Lake mandarin fish scale culturing method

A breeding method and technology of mandarin fish, applied in the field of large-scale culture of mandarin fish in lakes, can solve problems such as the decline of economic benefits of lake fishery, the destruction of ferocious fish resources, and overfishing

Inactive Publication Date: 2012-12-12
INST OF AQUATIC LIFE ACAD SINICA
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Problems solved by technology

However, in almost all lakes in my country today, due to various reasons such as society and economy, the habitat is damaged or overfished, and the resources of medium and large ferocious fish have been severely damaged. Its natural output is almost close, and the economic benefits of lake fishery have declined

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  • Lake mandarin fish scale culturing method
  • Lake mandarin fish scale culturing method
  • Lake mandarin fish scale culturing method

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Experimental program
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Embodiment Construction

[0152] The large-scale breeding methods of lake mandarin fish are as follows:

[0153] 1 Bioenergetics of Mandarin

[0154] 1.1 Maximum feeding rate and growth rate

[0155] The maximum feeding rate and growth rate of Siniperca chuatsi are determined by the feeding-growth experiment. The experiment is divided into six temperature groups: 10, 15, 20, 25, 30 and 35℃. The weight range of the experimental mandarin fish was 47.22~540.15g. Ten mandarin fishes were selected for each experimental temperature, and they were randomly placed in the circulating filtration aquarium, one for each. Then feed with fresh loach to ensure that there is bait for 24 hours. Measure food intake every day. The experiment time at each temperature is 21 days.

[0156] Maximum feeding rate (C max ) Is expressed in grams / tail / day, and the growth rate is expressed in terms of the specific growth rate of the wet weight of the fish (SGR: % / day).

[0157] SGR = ln Wt - ln Wi t X 100

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Abstract

The invention discloses a lake mandarin fish scale culturing method, comprising feeding efficiency, defecation rate, excretion rate, standard metabolism, SDA, activity metabolism and fish physical ability value and growth sub-model. The growing conditions and the bait consumption rate of the piscivorous fish after stocking can be predicted by the model; water body is taken as the research site, the time and space distribution characteristics, the biomass, the structure of the main population, the population growth trends of the growth period, the bait base and tropic niche width and competition overlapping of the advantageous small-sized fish in the shallow water reeds lakes are systematically researched, thus establishing the quantitatively acquiring method of the small-sized fish in theshallow water reeds lakes, completing the productivity analysis and measurement of the advantageous population of the small-sized fish in the shallow water reeds lakes, and estimating the sustainableproduction capacity of the lake bait fish.

Description

Technical field [0001] The invention belongs to the technical field of freshwater fishery and aquatic products, and more specifically relates to a large-scale breeding method of lake mandarin fish. Background technique [0002] Freshwater lakes in my country have always been dominated by released cultured fish (grass carp, silver carp, bighead carp, herring, bream). These fish are mainly feed sources of herbivores, zooplankton and phytoplankton. In order to increase production, high-density stocking often leads to a decline in the quality of the water environment. The latest foreign research shows that stocking ferocious fish not only has no effect on water quality, but has the effect of improving water quality. Many precious fishes in my country are ferocious fishes, such as mandarin fish, black snakehead, catfish, etc. Therefore, the development of large-scale stocking of ferocious fish in my country is an important way to solve the contradiction between the development of lak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李钟杰刘家寿张堂林谢松光
Owner INST OF AQUATIC LIFE ACAD SINICA
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