Culture techniques of Green Shrimp in High efficiency Paddy Field

Shrimp culture in paddy field can not only improve the ecological environment of paddy field, but also increase production and income. It is also a very promising culture method. Its main operating technical points are:

Select the field and open the shrimp ditch

Fresh water quality and stable water level are required in rice fields for shrimp cultivation. For this reason, it is necessary to select fields close to water sources, convenient for water intake and drainage, and better soil quality. After turning and harrowing, shrimp ditches 2 meters wide and 1 meter deep can be excavated at one end of the field or shrimp ditches 1 meter wide and 0.8 meters deep can be opened in the shape of fields around and in the middle of the field. Water intake and drainage system shall be built, water shall be poured well, and wild miscellaneous fish shall be strictly prevented from mixing.

Timely release seeds to improve survival rate

A week after seedling planting, young shrimps begin to be released. Usually, young shrimps artificially cultivated in the same year are used for stocking. The specification is 2000-5000/kg, and 10,000 - 15,000 shrimps can be put per mu. Select rainy days or sunny morning stocking, to be divided into points, so that the whole water area has young shrimp distribution, to avoid excessive concentration of young shrimp due to hypoxia caused death. When stocking, the movement should be agile to improve the survival rate of young shrimp stocking.

Scientific feeding, strengthening management

Shrimp stocking immediately after feeding, generally available bran, bean cake, or fish (shrimp) with granular bait feeding, but also appropriate feeding some snails, shellfish meat, fish and other animal bait. Feed twice a day, mainly in the evening, daily feeding amount can be controlled according to 2%-4% of the weight of shrimp in the field, according to the season, weather and shrimp feeding situation, reasonable adjustment, so that shrimp eat well, promote growth.

It is very important to do a good job in the management of shrimp culture in paddy fields. First of all, we must insist on regular water change to keep the water in the shrimp ditch fresh, especially in the summer and autumn high temperature season, and keep the water level in the shrimp ditch stable even when the rice is placed in the field, so as to provide a good ecological environment for the growth of shrimp. Second, avoid using pesticides as much as possible. If you want to use them, you should choose pesticides with low toxicity and high efficiency. Pay attention to the use method and do not kill shrimp. Third, attention should be paid to eliminating enemies. Frogs, snakes, water rats, etc. will devour green shrimps. Effective methods should be taken to eliminate them in time.

As long as we adhere to local conditions, strictly follow technical norms and strengthen breeding management, we can get a good yield of 20-30 kg by raising shrimp in rice fields.