Is the prawn freshwater or seawater? How to tell if the dead prawn has gone bad?

The rosenbergii shrimp is also called white-foot shrimp, swamp shrimp, etc. It is large in size, up to 40 cm in size, and rich in protein, including high levels of animal protein and plant protein. The rosenbergii shrimp head contains shrimp paste, which tastes extremely delicious and is very suitable for daily consumption. Is the rosenbergii shrimp freshwater or seawater? Are you familiar with it?

Contents of this article

1. Is the lobster freshwater or seawater?

2. How to judge whether the dead prawns have gone bad?

3. How to store live prawns until the next day

Is the prawn freshwater or saltwater?

Macrobrachium rosenbergii is a freshwater shrimp.

Macrobrachium rosenbergii, also known as white-legged shrimp, swamp shrimp, etc., is huge in size, up to 40 cm in length and 600 grams in weight. It is mainly distributed in freshwater waters in tropical regions of the Indian Ocean and the Pacific Ocean. It is rich in protein, of which animal protein accounts for about 20% and plant protein accounts for 17~18%; and the head of Macrobrachium rosenbergii contains shrimp paste, which tastes extremely delicious and is very suitable for daily consumption.

How to judge whether the dead prawns have gone bad

The appearance of fresh, live Macrobrachium rosenbergii is bluish-gray but slightly transparent, and the surface is shiny. However, if it is a dead and spoiled Macrobrachium rosenbergii, sticky mucus will appear on the surface of the shell.

The smell of live shrimps is like the salty smell of sea water, which is generally not unpleasant. However, spoiled Macrobrachium rosenbergii will emit unpleasant pungent smells such as stench, sourness, and decay.

Good Macrobrachium rosenbergii tastes delicious after being cooked, and the meat is elastic and tastes good. However, the meat of spoiled ones tastes loose after being cooked, and the delicious taste of the shrimp is lighter or even absent.

How to store live prawns until the next day

After cutting off the antennae and shrimp claws of the Macrobrachium rosenbergii, place them neatly in a fresh-keeping box and cover the box to ensure there are no gaps. Then store them in the refrigerator and freeze them. When eating, just pry the Macrobrachium rosenbergii off with a knife.

Pour the live Macrobrachium rosenbergii you bought into a basin, then add clean water to the basin to keep the shrimp body moist and prolong its survival time, but be careful not to cover the shrimp head.