Crucian carp farming techniques
1. Variety selection
When choosing a variety, you can choose a high-quality variety that grows quickly, has a high yield, is suitable for farming in our region, and has strong disease resistance.
2. Breeding conditions
Pond area in 3 acres - 5 acres, water depth of 1.5 meters - 2 meters, to ensure that the water source is sufficient, stable, pollution-free, good water quality, pond drainage and irrigation is convenient, no leakage, the bottom of the pond silt to maintain at 10 cm - 15 cm thickness can be, each pond requires equipment such as aerators.
3. Reasonable stocking
Generally, about 2,000 winter fish species are stocked per acre, and about 2,500 summer flower fish species are stocked. The stocking time should be as early as possible, the specifications should be large and neat, the winter fillet fish species should be 5 cm - 6.5 cm, and the summer flower stocking should be as large as possible. In order to use the organic detritus and plankton of the pond, it can be combined with filter-feeding fish such as silver carp and bighead carp, and the proportion of collocation is controlled at 10%-20%. Stocking should not be accompanied by carp grass carp.
4. Feed and fertilize
When feeding and fertilizing crucian carp, it should be based on the principle of "feeding refined feed, supplemented by fertilization and water quality", and carry out scientific and efficient feeding and fertilization.
Set up 2 bait tables per acre at 3-4 meters away from the pond. Domesticate fish with the same frequency of sound (such as the sound of tapping the feed bucket) 5 minutes before feeding, usually 5 days to 7 days. Feed regularly according to the water temperature, when the water temperature is below 20 ° C, once a day, the time is 9 a.m. or 4 p.m.; When the water temperature is 20 ° C - 25 ° C, feed twice a day, at 8 a.m. and 5 p.m.; When the water temperature is 25 °C -30 °C, feed 3 times a day, at 8:00 a.m., 2:00 p.m. and 6:00 p.m., respectively; When the water temperature is above 30 ° C, feed once - 2 times a day, selected at 9 a.m.
5. Breeding management
Pay attention to the clearing of ponds, the disinfection of fish species, the disinfection of tools and food grounds, the timely disinfection of water bodies and the prevention of drugs in the epidemic season of fish diseases. When fish are sick, they should be diagnosed and treated in time and prescribe the right medicine. Pay attention to the day and night patrol of the pond, find problems and deal with them in time. Implement fish rotation and marketing, and adjust the breeding density.
Extended Materials:
Crucian carp (scientific name: Carassius auratus, referred to as crucian carp, commonly known as crucian carp seeds, moon crucian carp, earth crucian carp, slender head, crucian carp, cold carp, hitou, crucian shell, river crucian carp. Commonly found in Eurasia, it is a common freshwater fish belonging to the genus Carp of the suborder Cyprinididae of the order Cyprinid.
Crucian carp is artificially farmed and selectively bred to produce many new species, such as goldfish, which is an ornamental fish that results from it, and the scientific name of the edible wild crucian carp is Carassius auratus.
Crucian carp is mainly an omnivorous fish that feeds on plants, and prefers to live in clusters and choose food. The meat is tender and has a high nutritional value, each 100 grams of meat contains 13 grams of protein, 11 grams of fat, and contains a large number of calcium, phosphorus, iron and other minerals. Crucian carp has extremely high medicinal value, its sex is flat and sweet, into the stomach, kidneys, and has the effect of replenishing deficiency, removing the qi, warming the stomach, and replenishing the vitality. Crucian carp is widely distributed, and it is produced all year round in the waters of all parts of the country, with crucian carp in February to April and August to December as the most fertile, which is one of the important edible fish in China. The maximum body length is about 30 cm, the habitat depth is 0 to 20 meters, non-toxic, economical edible fish, good quality and low price. It is mostly produced in the Yellow River Basin, yangtze River Basin and Pearl River Basin, of which Erhai crucian carp is more famous.