Australian freshwater lobster is native to the tropical areas of Australia, has a faster growth rate, generally 6-12 months of age to reach sexual maturity. Sexually mature Australian freshwater lobster in the water temperature of 21 ℃ or more, in the pond will naturally reproduce. Australian freshwater lobster reproduction time is long, spawning and fertilization, its eggs by the mother with eggs hatch, Australian freshwater lobster can spawn 2-3 times a year.
Shrimp fry cultivation should pay attention to a few points: ① cultivation pool conditions: for ease of management, the cultivation pool is generally 50-300 square meters of cement pool, water depth of 1m, the requirements of easy access to drainage. At the same time in the bottom of the pool and the surface of the water to place a hidden object, accounting for the bottom of the pool and the surface of the water 1/4-1/3, in order to increase the effective habitat area of the shrimp fry. ② stocking density: in the first four weeks of larval cultivation, cultivation pool stocking density of no more than 1000 tails / square meter is appropriate, appropriate thinning and timely sub-nutrient is conducive to improving the survival rate. ③ bait feeding: the first three days of the nursery, available steamed eggs + fish slurry four sides of the splash feeding shrimp, and gradually replaced with crude protein feeding. Shrimp fry daily baiting rate of 3-5 times / day. And it should be increased or decreased appropriately according to the water temperature, feeding, growth. Avoid over baiting, there can not be leftover bait and waste deposits in the water. ④ Water quality control: the water quality is required to be fresh, slightly transparent, preferably with a bit of slightly flowing water. Timely clean up the pollution.
Adult shrimp farming pay attention to a few points: ① pond conditions: ponds used for Australian freshwater lobster culture has a good intake and drainage system and oxygenation system, no leakage, and to build a good anti-escape facilities. Stocking must be cleared before stocking, so as to avoid enemies and pathogens remain in the pond, the same way with the general fish pond. Australian freshwater lobster prefer shade and fear of light, good at climbing and climbing to escape, the requirements of aquatic plants on the water body (about 1/3 of the water surface), the bottom of the pond planting water plants (Verticillium nigrum, etc.), at the same time in the bottom of the pond can be set up in bamboo tubes or other similar objects for its burrowing. ② shrimp fry put: to be 7-10 days after the disappearance of the toxicity of lime water, water quality can be released after normal. But pay attention not to mix carnivorous fish and other predatory fish, so as not to affect the growth of crayfish. ③ water quality management: under normal circumstances, water quality management is to ensure that the shrimp pond water is sufficient dissolved oxygen, to ensure that the water quality is fresh, good, regular sprinkling of lime water hair to improve water quality, increase calcium, favorable shrimp shelling, improve the survival rate. ④ baiting management: mainly feed fish and shrimp with bait, feeding to take a fixed point with the poolside splashing combination. Due to the Australian freshwater lobster for omnivorous carrion diet, and therefore appropriate increase in plant feed feeding is necessary. ⑤ catch: crayfish fishing methods are shrimp cage trapping and dry pond fishing two kinds. When the water temperature drops to below 18 ℃, not ready to overwinter the adult shrimp pond can be dry pond harvesting, as long as the pond water is drained, and then down the pond shrimp can be collected.
Breeding process should pay attention to shrimp disease control: Australian freshwater lobster susceptible to a "crayfish plague" shrimp disease, this disease is caused by a fungal infection. As long as the shrimp fry stocking and fishing water temperature control above 21 ℃, crayfish will not get sick.