after biting it, and the feeding intensity is relatively weak, which is significantly lower than that of turbot and flounder. [0003] The green-finned horse-faced fish belongs to the order Fuguformes, the family Unicornidae, and the genus Horse-faced fish. It is a warm-water bottom fish that can feed o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 秦搏吴艳庆刘鉴毅宋学锋英娜
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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