Also known as Osmanthus osmanthus fish, meaty benthic fierce fish, the meat is tender, delicious, nutritious, rich in protein, amino acids and other trace elements, can make up the five internal organs, benefit the spleen and stomach, inflatable blood, treatment of loss, applicable In the qi and blood weak constitution. It is distributed in rivers and lakes in the south, and it is mainly used for preying on small fish and shrimps. The natural yield is quite high. Artificial breeding techniques are simple, the cost is small and the effect is quick. It is a good project for getting rich. This issue introduces a group of squid breeding techniques for farmers' reference. 1, artificial breeding techniques There are many kinds of squid, but artificial breeding generally chooses scallops and big eyes. Squid matured earlier, males generally matured in winter, females had 2 winter ages, and the smallest individual with sexual maturity was 210 mm and weighed 250 grams. The amount of spawning of squid is generally between 2.7 and 213,000 grains, and the amount of eggs is directly proportional to the size of the fish. Natural spawning occurs in rivers, lakes and reservoirs. The spawning season in the Yangtze River basin is generally from May to July, spawning is pleasing to the surface, and eggs can be spawned many times in the year. Spawn more at night, eggs floating, round beads, orange, with oil balls. The egg diameter is 1.2-1.4 mm. After fertilization, the ovary expands and the egg diameter is about 2 mm. Artificial breeding can choose 1 to 2 kilograms of healthy body without injury or indiscriminate broodstock feeding, feeding wild fish or commercial feed fish, can be artificial oxytocin, let it ovulate naturally, its egg is semi-drifting, can float with the water flow Complete the incubation. Water temperature 21 °C ~ 24 °C can be hatched after 72 hours, the initial hatch larvae length 4.2 ~ 4.4 mm. Squid eggs are slightly sticky and have a larger specific gravity than water and can easily sink to the bottom. Incubation in the loop should increase the flow rate, not less than 0.2 meters per second. After 3 to 4 days of fertilized eggs, fry can be hatched. Artificial insemination methods can be used to obtain more fry, but also to fish natural fry breeding. Acrocephalus grows faster, with a maximum body weight of up to 10 kilograms, but the best-selling 0.5 to 1 kilogram size on the market. Squid have a strong meat habit, lack of feed will eat each other, affect the survival rate. It is advisable to use cement pools for seedling cultivation, and an area of ​​several tens of square meters is appropriate. Fresh water and micro-flows are required. In addition, a small feed fry cultivation pond shall be attached, and the feed fish shall be synchronized with the catfish during the breeding period to ensure the supply of live feed. In the case of adequate feed fish, the fry can be reared for 10 to 15 days and can be bred into 3 cm of summer fish species, which can be transferred into adult fish culture. 2. Daily feeding methods The single-culture is kept in a special pond, the pond area is about 1 mu, the water depth is 1.5-2 meters, the water quality requirements are fresh, the water should keep microfluid, about 3 centimeters of summer carp are put in about 1000 acres, and according to the stock of fish, Luofei is put in a reasonable amount. Wild fish such as fish, wheat spikes, and shrimps, or meat dumplings of snails and clams, are eaten by squid, and the feed amount is fed from 3% to 5% of the total weight of the squid. Polyculture is generally started in May or so after stocking mullet species, and the majority of wild fish cultivating fish ponds can be placed in about 3 centimeters or so species of bream with 20 to 40 tails. At the same time, 30 to 50 tails of domestic fish are to be placed. Carp is twice as big. Stocking ponds with more tilapia and squid stocks can be stocked with 50-70 fish per acre; ponds with too many tilapia breeding stocks have about 100 fish per acre. Mixed fish ponds should not be stocked with summer flowers such as oysters and oysters, because the squid will grow fast and eat small-sized fish. Since the carp consumes more oxygen than the fish, the water quality of the polyculture carp ponds should not be excessive, and new water should be injected regularly. The adult fish ponds are set in adult fish ponds, and the natural wild fishes in the pond are mainly used as feed, and some tilapia broodstock breeding stocks can also be fed. The pond near the rivers and lakes can be filled with rivers and rivers, and wild fish can be used as food. Carp feeding 4 to 5 months, can be grown into about 300 grams of commercial fish, per acre can produce carp 5 to 8 kg. The squid has a good ability to distinguish bait and feed on live fish and shrimp. Even if it is a newly hatched fry, it needs to ingest the seedlings of other fish. When it grows up, it also eats live fish, and also eats shrimp and quail. Wait. In order for the carp to eat nutrient-balanced, a variety of feed fish should be fed.鲮, 鲢, 鳙, 鲫, 鳊, etc. are all good feed fish. Under the premise of palatability, the specifications should be slightly smaller, so that individuals of different sizes can feed, and the product specifications developed are high and the product value is high. Feeding the feed fish takes a small number of times, and it is generally appropriate to eat it on the 5th to the 7th day. Feeding should be timely, and the feed must not be fed out of the middle. Otherwise, the catfish may cause gastro-intestinal diseases and other diseases due to hunger and satiety. In winter and early spring, the water temperature is low and the carp eats less food. It is advisable to eat 7 to 10 days for each feeding. Before feeding, the feed fish must be immersed in a drug bath to kill insects, prevent the pathogen from being carried by the feed fish, and cut off the route of pathogen transmission. Can be soaked in 100 to 150 international units of formaldehyde solution for 10 to 15 minutes; or soaked in 3% salt + 8 IU penicillin solution for 3 to 5 minutes. Feed fish with diseases such as sporeworms, enteritis, and hemorrhagic diseases must not be fed to squid, and feed fish purchased from outside must be treated carefully to prevent the purchase of feedstuff fish left over from the diseased pond and cause disease infection. 3, strengthen daily management If the water quality of the rearing pond is too thin, the growth rate of the carp is slow and the disease is frequent; over-fertilization results in more organic matter, more oxygen-consuming factors, and the water quality is easily deteriorated. The water quality is moderate, and the transparency is about 30cm. The water quality is refreshing and oily green. It is suitable for the safety of carp habitat, the plankton content is high, the photosynthesis oxygen production is large, the dissolved oxygen is rich, and the beneficial bacteria species are dominant. Suppresses the reproduction of disease microorganisms. If the water quality is too fat, some old water should be taken out and then the new water should be added. However, the amount of water to be replaced should not be too high. Usually, the water level is about 30 centimeters. The amount of water changed is too large. The drastic changes in the pond water environment will cause the catfish to produce Excite the reaction and cause disease. Oxygen not only affects the respiration and life safety of fish, but also affects the food intake, digestion, absorption and growth of fish, and affects other water quality factors. Dissolved oxygen is the most important water quality factor. When dissolved oxygen is abundant in water, fish have large food intake, high digestion and absorption utilization rate, rapid growth rate, low feed coefficient, beneficial aerobic bacteria, strong reproduction, and acceleration to macromolecule organics and harmful substances. Decomposition of poisons accelerates the material circulation capacity of ponds, thereby increasing the productivity of fish ponds. The dissolved oxygen in the pool should be maintained at more than 4.5 milligrams per liter, and the minimum period should be no less than 3 milligrams. If it is less than 2 milligrams, fish will have a "floating head." The carp is high in oxygen consumption and weak in resistance to hypoxia and should be equipped with a generator set, an aerator, and a chemical booster for use in emergencies. Should be equipped with 0.4 ~ 0.5 million impeller type aerator, the boot time is usually around midnight to the next day after the sun comes out, at noon from 10 to 12 hours boot 1.5 to 2 hours, if the weather should be early boot and extend the boot time. 4, prevent disease in advance Carp is a fish with weak disease resistance and poor stress resistance. After many years of artificial feeding, the pathogens accumulate year after year. Diseases are transmitted to each other by water sources and feed fish. Carp sensitivity to drugs, should strengthen management to prevent diseases in advance, to "mainly prevention, prevention and control, early diagnosis and early treatment" as a principle, "prevention" is not simply a drug prevention, but should be from the clear pond disinfection, seedling procurement, Feeding fish drug bath disinfection, feeding to water quality management and regular drug prevention can only be effective for comprehensive prevention. The density of squid rearing and the amount of food consumed are large. Especially during the middle and late period of feeding, metabolic wastes are decomposed by bacteria to produce a large amount of toxic substances such as nitrites, ammonia nitrogen, methane, and hydrogen sulfide. Organic oxygen consumption is also large. Affect the feeding, digestion, absorption, growth and development of carp, reduce carp immunity and disease resistance, resulting in a large number of disease microorganisms, causing disease. The situation of fish ingestion, the stock of feed fish, changes in water quality, and disease conditions should be known in a timely manner, and problems should be solved as soon as possible. The concentration should be calculated when administering the drug, and the low dose or drug should be stopped during the season when the water temperature is high. Should adhere to regular use of oxidized drugs to change the end, decomposition of residual bait feces, regular testing of water to check whether there are insects, etc., in order to timely targeted treatment, use less chlorine disinfection, use of mild iodine disinfection, regular organic acid , Detoxification stabilizes water, breaks the surface tension, increases dissolved oxygen, appropriate anti-stress, anti-virus, and enhance the physical professional fish medicine. Http://Content/c98305eb-d97d-4fb1-9422-8f9158dd6661?cType=2 Hemp Container Plant Factory,Container Farm Hydroponics,Grow Container Hydroponics,Hydroponic Vertical System Qingzhou JuLong Agriculture Equipment Co.,Ltd , https://www.julonggrowtech.com