Culture method for tilapia in high temperature phase

A farming method and tilapia technology, applied in the field of tilapia farming, can solve problems such as prone to large-scale diseases, increased mortality of tilapia, loss of electrolytes in salt, etc., so as to improve survival rate and economic benefits, reduce Bacterial infection rate and effect of reducing feed coefficient

Inactive Publication Date: 2017-03-22
GUANGXI ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high temperature, the reproduction and growth, metabolism and decomposition of organic matter of all organisms in fish ponds are accelerated, which can easily cause imbalances in bacteria, algae, water quality factors, nutrition, etc., so farmed tilapia is more prone to large-scale diseases
In the high temperature season, the body temperature of tilapia rises with the water temperature, the metabolism of tilapia accelerates, and the oxygen demand increases. It needs to increase the respiration to obtain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The tilapia culture method in the high temperature period includes the following aspects:

[0023] (1) Pond size selection, the tilapia breeding pond is 50m×30m, with an area of ​​1500m 2 , the water depth of the pond is controlled at 2m, the bottom of the pond is a soil layer, and the breeding density is controlled at 2000 / mu; build a sunshade above the fish pond (simple steel wire greenhouse, cover it with a shading net, and the shading net covers the fish pond 2 / 3 of the area).

[0024] (2) Pond management, in the high temperature season (water body surface temperature ≥ 31 ℃), it is the season of vigorous growth of tilapia, and also the season of frequent occurrence of fish diseases. In addition to strengthening pond patrols and carefully observing water quality and growth, attention should also be paid to Prevention of fish diseases. The tilapia breeding pond is replaced with new water every other week, and the amount of water changed is 1 / 2 of the pool water. Af...

Embodiment 2

[0028] The tilapia culture method in the high temperature period includes the following aspects:

[0029] (1) Pond size selection, the tilapia breeding pond is 40m×20m, with an area of ​​800m 2 , the water depth of the pond is controlled at 2.5m, the bottom of the pond is a soil layer, and the breeding density is controlled at 1500 / mu; build a sunshade above the fish pond (simple steel wire greenhouse, cover it with a shading net, and the shading net covers the fish. 3 / 4 of the pond area).

[0030] (2) Pond management, in the high temperature season (water body surface temperature ≥ 31 ℃), it is the season of vigorous growth of tilapia, and also the season of frequent occurrence of fish diseases. In addition to strengthening pond patrols and carefully observing water quality and growth, attention should also be paid to Prevention of fish diseases. The tilapia breeding pond is replaced with new water every 5 days, and the water change volume is 1 / 3 of the pool water. After th...

Embodiment 3

[0034] The tilapia culture method in the high temperature period includes the following aspects:

[0035] (1) Pond specification selection, the tilapia breeding pond is 45m×25m, with an area of ​​1100m 2 Around, the water depth of the pond is controlled at 2.2m, the bottom of the pond is a soil layer, and the breeding density is controlled at 2500 fish / mu; build a sunshade (simple steel wire greenhouse, cover it with a shading net, and cover it with a shading net) above the fish pond. 2 / 3 of the fish pond area).

[0036] (2) Pond management, in the high temperature season (the surface temperature of the water body ≥ 31 ℃) the season of vigorous growth of tilapia is also the season when fish diseases frequently occur. In addition to strengthening patrols in the pond and carefully observing the water quality and growth, etc., attention should also be paid to prevention and control Fish disease occurs. The tilapia breeding pond is replaced with new water once every other week, ...

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Abstract

The invention provides a culture method for tilapia in a high temperature phase. The method comprises the following steps: (1) selection of pond specifications: controlling the water depth of a pond at 2-2.5m, wherein the bottom of the pond is a soil-mud layer, and building a sunshade above the pond; (2) management of the pond: changing fresh water once every 6-9 days for the pond, wherein the water changing amount is 1/3-1/2 of the amount of the water in the pond, and then disinfecting the water with 300-500ml povidone iodine per cubic meter; and (3) management of feedstuff feeding: the feeding amount of the feedstuff is 1/3-1/2 of a normal feeding amount and is 1-2% of the body weight of a fish; and then feeding a certain amount of green feed, wherein the feeding amount is 0.2-0.3% of the body weight of the fish. According to the culture method provided by the invention, in a high-temperature season in summer, by virtue of a method of building the sunshade additionally above the pond to reduce the water temperature of the tilapia aquaculture pond, properly adding the green feed and reducing the feeding amount of the feedstuff, the in vivo metabolic burden of the tilapia is reduced, and the immunity of the tilapia is improved, and therefore, the breeding survival rate and the economical benefit are improved.

Description

technical field [0001] The invention belongs to the technical field of fish farming, and in particular relates to a tilapia farming method. Background technique [0002] Tilapia is a subtropical fish with the characteristics of miscellaneous food habits, low oxygen tolerance, delicious meat and few spines. It has become the main fish in global farming, and it is also an important species promoted by the Food and Agriculture Organization of the United Nations to the world. my country's tilapia aquaculture production ranks first in the world for many years. The high temperature season is the main growth period of fish, especially from June to September every year, which is the golden time for the fastest growth of fish. However, under high temperature, the reproduction and growth, metabolism and decomposition of organic matter of all organisms in fish ponds are accelerated, which can easily cause imbalances in bacteria and algae, water quality factors, nutrition, etc., so far...

Claims

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Application Information

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IPC IPC(8): A01K61/10A23K10/30A23K50/80
CPCA01K61/00Y02A40/81Y02A40/818
Inventor 唐瞻杨罗永巨甘西周毅梁军能钟欢肖俊郭忠宝
Owner GUANGXI ACADEMY OF FISHERY SCI
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