Why did the price of prawns last year was more than 8 yuan, but this year it fell to more than 4 yuan, and farmers said they would not raise them if they didn't raise them?

Nowadays, people's living standards have improved, and they have more choices in food choices. In particular, parents are willing to provide their children with better conditions for their development and growth. If they eat well, they will have nutrition. Everyone knows that shrimp has a high calcium content and is very popular in the market. Many parents like to buy it for their children. However, in recent years, there has been an exotic shrimp species that looks like prawns. It was introduced to China only 3 years ago, and the farming area is increasing year by year. The price is not cheap. Last year, it sold for more than 8 yuan a kilogram, but this year it dropped by half. Some farmers even said that if they don't raise it, they won't raise it. It is really puzzling.

The shrimp shown in the picture is Penaeus vannamei, also known as white-limbed shrimp. Penaeus vannamei is native to the tropical waters along the Pacific coast of the western United States. It is a tropical shrimp with wide temperature and salinity. It has the characteristics of strong adaptability, fast growth, strong disease resistance and short breeding period, and is called one of the three excellent species with the highest aquaculture yield in the world.

As you can see, Penaeus vannamei is very similar to Chinese prawns, but its size is bigger, and the longest adult can reach 24 cm. Penaeus vannamei has a thin shell, a very high meat yield, delicious meat and rich nutrition. Therefore, it is very popular in the market and has a great demand after being introduced to China, so many farmers have started to breed Penaeus vannamei.

In recent years, the market of Penaeus vannamei is very good, and its price has been increasing at a high level, but this year it suddenly fell to more than 4 yuan a kilogram, almost at half price. Perhaps because of the market of Penaeus vannamei, many farmers have reduced the breeding area of Penaeus vannamei.

what caused the market to change so quickly? It is understood that a very important factor is that the bad weather last year led to a serious reduction in production in South America, and farmers increased the breeding area of Penaeus vannamei this year. However, this year's weather is better and the rainfall is less. These factors are not conducive to the growth of Penaeus vannamei, so this year's output will be more, and the price will not be sold. Some people have also lost money, so they have given up farming.