The use of cages for intensive fish farming of California salmon can also provide excellent economic benefits, and cages can be set up in reservoirs, lakes, rivers, and ponds.
First, cage provision and placement. The cage is a Lux-type knotted double-layered cage with a specification of 4m 4m 2m and a mesh size of 2.5cm. The net row floater is made of bamboos, the main lanes are double-rowed with bamboos, the auxiliary lanes are single rows of bamboos, and the cages are separated by 2 meters. Shenzi is a cement block weighing 1 kilogram each, 8 sinks per net, and bamboo rafts fixed with 6 cement piers, weighing 60 kg each. (Cage area is set according to needs, generally 16 to 30 square meters should). The cages can be installed in reservoirs, lakes, rivers and ponds, and the cages can be moved according to the water level changes to keep the depth of the cages at more than 3 meters.
Second, farming methods. 1. Single-care cages: California salmon are kept in cages on a separate basis, and feeds are regularly fed on a daily basis for high yields. 2. Set up the cage: In the cage, raise the California salmon, and at the same time, plunge the pecking bream and carp species at once. During the aquaculture process, with the growth of California salmon, the maggots and oysters, which mainly eat plankton in cages, are also growing. The salmon in the cages have abundant palatable food and are free from external interference. Eat. As the number of bait fish gradually decreases, the density of California salmon can be kept within a relatively reasonable range.
Third, aquaculture technology. 1. Water selection: Generally selected in the middle and upper reaches of the river's main channel, the living area of ​​the reservoir, the vicinity of the auxiliary dam, and the deep water area of ​​the lake, and avoid setting up cages in the fast-flowing waters. 2. Into the box time: According to the weather conditions in different places, the water temperature above 15 °C, you can put fish into the cage, the sooner the better, can increase the growth time. Considering the source of the bait fish, if the bait is used for bait stocking, then the timing of the arrival of the California Mackerel seedlings should be considered in consideration of the breeding seasons of pupa and pupa, as well as the bait-plankton breeding season of the pupa in the water area. 3. Stocking densities: The cages are raised with Californian catfish, and the density is preferably 20 to 25 tails per square meter; the nesting density is 6 to 8 tails per square meter. Feed bait and carp are put into the box at the same time, and their density is preferably 250-300 times that of California catfish species. 4. Feed: Whether it is a single raise or a nest, California bait fish should be palatable. If the bait fish's body length is more than 70% of California salmon, California salmon will have difficulty in predation, swallowing, biting, will be Card is dead; if the individual is too small, the amount of bait swallowed each day is too large, raising the cost of feeding; the body length of the bait fish should be 30% to 50% of the length of California salmon. 5. Timing binning: There is a significant imbalance in the growth of salmon in California. The individual size of California salmon in cages will vary widely within a short period of time. To prevent mutual food, and the determination of bait fish specifications, must be sized Different specifications grading rearing. The net size of the cages should not be the standard for bait fish. If the mesh is too small, the flow of water inside and outside the cage will be poorly exchanged and the water quality in the tank will be deteriorated. If the cage is washed frequently, the labor intensity of the cage management will be increased. The size of the first-class cage net for California salmon is about 1 cm. When the salmon of California grows to more than 100 grams, it goes to the second cage for rearing. 6. Daily management: Adhere to the daily inspection box, often clear the box, clean the cage every 15 days, in order to maintain a smooth water exchange, fresh, found that the cage has a rat hole or damage, to repair in time to prevent fish escape. During the flood season, prevent severe floods from hitting. According to the weather forecast, the cages were moved to the ventilation safety area before the rainstorm arrived. To strengthen the disease prevention and treatment, California catfish seedlings are disinfected before they are placed in boxes and bins. Feeded baits should be fresh and clean.
Zhejiang Xingye Group Co., Ltd. It is located in the famous Zhoushan fishery in the country, and the factory is located in Dagan, Putuo District, Zhoushan City, Zhejiang Province. It is a backbone manufacturer in the national aquatic product freezing processing industry and Zhoushan City, covering an area of 6000 square meters. Now it has four departments, namely: general office, finance department, production business department, and purchasing department. Four workshops, namely: freezing workshop, fish management workshop, ice-making workshop, and power workshop. The total number of employees is more than 140, including technical personnel. 20 people. The main products are Qing Zhan Yu, Huang Zhan Yu, Yang Bao Yu, horse noodle fish, pomfret, hairtail, portunus and all kinds of aquatic fish.
John Dory,John Dory Fish,John Dory Talleys,Dory Fish
Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com