CN102726326A

CN102726326A - Pond culture method of loaches

Info

Publication number: CN102726326A
Application number: CN2012101890533A
Authority: CN
Inventors: 孙雪方; 马宁道
Original assignee: JURONG GUOZHUANG MINFU AQUATIC PRODUCT CULTURE SPECIALTY COOPERATIVE
Current assignee: JURONG GUOZHUANG MINFU AQUATIC PRODUCT CULTURE SPECIALTY COOPERATIVE
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2012-10-17

Abstract

The invention discloses a pond culture method of loaches, belonging to the field of aquiculture. The method comprises the following steps of: draining all water in an earthen pond in the last quarter, splashing quicklime, performing light illumination for 2-3 days, then injecting water, starting to dress a fertilizer, then releasing seedlings for 4-6 days, putting in 120-145kg of animal manure per mu, enabling the transparency of a water pond to be 20-30cm, and then putting in larvae of the loaches, wherein the larvae are immersed in 2-3% common salt water before the larvae are put in; and starting to put baits in the earthen pond when the water temperature is higher than 15 DEG C, wherein the feeding amount per day is 1-3% of the body weight of the loaches and the feeding amount is increased along with the increase of the air temperature, the water is changed once every week in spring and autumn, the water is changed once every 2-4 days in summer, and the water change amount every time accounts for 1/3-2/3 of the total water amount. The larvae of the loaches are immersed in the common salt water before putting in so as to prevent saprolegniasis and simultaneously enhance the resistance of the loaches to pathogenic bacteria. According to the pond culture method disclosed by the invention, the survival rate of the loaches in summer is significantly improved, the oxygen content in the water is ensured, and the yield of the loaches is improved. The pond culture method disclosed by the invention is particularly suitable for higher-density culture of the loaches.

Description

A kind of loach pond breeding method

Technical field

The present invention relates to aquaculture field, relate in particular to a kind of loach pond breeding method.

Background technology

Loach is the very high fish of a kind of nutritive value, and is small and elongated, be distributed in national rivers and creeks, irrigation canals and ditches, pond, paddy field, lake, the reservoir, and be a kind of small-sized economic freshwater fish.Loach is an Omnivore, and the juvenile phase is mainly sought feed of animal origin, root, the stem of can ingest after growing up some algae, plant; Loach is except breathing with the cheek; Also can carry out dermal respiration and intestinal respiration, but summer, if water quality control is bad; The loach cultivation density is too high, still can cause a large amount of loach death by suffocation.

Summary of the invention

Goal of the invention: the purpose of this invention is to provide a kind of method that improves the loach pond large-scale farming of survival rate in summer.

Technical scheme: in order to realize the foregoing invention purpose; A kind of loach pond breeding method of the present invention comprises: the water that will go up Ji Tuchi is put dried, and the quicklime illumination water filling after 2 ~ 3 days of splashing is put seedling and begun to impose fertilizer before 4 ~ 6 days; Throw animal manure 120 ~ 145kg for every mu; Make the pond transparency at 20 ~ 30cm, throw in the loach summer flower then, be dipped in before summer flower is thrown in 2 ~ 3% the saline solution; Treat that water temperature begins when being higher than 15 ℃ in native pond, to throw in bait, every day, feeding volume was 1 ~ 3% of a loach body weight, increased feeding volume along with temperature raises; Spring and autumn changes water weekly once, and per 2 ~ 4 days of summer was changed water once, and each quantity of exchanged water is 1/3 ~ 2/3 of a Total Water.The loach summer flower soaks saline solution before input be in order to prevent saprolegniasis, can to strengthen the resistance of loach to germ simultaneously.

The present invention has strengthened the summer management of loach pond culture, and since June, the variation of weather might be compared suddenly, and partial pressure of oxygen is lower in the pond.In order to guarantee the oxygen demand of loach in the pond, get into summer after, every mu of pond guaranteed 2 ~ 3 aerators operations when temperature was higher than 25 degrees centigrade.

As further optimization of the present invention, the loach summer flower throw in the back when getting into June to the pond photosynthetic bacteria of splashing, per 10 days every mu of photosynthetic bacteria 150g that splash.After throwing in photosynthetic bacteria, the visibility in pond is at 10 ~ 15cm.Photosynthetic bacteria can be used as the feed resource of loach on the one hand, can increase the fertile degree of water simultaneously, regulates water quality, the more important thing is that photosynthetic bacteria can produce oxygen, and can improve the loach survival rate in summer greatly.

Loach of the present invention is cultured and is used for the highdensity breed of loach especially, and it is every square metre 50 ~ 80 tail that said loach becomes the cultivation density of loach.

In order to improve water body, regularly to pond a small amount of quicklime of splashing.

Beneficial effect: a kind of loach pond breeding method of the present invention can significantly improve the survival rate of loach in summer, guarantees the oxygen content in the water, has improved the output of loach.The present invention is specially adapted to the loach of higher density and cultures.

Embodiment

The water of last Ji Tuchi is put dried, every mu of 100 ~ 120kg quicklime of splashing, illumination water filling after 2 ~ 3 days; Put seedling and began to impose fertilizer before 4 ~ 6 days; Throw animal manure 120 ~ 145kg for every mu, make the pond transparency, throw in the loach summer flower then at 20 ~ 30cm; Throwing in density is every square metre 50 ~ 80 tail, is dipped in before summer flower is thrown in 2 ~ 3% the saline solution; Treat that water temperature begins when being higher than 15 ℃ in native pond, to throw in bait, every day, feeding volume was 1 ~ 3% of a loach body weight, increased feeding volume along with temperature raises; Spring and autumn changes water weekly once, and per 2 ~ 4 days of summer was changed water once, and each quantity of exchanged water is 1/3 ~ 2/3 of a Total Water.The loach summer flower soaks saline solution before input be in order to prevent saprolegniasis, can to strengthen the resistance of loach to germ simultaneously.Since June, every mu of pond guaranteed 2 ~ 3 aerator operations when temperature was higher than 25 degrees centigrade.To the pond photosynthetic bacteria of splashing, per 10 days every mu of photosynthetic bacteria 150g that splash.After throwing in photosynthetic bacteria, the visibility in pond is at 10 ~ 15cm.Photosynthetic bacteria can be used as the feed resource of loach on the one hand, can increase the fertile degree of water simultaneously, regulates water quality, the more important thing is that photosynthetic bacteria can produce oxygen, and can improve the loach survival rate in summer greatly.In order to improve water body, regularly to pond a small amount of quicklime of splashing, every mu of consumption is 15 ~ 20kg, and every two weeks is splashed once.

Put in a suitable place to breed for 3 ~ 40,000 tail loach for every mu, the loach that utilizes the inventive method to culture, summer, the lethality of loach dropped to 1.2% from 2.8%; Put in a suitable place to breed for 4 ~ 50,000 tail loach for every mu, summer, the lethality of loach dropped to 2.1% from 3.2%, and the present invention is in order to improve loach oxygen uptake in summer, and input cost is not high, is fit to promote.

The above only is a preferred implementation of the present invention; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims

1. loach pond breeding method is characterized in that:

The water of last Ji Tuchi is put dried, the quicklime illumination water filling after 2 ~ 3 days of splashing is put seedling and was begun to impose fertilizer before 4 ~ 6 days, throws animal manure 120 ~ 145kg for every mu, makes the pond transparency at 20 ~ 30cm, throws in the loach summer flower then, is dipped in before summer flower is thrown in 2 ~ 3% the saline solution;

Treat that water temperature begins when being higher than 15 ℃ in native pond, to throw in bait, every day, feeding volume was 1 ~ 3% of a loach body weight, increased feeding volume along with temperature raises;

Spring and autumn changes water weekly once, and per 2 ~ 4 days of summer was changed water once, and each quantity of exchanged water is 1/3 ~ 2/3 of a Total Water.

2. a kind of loach pond breeding method according to claim 1 is characterized in that: the loach summer flower throw in the back when getting into June to the pond photosynthetic bacteria of splashing, per 10 days every mu of photosynthetic bacteria 150g that splash.

3. a kind of loach pond breeding method according to claim 1 is characterized in that: it is every square metre 50 ~ 80 tail that said loach becomes the cultivation density of loach.

4. a kind of loach pond breeding method according to claim 1 is characterized in that: regularly to pond a small amount of quicklime of splashing, be used to improve water body.

5. a kind of loach pond breeding method according to claim 1 is characterized in that: every mu of pond guaranteed 2 ~ 3 aerator operations when temperature was higher than 25 degrees centigrade.