CATDOLL : CATDOLL: What is the current status of shrimp farming?

In recent years, due to water pollution, widespread use of pesticides, the decreasing number of aquatic plants in natural waters, and people's cruel fishing and overfishing, the natural production of freshwater shrimp has declined significantly; and with the improvement of living standards, people's demand for freshwater shrimp has increased, causing the price of shrimp to continue to rise. Therefore, the number and output of artificial breeding are also increasing. At present, the output of freshwater shrimp farming is still at a relatively low level. Generally, 1 hectare = 15 mu, 1 mu = 667 square meters. The output is 30 to 50 kilograms. The highest yield per mu can reach more than 90 kilograms, and the lowest yield per mu is only 5 to 10 kilograms. The breeding methods include single breeding, mixed breeding, rice field shrimp breeding and cage shrimp breeding.

Monoculture is mainly based on the cultivation of fresh shrimp, raising double-season shrimp, and marketing them twice a year; this method of raising fresh shrimp generally produces about 75 kg per mu, with an income of 4,000 to 5,000 yuan and a net income of 2,000 to 2,500 yuan per mu. Polyculture is divided into fish and shrimp polyculture, Macrobrachium rosenbergii and fresh shrimp polyculture, and fish, shrimp and crab polyculture; fish and shrimp polyculture includes fish pond polyculture of fresh shrimp, fish pond polyculture of fresh shrimp, and shrimp pond polyculture of summer flower slices, and generally produces about 10 to 50 kg of fresh shrimp per mu. Macrobrachium rosenbergii and fresh shrimp polyculture are generally first released with Macrobrachium rosenbergii fry, and the yield of fresh shrimp per mu is about 25 kg. Fresh shrimp is raised in rice fields, and the yield is generally about 10 to 30 kg per mu. Cage refers to the cultivation of fresh shrimp in a fuel-fired shed, which can be raised twice a year, and the yield per mu can reach more than 200 kg.

Due to the wide temperature range suitable for freshwater shrimp, low breeding cost, low investment, low risk, quick results, high economic benefits, four-season availability, and easy capture, aquatic research institutes and breeders are working hard to explore freshwater shrimp breeding technology, while the breeding area and output are also increasing year by year. However, due to the high requirements of freshwater shrimp for water quality and environment and the small size of individual shrimp, the development of freshwater shrimp breeding industry is also restricted to a certain extent.

In recent years, due to water pollution, widespread use of pesticides, the decreasing number of aquatic plants in natural waters and people's excessive fishing, the natural production of shrimp has declined significantly; and with the improvement of living standards, people's demand for shrimp is increasing, causing the price of shrimp to continue to rise.

Therefore, the number and output of artificial breeding are also increasing. At present, the output of shrimp farming is still at a relatively low level, generally 30-50 kg per mu. The highest yield per mu can reach more than 90 kg, and the lowest yield per mu is only 5-10 kg. There are several breeding methods, such as monoculture, mixed culture, shrimp farming in rice fields and shrimp farming in cages. Monoculture is mainly based on the cultivation of shrimp, raising double-season shrimps, and putting them on the market twice a year; using this method to raise shrimp, the average yield per mu is about 75 kg, the income is 4,000-5,000 yuan, and the net income per mu is 2,000-2,500 yuan.

Mixed culture includes fish and shrimp, Macrobrachium rosenbergii and freshwater shrimp, and fish, shrimp and crab. Fish and shrimp mixed culture includes freshwater shrimp in fish ponds, freshwater shrimp in adult ponds, summer flower slices in freshwater shrimp ponds, etc., and the average yield of freshwater shrimp is about 10 to 50 kg per mu. Macrobrachium rosenbergii and freshwater shrimp are mixed cultured, and Macrobrachium rosenbergii fry are usually released first, and the yield of freshwater shrimp is about 25 kg per mu. Freshwater shrimp is raised in rice fields, and the average yield per mu is about 10 to 30 kg.

Cage-raised shrimp can be raised twice a year, with an output of more than 200 kg per mu. Due to the wide range of suitable temperatures for shrimp, low breeding costs, low investment, low risk, quick results, high economic benefits, four-season availability, and easy capture, aquatic research institutes and farmers are working hard to explore shrimp breeding technology, and the breeding area and output are also increasing year by year. However, due to the high requirements of shrimp for water quality and environment and the small size of individual shrimp, the development of shrimp farming is also restricted to a certain extent.

This article is from: China Agricultural Press "China Agricultural Development Report"