Rossian shrimp is available all year round. Roche Shrimp Supermarket sells them all year round. Shrimp rosenbergii, also known as Macrobrachium rosenbergii and freshwater long-armed prawn, has the advantages of fast growth, large size, wide feeding habits, short growth cycle, and easy raising. It is an ideal breeding species and is rich in nutrients. The edible part contains Protein 20.5%. Every July and August is the peak season for Macrobrachium rosenbergii, and the price of Macrobrachium rosenbergii will vary in different regions. The price of Macrobrachium rosenbergii depends on its quality, size and whether it is fresh. Generally, it is more than thirty pounds per pound, and the more expensive ones are forty to fifty-one pounds. The yield of cultured Macrobrachium rosenbergii is relatively high. Under normal circumstances, the yield per 667 square meters is 100 to 160 kilograms. According to the current market price, the income per 667 square meters is more than 6,000 yuan.