1, shrimp fry cultivation: for ease of management, cultivation pools are generally 50-300 square meters of cement pools, water storage depth of 1m, requiring easy access to drainage. At the same time in the bottom of the pool and the water surface to place concealment, 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 shrimp fry. 2, pond shrimp culture: for Australian freshwater lobster culture pond area of 1-1.5 acres, pool depth of 1-1.5m, the bottom of the pool has a slight slope, has a good intake and drainage system and oxygenation system, no seepage and leakage, and should be built to prevent escape facilities, must be cleaned out before stocking to avoid The enemy and pathogens remain in the pond.

First, how to breed Australian lobster

1, shrimp fry cultivation

(1) cultivation pool conditions

① In order to facilitate the management of cultivation pools can be set up generally 50-300 square meters of concrete pools, water storage depth of 1m, inlet and outlet must be convenient.

② At the same time, 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 can be, so as to increase the effective habitat area of the shrimp fry.

(2) stocking density

In the first 4 weeks of larval cultivation, the cultivation pool stocking density must not exceed 1,000 tails / square meter, appropriate thinning and timely sub-nutrient can improve the survival rate, the general cultivation of the survival rate of 50% -70% or so.

(3) bait feeding

① 3 days after the start of the nursery, the available steamed eggs + fish slurry splash feeding shrimp, and then gradually replace the crude protein content of 44% -46% of the open bait and brine shrimp feeding.

② shrimp fry daily bait rate of 3-5 times / day, when the baby shrimp grow to more than 2cm can be fed granular bait, bait for the pool of shrimp stocked 15% of the body weight, but also according to the water temperature, feeding, growth, appropriate increase or decrease.

(4) water quality control

① water quality must be fresh, transparency can be slightly larger, and a little bit of running water.

② must avoid excessive baiting, there can not be leftover bait and waste deposits in the water, must be cleaned in a timely manner.

③ When the larvae grow to 3cm and weigh up to about 1 gram, they can be put into the pond for breeding.

2, pond shrimp culture

(1) pond conditions

① Australian lobster pond area is generally 1-1.5 acres, the pond depth of 1-1.5m, the bottom of the pond should be slightly sloping, with a good intake and drainage system and oxygenation system, no seepage, and at the same time also build a good anti-escape facilities.

② before stocking must be cleared, to avoid the enemy and pathogens remain in the pond, the same method and the general fish pond, per mu can use lime 150-300kg dry pond.

③ Australian lobster prefer shade and fear of light, good at climbing and climbing to escape, the water body must have aquatic plants (about 1 / 3 of the water surface), the bottom of the pond should also be planted with aquatic grasses (Rotifolia, etc.), while the bottom of the pond can also be set up in the bamboo tube or other similar objects for its burrowing.

(2) shrimp fry put

① and so 7-10 days lime water toxicity disappeared, the water quality is normal, you can put seedlings.

② general stocking density of 7000-10000 tails / mu, stocking 1 month or so can be mixed with 50-250g / tail chub 60-100 tails / mu.

③ Australian lobster is a benthic crustacean, appropriate mixing of pelagic filter-feeding fish, can improve the growth environment, and these fish are more sensitive to dissolved oxygen in the water, can be used as a pond hypoxia indicator fish.

④ But be careful, must not mix carnivorous fish and other phytophagous fish, so as not to affect the growth of Australian lobster.

(3) water quality management

① Generally under normal circumstances, water quality management is mainly to ensure that the shrimp ponds have sufficient dissolved oxygen, fresh and good water quality.

② You can refill 1/5-1/4 of the new water every day, and then regularly splash lime water to improve water quality and increase calcium, which is conducive to shrimp shelling, improve the survival rate.

(4) baiting management

① Mainly can be fed fish and shrimp with bait, the daily feeding amount of shrimp body weight of 3% -10%.

② feeding is mainly divided into morning and evening twice, because of its feeding habits in the evening and night by the poolside foraging, so evening feeding must account for the total amount of 2 / 3 or so.

③ feeding can take a combination of fixed-point and poolside sprinkling, due to the Australian freshwater lobster for omnivorous scavenging diet, so it is necessary to increase the appropriate plant feed.

④ Pre-breeding can be put in the pool side of some hay, 40kg of grass per month can be fed, and later can be fed soybean, barley and so on.

⑤ The feeding amount must be adjusted according to the water temperature during the whole breeding period. At the beginning, because of the low water temperature, the feeding is weak and the baiting rate is low, so you can feed about 6% of the body weight; in the middle of the period, the water temperature is high and the feeding is strong, so you can feed about 10% of the body weight.

(5) shrimp disease control

① Australian freshwater lobster is susceptible to a ? Crayfish plague? The shrimp disease, this disease is caused by a fungal infection.

② This fungus suitable growth temperature is not higher than 18?C, when the water temperature is higher than 21?C, the growth of the fungus will be suppressed.

③ Therefore, as long as the water temperature is controlled above 21?C when the shrimp fry are stocked and caught, the crayfish will not get sick.

(6) catch

① Australian lobster fishing methods are mainly shrimp cage trapping and dry pond fishing two kinds.

② When the water temperature drops to below 18?C, not ready to overwinter the adult shrimp pond can be dry pond harvesting, as long as the pond water is drained, and then down to the pond to collect shrimp can be, dry pond process must pay attention to the outlet set up in the net collection of shrimp with the water flow down.

③ usually if you need to catch a small amount of fishing, available shrimp cage trapping, shrimp cage is generally woven with netting, mesh size of 2cm or so, the shape of the two kinds of upright and angular cone.

④ Trapping can be baited into the shrimp cage, and then sunk into the pond, instantly collect shrimp cage.

⑤ After about 5-6 months of culture, the shrimp production can reach 70-110kg/mu, with individual specifications up to 70-180g, and up to about 450g.

Second, aquaculture of Australian lobster to pay attention to matters

1, aquaculture of Australian lobster when the pond must be established in the ventilation, sunshine, quiet environment, water abundance, no sources of pollution, drainage and irrigation of the convenient land to build a rectangular area is appropriate for an area of 3-5 acres. It is also necessary to set up water intake and drainage facilities, inlet and outlet should be set up to prevent escape nets, in the pond can be planted around aquatic plants, about covering 1/5 of the water surface can be.

2, shrimp fry stocking time is generally March-May, the water temperature is above 18?C, try to release seedlings in the morning or evening on sunny days. Shrimp fry size of 50px-100px, density of 6000-8000 per mu, the same pool stocking shrimp fry must be uniform specifications. About 3 days after stocking shrimp seedlings can be fed with crushed small mixed fish and minced meat, when the shrimp seedlings grow to 6-7cm, you can use crushed snails, mussels and other plant feed instead.

3, Australian lobster metabolism is good, fast growth, shrimp pond water quality must be kept clean. Weekly can add 15-20cm of water, so that the shrimp pond water quality has enough dissolved oxygen, shrimp pond water transparency must be controlled at about 35cm. Australian lobster has more natural enemies, such as rats, frogs, waterfowl, etc., breeding personnel must be anti-rodent, timely extermination of rats, clearing the pond frogs.