The Australian silver oyster (Bidyanus Bidyanus), also known as the Ganding Fish, originates from the Morry-Darling river system in Queensland, Australia. In 1996, Changsheng Fisheries Co., Ltd. of Fengze District, Quanzhou City, Fujian Province, introduced Australian silver carp seedlings from Australia for trials. After many years of aquaculture trials, fish breeding, adult fish breeding, broodstock breeding, seed propagation, and different ecological conditions The success of the cultivation mode and Other aspects have been summarized and a complete set of Australian silver carp culture technology has been concluded. First, the biological characteristics of the Australian silver bream The Australian silver bream's fish body is slightly spine body type and side flat, the head is fine and small mouth, tail shank slender. The color from the side of the body line to the back is darker, often gray-black; below the body line to the abdomen is white gold or yellow; abdomen is white. The lateral line of the body extends significantly to the center of the tail shank. The Australian silver cod is the most mild farmed fish species in Australia. It is omnivorous and feeds on shrimps, insects, plankton, and seaweed in rivers, and has more food resources than carnivorous fish. The range of water temperature for its survival is very wide, 2 °C - 36 °C, the most suitable water temperature range of growth is between 15 °C - 30 °C, can be raised in fresh water or about 23% of the concentration of salt water. Silver Jurassic Australians inhabit the relatively clear water quality. Water transparency is between 15cm--40cm and pH 6.7--8.5. Excessive fertile water will affect their feeding. Second, the Australian silver carp breeding methods and disease prevention In the stocking density fry stage, one aerator per acre (with a water depth of about 90cm) is equipped, and 15,000 fish/mu per mu of body length 3.5cm can be fed - 20,000 tails/mu; Each acre of water surface (water depth is about 90cm) is equipped with an aerator, which can be used to deliver 3000-80m/-3500-tall species with a body length of 10cm--12cm. 2. Prior to stock management, ponds should be cleaned with quicklime or bleached clear ponds to completely kill pathogens. Due to the omnivorous nature of the Australian silver foraging, the source of feed is wide and easy to obtain. Generally, it is replaced by artificial feed, and floating salmon feed is most common. The feed requires 42% protein (yolk stage) and 36%--41% (formation stage). The daily feed volume is 3%--5% of fish body weight and is fed 2 times - 3 times a day. When feeding, we should strictly implement the principle of "Four Sets". 3. Disease Prevention Australia's silver carp is more resistant to disease than ordinary fish, but routine preventive work must also be carried out on a regular basis. Spring and summer seasons are the prevalent seasons of parasites, and anchor head lice are more common. They insist on the application of organic phosphorus 0.3ppm--0.7ppm or quicklime 15ppm every 2 weeks-3 weeks; autumn and winter seasons This is the epidemic season of bacterial disease, insisting on the application of chlorine dioxide 1ppm-3ppm every 3 weeks-4 weeks. 4. During the 4 weeks to 6 weeks prior to the sale of adult fish, 15 kg of quick lime is mixed with water in the pond per acre of water (about 90 cm in depth), and it is sprayed in the pond for about 5 days to 7 days so that the fish can be fully removed. Body odor in the body is listed to maintain good quality.
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