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River shrimp farming costs and profits
Farming Technology

The market demand for river shrimp is increasing day by day, selling well and expensive. In the bass, guppies, eels, snappers, sturgeon and many other famous fish prices have fallen sharply, river shrimp prices are still very firm.

Guangzhou Huangsha aquatic trading market, river shrimp, the highest sales price per kilogram of 52 yuan -56 yuan. As the market demand for more, and the amount of wild resources is limited, coupled with the pollution of river waters and the amount of fishing is decreasing, so the development of artificial farming prospects. Some connoisseurs believe that, as long as feeding properly, per mu of shrimp farming is 6 times the benefits of fish farming - 8 times, or even more. Don't understand, aquaculture shrimp is not complicated, general water depth of 1 meter - 1.5 meters of the bottom of the pond with sand and mud can be used as a river shrimp ponds, ponds should be close to the water source, in order to drain in time to increase oxygen. River shrimp is omnivorous, it is strong fertility, fast growth, but also with silver carp, pangasius and other non-carnivorous fish mixing, feeding well, the economic benefits can be considerable.

What morphological structures of the river shrimp are adapted to its aquatic environment:

Flaky swimmer's foot, fan-shaped tail, feathery gills, slender legs and feet, and particularly high curvature of the eye.

Kiwi shrimp is better, raising kiwi shrimp

Kiwi shrimp is commonly known as sand shrimp, belongs to the wide temperature, wide salinity shrimp. Temperature range 10 ~ 37 ℃, optimal temperature 17 ~ 32 ℃, low oxygen tolerance than the shrimp. General output of up to 80 ~ 150 kilograms per mu, its breeding attention to the following matters:

One, pond conditions and cleanup. Choose an area of 3 to 5 acres, water depth of 1.5 to 2.5 meters, fresh water sources, pollution-free, sandy bottom of freshwater ponds or shrimp ponds are appropriate.

Two, fertilization bait. Shrimp fry 1 week before stocking, with 60 ~ 80 mesh sieve silk screen filter, into the water 30 cm, mu Shi base fertilizer (fermented animal manure) 50 kilograms or 5 kilograms of urea in order to cultivate the basic bait.

Three, shrimp fry stocking. Generally in late May when the water temperature stabilized at 18 ~ 20 ℃ can be stocked shrimp seedlings. Shrimp seedlings need to be more than a week of desalination, specific gravity of 1.003 or less before stocking. Generally mu put 0.7 ~ 1.0 cm shrimp seedlings 3 ~ 40,000, 0.7 cm seedlings need to be temporary. Shrimp ponds can be mixed 10-20 cm chub fish species 80-150 tail.

Four, bait river shrimp (5) feeding. Shrimp fry in the pond within 1 month basically do not have to feed with bait, mainly relying on plankton in the pond for food. 1 month after feeding with bait, supplemented by fresh fish, shellfish, etc., baiting rate is generally 3% to 5% of the weight of the shrimp. 7 ~ September can be an appropriate increase in the amount of bait to the principle of no residual bait, the number of times the bait for the 2 ~ 3 times a day, daytime casting accounted for 1/3, evening 2/3.

Fifth, the water control and disease prevention. Shrimp fry stocked 10 days later, began to gradually add water, adding 10 to 15 centimeters of water per week. High-temperature season every 2 to 3 days to change the water 20 to 30 centimeters. Every half month or so, mu with quicklime 5 ~ 10 kg slurry sprinkled throughout the pool, both to improve water quality and substrate, but also sterilization to promote the growth of shelling. At the same time, 15 ~ 20 days, should be mixed with 1 ‰ ~ 3 ‰ garlic bait, even cast 3 ~ 5 days.

Six, harvesting. General culture 80 ~ 100 days, shrimp body length of 7 ~ 10 cm can be based on market conditions to be caught and sold. Available netting or water harvesting, away from the water for 36 hours dry method of live transportation, the survival rate of up to 90%.