Common freshwater shrimp varieties and prices, and how they differ from sea shrimp?
Shrimp is a delicious dish on the dining table, and the price is usually not low, but many people make a point of ordering this dish at seafood restaurants. Today I want to talk about freshwater shrimp, its several common varieties, and the prices of the different varieties. By the way, I will also talk about the difference between freshwater shrimp and sea shrimp.
1. What common varieties of freshwater shrimp are there?
The varieties more commonly seen on the market are mostly these few: grass shrimp, white shrimp, and giant freshwater prawn (Macrobrachium rosenbergii).
2. Prices of common freshwater shrimp
Grass shrimp in Minquan County, Shangqiu City, Henan, 33 yuan/jin; white shrimp in Donggang City, Dandong City, Liaoning, 30 yuan/jin; giant freshwater prawn in Enshi City, Enshi Tujia and Miao Autonomous Prefecture, Hubei, 25 yuan/jin; grass shrimp in Changning County, Yibin City, Sichuan, 23.33 yuan/jin; giant freshwater prawn in Xiuying District, Haikou City, Hainan, 55 yuan/jin; giant freshwater prawn in Meilan District, Haikou City, Hainan, 50 yuan/jin; grass shrimp in Liwan District, Guangzhou City, Guangdong, 30 yuan/jin. (These prices are for reference only; the actual local prices should prevail.)
3. Differences between sea shrimp and freshwater shrimp
1. Sea shrimp mainly consist of the white shrimp variety, while freshwater shrimp mainly consist of the prawn (Macrobrachium) variety. They both belong to the family Palaemonidae and look very similar, but their taste and texture are quite different, so their market prices also differ considerably.
2. White shrimp, also known as huangxia, jiangtu, and yingchun shrimp, has its whole body covered with a carapace; the second segment of the abdominal carapace covers the outside of the first abdominal segment. It has two relatively short thin antennae, and its body is white and translucent with a few small blue or red spots. The shell is very thin but relatively hard, and the shrimp body is slightly laterally flattened, with the shell ridge slightly forming an edge.
3. The prawn (Macrobrachium), also known as qingxia and chaixia, also has its whole body covered with a carapace, but its walking legs have pincers at the front, shaped like pliers. In particular, the second pair of walking legs is very thick and large; its length exceeds more than 2 times the body length, and it is strong and powerful, and can be used to attack and defend against enemies. The shrimp body is blue-green with brown markings, and the shell is very thin and relatively soft. The shrimp body is cylindrical, and the shell ridge is rounded. The shrimp meat is semi-transparent jade-colored; after cooking, the double white shrimp is crystal bright, and the taste is more elastic, smooth, and plump and tender.
4. Feeding methods for freshwater shrimp
1. According to the nutritional needs of freshwater shrimp at the same growth and development stages, do a good job of combining and feeding feed. In the juvenile shrimp and young shrimp stages, freshwater shrimp feed on rotifers, cladocerans, copepods, and aquatic insect larvae, among others; in the adult shrimp stage, they also eat animal feed and plant feed. After shrimp fry and shrimp seed are stocked, appropriate additional application of fertilizer is needed to fertilize the water quality. In the rapid growth stage of freshwater shrimp from August to October, feed more bran, soybean cake, and green feed, and appropriately feed animal feed. From November to December, before freshwater shrimp overwinter, mainly feed animal feed.
2. Feed according to the living habits and feeding characteristics of freshwater shrimp. Freshwater shrimp are mostly active and forage at night, and have the habit of competing for food and being greedy for food. Feeding feed should adhere to feeding once each in the morning and afternoon every day, mainly the afternoon feeding, accounting for 70% of the whole day's feeding amount; adopt the feeding method of fixed quality, fixed quantity, and fixed time, feed enough and evenly, ensure every shrimp eats its fill, and avoid competing with each other for food.
3. Feed reasonably according to weather, water quality changes, and shrimp activity and feeding conditions. The suitable water temperature for freshwater shrimp growth is 20-32°C. From August to October, freshwater shrimp have a large food intake, and the daily feeding amount can be arranged at 6%-10% of the shrimp body weight in the pond; dry feed or compound feed should be calculated at 2%-4%, and appropriately increased or decreased according to weather, water quality conditions, and shrimp activity and foraging conditions. During continuous rainy weather or when the water quality is too dense, feed less; when the weather is clear and fine, feed appropriately more; when a large number of shrimp molt, feed less, and after molting, feed more; in the season when shrimp become diseased, feed less, and when growth is normal, feed more. It is necessary both to let the shrimp eat their fill and eat well, and to reduce waste and improve feed utilization.
Alright, that is all for today's introduction of the related content about freshwater shrimp. Different varieties of freshwater shrimp will have some differences in price. If you cannot distinguish them from sea shrimp, you can learn the distinguishing methods in this article!
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