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Using Well Water Salt to Breed Norwegian San Wenjing, Arctic Whitefish, Japanese Gold Carp Test
The Norwegian salmonella, Arctic white-spot frog, and Japanese golden pheasant are cold and temperate fishes. They have a wide salt range, spawning and hatching in freshwater, and they can be cultured in fresh waters of the sea and have high economic value. We began the introduction in October 2002. After a year of successful breeding experiments, we now introduce the test situation as follows. First, materials and methods The material culture experiment was conducted from October 2002 to September 2003. At the beginning of October 2002, it purchased 300 tails of Norwegian Squid, Arctic White Stork, and Japanese Stork from Benxi and counted 900. At that time, the average weight was about 0.25 kg, and the average body length was 25 cm. It was sent to my field from Benxi with a live Fish car for 6 hours. The well salt water is the water that I cultured from the gums and the turbot, the groundwater of the freshwater department, the bait used for breeding, and the small trash fish purchased from the coastal area of ​​the city. 2. Breeding conditions and methods (1) Farming conditions occupy three breeding ponds with an average area of ​​50 m2, a total of 150 m2, water temperature of 12--14°C, flowing water and oxygenated culture, dissolved oxygen content of 6 mg/l, pH The value is 7.0-7.2. (2) Method First, three breeding ponds are added to the freshwater 50--70 cm to be inflated. After the fry is sent, the Norwegian salmonella, the Arctic alba, and the Japanese alfalfa are put into three pools respectively. After two days of stability, they are added. Well brine, plus 10 cm of salt water each time. After 7-10 days of domestication, the fish can fully adapt to the well brine culture. Feeding 2 times a day, that is, morning and evening each time, the amount of feeding depends on the degree of feeding, no residual bait as a standard. Second, the test results After 3 months of cultivation, the growth rate of Auricularia pulchricorus is faster than that of Norwegian salmonellae and Japanese amaranths. The average weight of Auricularia trifolii reaches 1.25 kg, while the average weight of Norwegian amaranth and Japanese amaranth is 1.0. kilogram. Arctic white-spotted frogs are more ferocious than Norwegian salmonella and Japanese goldfish. By September 2003, the average weight of the Arctic Whitefish had reached 3.5 kilograms and its body length was 55 centimeters. The average weight of Norway's clams was 2.5 kilograms and the body length was 52 centimeters. The Japanese eel was 2.0 kilograms and its body length was 46 centimeters. 2. During the process of acclimation from freshwater to seawater, Norway's Sanwen has greater adaptability than Japan's Golden Carp and Arctic Whitefish. The overall adaptability is smaller than big fry. In the process of domestication, the survival rate of Norwegian salmonella reached 95%, the survival rate of Japanese golden trout reached 90%, and the survival rate of Arctic white trout reached 65%. 3. When feeding small pure fish alone, the color of the fish is light yellow; the mixed fish, shrimp and shrimp occupies 15%; the color of the fish is pink and the color of the wild salmon is similar, but the fatty pattern of the fish is not obvious. 4. In the later stages of the cultivation, we did some fish disease infection tests, feeding the dead fish of the ascites and the dead fish of turbot to Norwegian salmonella, Arctic occidentalis and Japanese golden pheasant. Two days later, the frog and salmon also had ascites. Ill and found death. III. Discussion After one year of breeding trials, we believe that squid and squid are very promising modern fishery parks – an excellent breed. It is salt-tolerant and can be cultured in wells with salt water. The fish's flesh quality, color, and taste are better than those in freshwater.