Methods and techniques of fish culture in ponds

The most common mode of fish culture is pond culture, but pond culture, management is not simple, prevention of diseases, or pond water quality aging, drainage and irrigation is not convenient. Sometimes there are too many raw water plants, too much duckweed and algae, and the disinfection work is not easy to do. These are all problems of pond culture. So what are the methods and techniques of pond culture? let's take a look.

1. Clear the pond and disinfect

Dredge irrigation and drainage channels, but also clean up the mud in the pond, there may be more, leaving only more than 20 centimeters of mud. One mu pond uses 200 jin of quicklime to disinfect, keep the water 2 meters deep, clean after a week, no medicine to play a role, can release fish culture. Sometimes bleach can be used for disinfection.

2. Water quality maintenance

There are too many water plants, the air in the pond is too bad, and some things are rotten, affecting the water quality of the pond. So it is necessary to clean up too many weeds, or algae, some algae will emit harmful substances, so if you find it, you have to get rid of it. A small amount of duckweed can cover the shade, but too much, it is not good for fish growth, and duckweed grows very fast. Some algae pollute the water source, which will cause the water quality to become acidic, which is easy to age.

3. Disease prevention

Fish are easy to get sick in hot summer and autumn when the temperature is high and low, so the high temperature period should be sprinkled with lime once a month in the pond, 20 jin per mu. Spray with 250 grams of 90% crystal trichlorfon in aqueous solution. Use disinfection such as copper sulfate for fed food. Bleach and clean the feeding utensils as well. Sometimes gastrointestinal diseases are prevalent, and food can be fed with garlic.

4. Pond environment

The pond width is about 5 mu, the depth is more than 2 meters, the pond area is not too large, difficult to manage, drainage, or change water is more convenient. Need slightly alkaline soil, the soil is sandy soil. Can see 30 centimeters of the pond water visibility, the pond water is relatively clear, is the best light brown. But it's better to be clear before fertilizing.

Some methods and techniques of pond fish culture are mainly about management. All kinds of details must be dealt with.