Australia's freshwater lobster, also known as red crayfish, is native to Australia and is a large-scale, high-quality freshwater shrimp species that has been introduced into breeding and breeding in recent years in China. It is also one of the world's most valuable economic shrimp species and is currently being promoted for culture. Australian freshwater lobsters have the characteristics of strong adaptability, miscellaneous food, rapid growth, and can survive at 3°C ​​to 35°C water temperature, with good resistance to dry transport, good meat quality, and high economic value. When a number of units in Guangdong are raised, the maximum output per acre can reach 411 kilograms and the economic benefits are good. According to Australia's breeding technology experience and some trials, the specific farming techniques and methods of freshwater lobster in Australia are presented below for reference by farmers. 1. Aquaculture ponds require that the aquaculture pond should be selected in a place with good ventilation and no pollution. The specifications are 5 mu to 10 mu, the water depth is more than 1.5 meters, the bottom of sand and mud is flat, and the slope of the pond is 25 to 30. It is convenient for entering. Drainage conditions and protection against theft. Put a certain number of shelters such as stones and tiles in the pool, or put more than 300 old tires per acre to serve as a shelter for shrimps. Second, shrimps can be stocked in stockings starting in April. The body length of 3 cm to 5 cm can be stocked from 5000 to 6000 fish per acre. Small shrimp can be appropriately increased. However, the shrimps are strongly bullied and small, so the specifications of the stocks that are stocked in the same pond need to be neat. When the seedlings are released, it is necessary to avoid excessive differences in water temperature. It is advisable to go to the pool at dusk or at dawn. Put a small amount of water in the container and slowly adjust the temperature of the water in the container until the temperature of the water in the container approaches the temperature of the pool water, and then gently put the shrimp into the pool. Third, do a good job in feeding According to the general experience, the amount of daily feeding should be sufficient to eat, eat, and leave no residual bait. General shrimp according to the weight of 20% to 25%, in the shrimp by 15% to 20%, prawn by 5% to 10% bait. Feed twice a day, once in the morning and at night, and 70% to 80% of the feed for the whole day at night. The feed is placed on the shallow side of the pond. Too little feeding will inhibit the growth of shrimp, but too much will increase the cost and cause environmental deterioration in the pool, which is unfavorable to the growth and shelling of shrimp. The feed can use general shrimp feed, shrimp feed, and small trash fish. Fourth, strengthen the feeding and management In the daily management, in addition to the regular observation of shrimp pond feeding, activities and growth shelling, but also pay attention to water quality and pool bottom environment. When the dissolved oxygen content in the water is very low, the water quality deteriorates, or when thunderstorms are hot, continuous overcast and other bad weather, it is necessary to reduce the bait or stop the bait. When the weather is too cold or too hot, in order to prevent the extreme temperature from occurring, the pool water may be properly deepened to stabilize the bottom water temperature. In breeding, attention should be paid to preventing diseases, removing gulls and predators, and wild fish such as cockroaches, clams and cockroaches. V. Harvesting and Catching The shrimp grows fast. The stocking can be harvested and listed in the same year. The catching form can be captured by dry ponds or fences. If the aquaculture production is high and a large number of products are listed in batches in stages, nets such as trawls or nets may be used for fishing and trapping. At the time of arrest, the effect is better when the night is dark.
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