The main techniques for pond fish farming include the following:
The first is the selection of aquaculture species, which is based on the local climate and natural environment, the biological characteristics of fish, natural feed resources, water quality, technical level, management level and other conditions to select the appropriate breed.
The environmental conditions of the pond and its improvement, there is a difference between the new open pond and the old pond. General adult fish breeding ponds require sufficient water, good water quality, no pollution, and the drainage is convenient and convenient. The water depth is 1.5 to 2 meters, and the area is 3 to 10 acres. The silt thickness at the bottom is about 20 centimeters. If conditions are not met in the pond, some modifications can be made.
According to the cultured species, determine the type and quality of feed needed, and the feeding is generally done in “four settings†(ie timing, fixed-point, fixed-holding, and quantitative). Most temperature-water fish start feeding at water temperatures above 15°C. June to September is the peak season for growth and feeding. For mixed filter or omnivorous fish, fertilization (basal and top dressing) must be considered for the cultivation of feed organisms for fish ingestion.
Pond fish farming techniques are mainly:
"Water" - the pond's environmental conditions and water quality conditions, should meet the requirements.
"Species" - that is, farmed fingerlings, including complete specifications, excellent quality, and sufficient quantities.
“Baitâ€â€”that is, farmed feed and fertilizer, must meet the nutritional needs of the cultured species. Formulated feeds should be formulated according to the different stages of growth and development of fish. Different types of feeds can be fed on the one hand, and fertilization can be directly used as feed for some fish. Natural food organisms can be cultivated for feeding.
"Mixing" - that is, reasonable polyculture, pond adult fish farming must be polyculture, can make full use of water and feed to obtain greater benefits, polyculture should fully consider the mutual benefits between the fish, but also take into account The side of competition.
"Dense" - that is, a certain breeding density, only to reach a certain density, in order to obtain high yield and high efficiency, the density of farming can be determined according to the natural environment, feed resources, technology, management, fish specifications and other aspects.
"Round" - that is, round catch, in the middle of the breeding process, will reach the listing of the fish listed, can reduce the pressure of the pond to accelerate the growth of pond fish, but also return the funds to a balanced listing.
"Prevention" - that is, the prevention and treatment of diseases, for all kinds of breeding diseases should be "prevention-based, prevention-based treatment, combined with prevention and control" principle, targeted medication.
"Management" - that is, daily management work, this is the most critical of the breeding, "three points of support, seven points" that reflects this, daily management includes: water quality management, feed and fertilizer management, disease management, mechanical management, patrol pond, Capture and so on.
"Machine" - that is, rational use of breeding machinery, high-yield farming must be equipped with farming machinery.
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