Commodity, high production and high efficiency
The whole body of squid is a treasure. The meat has no intermuscular puncture, and has a high consumption rate. It can be used as raw fish and fried fish, as well as smoked and canned foods. Its kisses, fins, liver, sputum, bone, tail, and notochord are all The finest cuisine, especially the "caviar" made of processed paddle quail eggs, is known throughout the world as a high-grade nutritious food. Its kisses, bones, and skins can be made into glue, and the skin can also be made into high quality leather. It has also been reported that the anti-cancer factors contained in salmon are 10-15 times that of sharks. Eating eel for a long period of time has special effects on cancer prevention, cancer prevention, stomach pain prevention and hair loss. In recent years, the artificial breeding of eel has gradually emerged, and people in the aquatic industry are optimistic about their breeding prospects. The carp is large in size and has a long life span. It has a high survival rate, a rapid growth rate, a high genetic plasticity, and a strong resistance to disease. It is easy for domestication. Under artificial science feeding conditions, when the nursery is raised to the end of the year, the individual weight can reach 0.7-1 kg, the 2nd instar can reach 2-3 kg, and the 3rd instar can reach 5 kg. There are many varieties of squid, which have been successfully tested and cultivated. Artificial breeding has passed and there are batches of saplings supplied, including scorpion fish, paddlefish, schistosomiasis, Siberian quail, and hybrid quail. Its commercial aquaculture has static water, flowing water and other farming methods, but it has not been widely promoted, so the number of eel products is very limited. Now we will quickly develop high-yield and high-efficiency new technologies for the commercial squid as follows: Rapid hydrostatic cultivation 1. Pond selection. The area of ​​the pond is about 1300 square meters, and the water depth is 1.5-2 meters. The water source is preferably reservoirs, rivers, and lakes. Water quality should be clean and free of pollution, and equipped with aerators. The pond is disinfected with quicklime clearing pool about a week before stocking. Note that bleaching powder should not be used to disinfect, because the growth of the catfish should avoid bleaching powder. 2. Seed stocking. Rapid hydrostatic cultivation generally introduces stocks with a length of 15 cm or less. 500-700 fishes are stocked every 667 square meters, and about 40 fishes are stocked with oysters and squid. The seedlings should be soaked with 3% saline for 20 minutes before stocking. 3. Feed feeding. The pond needs to be equipped with a feed table. According to the characteristics of carp, especially in the deepest part of the pond in the summer, the feed stand should be set at a depth of not less than 2 meters and 1-2 places per 667 square meters. Special catfish feed was fed to the fish. The crude protein content was greater than 35%, and the feed was conducted 3 times during the day (at 6 o'clock, 13 o'clock and 16 o'clock). At 13:00 at night, the feed amount was 2.5% to 4% of the carp weight. 4. Daily management. The pond should be changed frequently so that the transparency of the water is greater than 40 cm. When the water temperature of the pond rose to 28°C, the carp stopped feeding, during which time it was necessary to supply fresh water day and night, stop feeding, and start the aerator at noon on a sunny day. Rapid development of water Build the pool. The water conservation ponds range from 50 to 100 square meters in area, round, square and rectangular, with various water supply and drainage systems. In order to save water, each pool can be built into a ladder shape with a depth of 1.5 meters and a water depth of 80-100 centimeters. The pool roof is equipped with a steel shed, which can be installed with a greenhouse film and a shading screen. The water source should be sufficient, the water quality should be fresh, clean, with high dissolved oxygen, and the water temperature should be lower. The bottom of the reservoir can be immersed, and the underground spring water can be used after being aerated. 2. Place seed. It is advisable to use 30 to 40 tails of squid with a length of 15 cm or more per square metre. The specific stocking density depends on the conditions of the flow exchange, etc., and gradually reduces the density for a long time as the pool grows. 3. Feeding. Quickly raise the water to feed the special feed for squid, and it is better to use pellet feed. The grain size varies depending on individual fish size, and the crude protein content is required to be maintained at more than 40%, and fish oil content is appropriately increased, vitamins are added, and nutrition is balanced. The number of feedings is 4-6 times, and the bait rate is about 3%. Feed around the pool wall, reducing water flow when feeding. 4. management. The amount of water exchanged for raising water in a stream is preferably changed within one to 1.5 hours. Pay attention to water quality and water temperature regulation to ensure high dissolved oxygen. The sewage is discharged 2-3 times a week. Every time the sewage is drained, about 1/2 of the water is drained, and the edge is cleaned. The waste in the tank is exhausted completely. In summer, the temperature is high, the awning is put on a shading net, and the amount of water exchange is increased. Divert sewage to ensure that the water temperature is below 30°C. In the winter pool, special black membranes for aquatic products are used to protect the pool from frost, reduce the number of discharges, and prevent diseases.