Breeding techniques of Freshwater Green Shrimp

A kind of freshwater shrimp, the nutritional value of freshwater shrimp is very high. Freshwater prawns grow very fast, and individuals are larger than ordinary shrimps. Freshwater green shrimp has fast reproduction speed and tenacious vitality. Freshwater green shrimp mainly lives in freshwater lakes in China. Prawns are delicious and nutritious, so more and more people will buy freshwater prawns in the future.

Culture techniques of freshwater green shrimp

1. Pond conditions: sufficient water source, fresh water quality, no pollution, convenient entry and drainage, with an area of 2000,000m2 and a water depth of 1mi 1.5m. High-yield shrimp ponds should be equipped with aerators, and some submerged plants should be planted in the ponds, which generally do not exceed 1 of the area of the ponds.

2. Pond disinfection: general disinfection drugs include quicklime, bleach, Croton and so on. After the medicine disappears completely, shrimp culture can be released. Water injection fertilization: 0.5 meters of water was injected one week before seedling release, and then fertilized according to the pond water to increase the palatable bait of young shrimp, that is, plankton.

3. Shrimp fry stocking: green prawns are cultured in the south, two crops a year, and one crop a year in the north. For those who raise one crop a year, the release time is from May to June, and the output can reach 100kg when 667 square meters of shrimp are put in 2MUR 3kg, or 10-150000 larvae.

4. Bait: green shrimp is omnivorous and has a wide diet, but it is also selective. Plant feed prefers bean cake, peanut cake, wheat bran, rice bran; animal feed prefers earthworms, spiroclams, small fish and shrimp, fish meal, flour, silkworm pupa and so on.

Propagation techniques of Freshwater Shrimp seedlings

1, the body environment water surface must have the water floating lotus (accounts for 1 stroke 3), the underwater had better have the water plant, and has the concealment cave, increases the shrimp seedling molting attachment, also facilitates through the water floating lotus seedling washing inspection to grasp the emergence time and the shrimp growth condition.

2. Fences and filters are added to the water inlet to prevent enemy organisms from entering the pond, to prevent frogs from entering the pond to lay eggs, and to prevent tadpoles from eating shrimp seedlings. At the same time, it is necessary to prevent parent shrimp from clinging to and escaping.

3. Strengthen the inspection and insist on checking the emergence of the larvae sooner or later. When the larvae are free from the mother, catch the parent shrimp in time and return to the parent shrimp pond for re-cultivation, so as to minimize the stocktaking through the pond, and the operation should be especially careful to avoid affecting the parent shrimp holding eggs and the newly hatched young shrimp.

4. Ensure timely cultivation of rotifers and other small zooplankton to feed the newly hatched shrimp. It is estimated that 3-5 days before emergence, a small amount of small zooplankton will be caught from the special feed pond into the shrimp seedling pond.

What kind of shrimp is green shrimp?

The main results are as follows: 1. Macrobrachium rosenbergii, the scientific name of Macrobrachium rosenbergii, is mainly distributed in the freshwater waters of China and Japan, with the advantages of high fecundity, strong adaptability, wide eating habits, delicious meat and so on.

2. Green shrimp is one of the freshwater shrimps of the crustacean subphylum Crustacea, Arthropoda, which belongs to the animal kingdom. It has the advantages of fast growth, large size, fast reproduction and strong vitality, and is widely distributed in freshwater lakes in China. Green prawns like to live in shallow water areas along rivers, lakes, ponds, ditches or slow water plants, dormant in the shadows during the day, active at night, and often climb on the bottom of the water, water plants and other objects.

3. It is an omnivorous aquatic animal, partial to animal feed, and the optimum water temperature for growth is 18-30 ℃. It enters the overwintering period when the water temperature drops to 4 ℃, and strengthens its vitality when the water temperature rises to more than 10 ℃. It likes to live in slow-flowing places full of aquatic plants, and the water depth varies from 1-2 meters to 6-7 meters. Backlit, hiding in the dark during the day, coming out at night.

What's the difference between white shrimp and green shrimp?

1. White shrimp is the main species of sea shrimp, and Macrobrachium rosenbergii is the main species of river shrimp. They all belong to the family Macrobrachium, and their shapes are very similar, but their taste and texture are quite different, so the market price is also quite different.

2. White shrimp, also known as Shao Shrimp, River bald Shrimp and Spring Shrimp, is covered with a carapace, and the second carapace of the abdomen covers the outside of the first section of the belly nail. It has two short fine whiskers, the body is white and transparent, there are small blue or red spots, and the shell is very thin, but it is relatively hard. The shrimp body is slightly flattened on the side, and the shell ridge is slightly edged.

The most suitable season for eating freshwater prawns is summer, and it is already summer time, so if you have conditions at home, you can buy some freshwater shrimp to eat. Of course, more and more people are raising freshwater prawns.