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Ecological breeding method for cyclically producing grass carps sold in supermarkets

An ecological breeding and supermarket technology, applied in the field of breeding, can solve the problems of no mature and feasible method, poor production quality of grass carp, pond tailwater pollution and river surge, etc., achieve high economic and social benefits, increase pond biological species, Effect of improving water purification ability

Pending Publication Date: 2018-04-24
PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Grass carp is currently the largest species of freshwater fish cultured in my country. The farming models vary widely across the country, and the market specifications are also different in size, but there is a common phenomenon, that is, the annual net production is generally low, less than 2,500 catties / mu, and the market specifications are not uniform. , large price fluctuations, low profits, and slow capital turnover
[0003] Moreover, in the breeding process, there are many diseases caused by poor water quality, which indirectly leads to frequent use of medicines and a large amount of water replacement.
This objective situation has resulted in the poor quality of grass carp production in my country, instability, low profits, and the phenomenon that pond tailwater pollutes rivers from time to time.
In addition, there is no mature and feasible method in China for the "supermarket grass carp", which has a huge market demand and is growing every year.

Method used

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  • Ecological breeding method for cyclically producing grass carps sold in supermarkets

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step 1. Pond preparation: The pond is cleared and sun-dried to keep 5-10cm of oxidized sediment; then use a 60-mesh dense mesh to filter the water into the pond to keep the average water depth of 2 meters; then, use 50 catties / mu of tea dregs to remove Wild fish; finally use 200 catties / mu of quicklime to increase water hardness and alkalinity.

[0057] Step 2, stocking of fish fingerlings: put in large-scale fish fingerlings, put 2000 grass carp at 300g / tail per mu, 500 crucian carp at 150g / tail, 40 bighead carp at 500g / tail, 15 silver carp at 250g / tail, Ensure that the fish carrying capacity of the main fish grass carp is about 1500 catties / mu, and the total fish carrying amount of other supporting fish is about 200 catties / mu.

[0058] Step 3. Feed feeding: twice a day, once in the morning and once in the afternoon, under the condition of ensuring sufficient dissolved oxygen in the feeding area.

[0059] Step 4. Water quality management: Splash 10 catties of quicklime...

Embodiment 2

[0064] A 500-acre pond of a farmer in Minmin Town, Zhongshan City, Guangdong Province, utilizes the method of Embodiment 1 of the present invention to grow grass carp in supermarkets. Grass carp is the main species, silver carp and bighead carp are breeding fish, and the cycle lasts for 3 years from 2015 to 2017. Produce and sell fish 5 times a year. The annual net output of grass carp in the supermarket exceeds 5,000 jins, and the annual gross compound profit rate is 50%. It only adds river water to the pond and does not drain it to the outside, reaching the zero discharge standard.

Embodiment 3

[0066] A 100 mu pond of a farmer in Leping Town, Foshan, Guangdong Province, utilizes the method of Embodiment 1 of the present invention to grow grass carp in supermarkets. Grass carp is the main species, and silver carp, bighead carp, and fork tail are breeding fish. From 2015 to 2017, 3 consecutive years Annual cycle production, fish sold 5 times a year, the annual net output of grass carp in the supermarket exceeds 5,000 jins, and the annual gross compound profit rate is 60%. Moreover, only river water is added to the pond without external drainage, reaching the zero discharge standard.

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Abstract

The invention relates to a breeding method, in particular to an ecological breeding method for cyclically producing grass carps sold in supermarkets. The method comprises the following steps of pond preparation, fry stocking, feed feeding, water quality management, adult fish harvesting, fry supplementing and cyclic harvesting and fry supplementing. By means of the breeding method, fry can be continuously put five or more times in a year, fishes are sold five or more times, the annual net output is more than 5,000 kg / mu, water replacement or drug application is not needed, and cyclic production is achieved; according to the method, pond water can be fully utilized, the relative stability of water quality and sediment quality is kept, and the method has extremely high economic and social benefits.

Description

technical field [0001] The invention relates to a breeding method, in particular to an ecological breeding method for circularly producing supermarket grass carp. Background technique [0002] Grass carp is currently the largest species of freshwater fish cultured in my country. The farming models vary widely across the country, and the market specifications are also different in size, but there is a common phenomenon, that is, the annual net production is generally low, less than 2,500 catties / mu, and the market specifications are not uniform. , the price fluctuates greatly, the profit is low, and the capital turnover is slow. [0003] Moreover, in the breeding process, there are many diseases caused by poor water quality, which indirectly leads to frequent medication and a large amount of water replacement. This objective situation has resulted in the poor quality, instability, and low profit of grass carp production in my country, and the phenomenon that pond tailwater po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K63/04
CPCA01K63/04A01K63/042A01K61/10Y02A40/81
Inventor 余德光廖国礼张凯谢骏王广军李志斐
Owner PEARL RIVER FISHERY RES INST CHINESE ACAD OF FISHERY SCI