How fast and efficient high-yield farming grass carp ?

In the past conventional breeding carp polyculture are mainly three years to develop, the high cost of funds used a long time. The author summarizes the promotion of a pollution-free grass yield fast and efficient farming techniques, are presented below.
1, Pond Requirements: 10-20 acres suitable pond area, depth 2-2.5 m, silt thickness of not more than 20 cm. Per 10 acres pond supporting power of 3 kW aerators and automatic feeding machine of a desk.
2, pond clearing: Winter draining of water, freeze drying more than 20 days. 15 days ago fish stocking, water 10-20 cm, 150 kg of lime per acre clear pond disinfection.
3, fish stocking: before and after the Spring Festival, put specifications for 200-250 grams per acre grass seed / tail 300, specifications for 15-20 tail / kg of carp species 300, Specifications for 5-6 fish / kg of silver carp 50 species, bighead carp species 10. Before fish stocking with 5% salt water immersion disinfection 5-10 minutes.
4, feed feeding: feeding pellets to the main feed protein content of 28-32%, the secondary cast green feed. Feed fed to follow "four four to see" principle "after former coarse fine" and, generally fed two times a day, to within two hours after eating, grass carp feeding eight full appropriate. March-June to ration protein content of 28% of the pellets based, daily feeding rate of 3%, moderate fed green fodder; July to September, the control pellet feed ration, daily feeding rate of 1.5% so, pellet feed protein content of 28%, and increase the amount of green fodder fed to control fish disease; October-November fed protein content of 32% of the pellets. After a period of continuous feeding pellets should stop feeding pellets one week, feeding unprocessed feed during the interval. Usually pay attention to add the appropriate amount of vitamins in feed and other drugs, to avoid the risk of grass carp hepatobiliary syndrome and other diseases caused by a large number of deaths.
5, Water Quality Management: Proper use of aerators, sunny windless weather from June to October, 1-3 pm every boot aerobics two hours, morning aerobics timely; consecutive cloudy days should be ahead of oxygen. Timely to raise new water pond, to take "a small row of small forward, changing the water several times" approach to gradually regulate water quality. June to September, filling the new water every 3-5 days a times, each about 10 cm of water every 15-20 days per acre with water one meter depth of 10-20 kg of lime slurry Quanchiposa 1 .
6, disease control: the use of "coarse ago after fine, fine green combination" approach feeding, control grass hepatobiliary syndrome occur. Common carp have red skin disease, gill disease, enteritis disease, in general, the treatment combination of oral spilled outside, outside throwing mainly in bleaching powder, chlorine dioxide disinfectant based, once every three days; Oral "Three gluten "bait better, per 50 kilograms of fish reuse three rhubarb (Rheum 50%, Cork 30%, skullcap 20%, after crushed Powder mix) after 0.3 kilograms of flour paste mixed ration feed mix , 3-5 days.
7, timely harvest: timely listing of the large size of adult fish farming is an important measure yielding grass harvesting, the main purpose is to reduce the load of fish pond water volume, and promote rapid growth of the latter part of the fish. Usually ships since the end of July to catch a second, lower water temperatures in the morning harvesting.

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