Matters needing attention in winter management of shrimp culture in paddy field

Shrimp (Shrimp), a kind of arthropod living in water, belongs to arthropod crustaceans, including green shrimp, river shrimp, grass shrimp, crayfish, prawn, pipa shrimp, lobster and so on. Shrimp has high nutritional value in dietotherapy and can be used in traditional Chinese medicine.

Modern medical research has confirmed that shrimp has high nutritional value, which can enhance human immunity and sexual function, tonify the kidney and strengthen yang, and resist premature senility. Often eat fresh shrimp (stir-fry, roast, stew), warm wine delivery service, can treat kidney deficiency impotence, cold, body tiredness, waist and knee pain and other diseases. If women have little or no postpartum milk, 500 grams of fresh shrimp meat, crushed, hot service of yellow rice wine, 3 times a day for several days, can play a role in promoting lactation. Shrimp skin has a sedative effect and is often used to treat neurasthenia and autonomic nerve disorders. Sea shrimp is a delicious food that can provide nutrition for the brain. Sea shrimps contain three important fatty acids that keep people focused for a long time. Shrimp, crayfish, prawns, contains a lot of vitamin B12. It is also rich in zinc, iodine and selenium, and is low in calories and fat. Note: those with high cholesterol and high cholesterol should not eat too much.

As the temperature drops in winter, shrimp farming requires a lot of attention, especially for shrimp farmers in rice fields, they must pay attention to the following points:

First, reinforcement: because shrimp seedlings have to dig holes everywhere after they come to the new environment, if the ridge of the field is too narrow, it is easy to be "holed through the wall" by lobsters, resulting in shrimp seedlings escaping and water leakage in paddy fields. When the water level drops, other lobsters have to dig holes again or run away.

Second, make caves: hit some man-made caves in the mud with wooden sticks or shovels below 15 centimeters on both sides of the field. The cave angle should be small and be "parallel" to the field as far as possible. Once the lobster has a "ready-made" cave, it will not bother itself to save its physical energy and reduce the damage to the ridge of the field.

Third, straw mulching: properly sprinkle some crop straw (such as rice straw) in the rice field, one is to keep warm, the other is to play the role of food, because straw straw rot is a good feed for lobster.

Fourth, feeding: timely and appropriately add nutrition to the lobster, such as wheat bran, corncob, etc., mix the feed with water, knead it into a small ball and put it into the field, with nutrition, it is convenient for the lobster to grow and reproduce.

5. Water conservation: keep the water surface 20 cm above the field surface, sometimes high and sometimes low. Changes in the water surface can easily cause lobster to repeatedly drill holes, transfer holes, or consume physical energy, kill shrimp seedlings, or destroy ridges, and other adverse effects.