The method of river shrimp culture, the water quality is the most important, timely increase oxygen and actively disinfect.
Select a place with sufficient and clear water source to build a pond with an area of 3 mu, a water depth of about 1.2-1.5 m, an appropriate amount of aquatic plants around the pond to provide shade habitat for river shrimp, and an anti-escape facility at the outlet of the pond. Disinfect and fertilize the pond before releasing seedlings, the desalinated shrimp will be put into the jin pond in late May, and the animal and plant feed will be fed reasonably, and the pond will be patrolled every day. The water quality was monitored, the water was added and changed in time, and the rotation began in September.
The method of River Shrimp Culture
1. Pond selection and construction
River shrimp have higher requirements for water quality, and it is best to cultivate river shrimp in places where the water source is sufficient and there is no pollution. The pond is suitable for sandy and silty soil, the pond area is controlled at about 3 mu, and the water depth is about 1.2 to 1.5 meters. Plant an appropriate amount of water plants around the pond to provide shade and concealment for river shrimps. The inlet and outlet of the pond is equipped with a 2.5 cm dense net to prevent the shrimp from escaping.
2. Disinfect fertilizer and water
One month before the shrimp fry is put into the pond, the water in the pond should be dried and a certain proportion of quicklime should be sprinkled into the pond for disinfection. seven days before the shrimp fry is put into the pond, the shrimp fry should be filtered with 60-80 mesh silk mesh, and 30 cm water should be injected into the pond. then apply base fertilizer or 5 kg / mu of urea to the pond at the ratio of 50 kg / mu to promote the breeding and growth of plankton in the pond.
3. Release of shrimp fry
The shrimp seedlings should be released in late May, and the shrimp seedlings should be desalinated before they are released. The appropriate density is 80,000 pieces per mu. In order to ensure the healthy growth of shrimp seedlings, it is best to be equipped with an aerator in the pond.
4. Bait feeding
River shrimp are omnivorous animals, they will feed on zooplankton, algae, copepods, small aquatic insects, organic detritus, filamentous algae, invertebrates and so on. Artificial feeding can be combined with feeding snail clam meat, earthworms, small miscellaneous fish, silkworm pupae and other animal feed to ensure balanced and adequate nutrition.
5. Daily management
In the process of feeding, the water quality is monitored every day to ensure that the water quality is clear and clean. when the temperature is high, change the water frequently, and sprinkle appropriate amount of quicklime into the pond every 15 days for disinfection to promote the shelling and growth of shrimp seedlings. From August to October every year, the climate changes greatly, and the amount of river shrimp in the pond increases sharply, and hypoxia is easy to occur in the pond. It is necessary to turn on the aerator in time to ensure the healthy growth of river shrimp.
6. Timely fishing
The shrimp in the pond can be caught by rotation in September every year, and the commercial shrimp with a size of more than 4.5 cm can be caught and sold on the market, while the smaller shrimp can be retained and continue to grow.
Nutritional value and efficacy of River Shrimp
1. River shrimp has high nutritional value and is rich in magnesium, which can regulate the human heart, protect the cardiovascular system, reduce the content of cholesterol in the blood, prevent and cure arteriosclerosis, and dilate the coronary artery. it has a certain preventive effect on hypertension and myocardial infarction.
2. River shrimp has the effect of tonifying kidney and strengthening yang, resisting drought and aging, and has a certain therapeutic effect on kidney deficiency and impotence, fear of cold, body tiredness, waist and knee pain and so on.
3. The skin of river shrimp has a sedative effect and has a therapeutic effect on neurasthenia, autonomic nerve dysfunction and other diseases.
4. After grinding 500g fresh shrimp meat and taking it with yellow rice wine, three times a day, it has the effect of promoting milk and can treat women with little or no milk after delivery.
5. River shrimp contain astaxanthin, which can effectively eliminate jet lag caused by jet lag.
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The breeding technology of free-range native chicken should strengthen the management and improve the laying rate and growth rate.
Venue: choose woodland or orchard to facilitate natural food intake. Chicken vaccine: choose high-quality egg-laying and meat-type chicken vaccines and be vaccinated on time. Improve the laying rate: supplement calcium and protein to improve the laying rate. Increase the growth rate: feed the right amount
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What do shrimp eat? polyphagous, with lots of food to feed
Shrimp feed on a variety of food habits. In natural waters, they mainly feed on all kinds of benthic invertebrates, aquatic animal carcasses, organic debris and plant debris. In artificial culture, they are mainly fed with bean curd residue, distiller's grains, rice, silkworm pupa, snail and wheat
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