How often do Penaeus vannamei seed shrimp spawn

Take the drug once a day or two days, and once a week to ten days without medicine. Therefore, shrimp seedlings are expensive and cheap.

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Summary. The female gads of Penaeus vannamei can spawn for many times after maturity, and the quality of seedlings in the early stage is relatively good, the larvae have strong vitality and low deformity rate.

Hello, glad to answer for you. It can lay eggs more than a dozen times, and the quality of the first few lays is at its best.

The female gads of Penaeus vannamei can spawn for many times after maturity, and the quality of seedlings in the early stage is relatively good, the larvae have strong vitality and low deformity rate.

How was the first time.

Good. It's not good to be a few times.

After 5 times. Good.

Tips: Removal of the unilateral eye stalk of Penaeus vannamei shrimp can promote its maturity, generally 1 4 weeks after the removal of the Li Yuan eye stalk, the female shrimp can mature, and the ovaries can also mature again after the collapse of the ovaries. The interval between each two spawns is 2 3 days (only about 50 hours at the beginning of reproduction), and the number of spawns can reach more than a dozen, but 3-4 consecutive spawns should be accompanied by 1 molt.

Shrimp eggs are best sealed (to prevent dehydration of noisy eggs) and stored at low temperature, in addition to putting shrimp eggs in a cool and dry place, put shrimp eggs in a sealed bag and put them in the refrigerator to keep fresh (pay attention to vacuum preservation as much as possible). However, it is necessary to use frozen storage for a long time, and because of the large amount of frozen water, the method is not appropriate, and it is easy to make the shrimp eggs damp, thereby reducing the hatching rate, so it is recommended to put a few bags of food desiccant on the shrimp eggs to prevent moisture, and the shrimp eggs should not touch the water source, which will cause the shrimp eggs to become moldy in the air due to moisture, and the dampness of the shrimp eggs is a reason for the purification of the sinking eggs.

Summary. The average lifespan of Penaeus vannamei shrimp can reach more than 32 months. The adult body of Penaeus vannamei shrimp can reach 24cm, the carapace is thin, the normal body color is light blue-gray, the whole body does not have markings, and the steps and feet are often chalky, so it is called white-limbed shrimp.

The average lifespan of Penaeus vannamei shrimp can reach more than 32 months. The adult body of Penaeus vannamei shrimp can reach 24cm, the carapace is thin, the normal body color is light blue-gray, the whole body does not have porphyry lines, and the steps are often chalky, so it is called white-limbed shrimp acorn.

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Litopenaeus vannamei shrimp, commonly known as white-limbed shrimp or vannamei shrimp, once translated as vannamei shrimp, is a tropical shrimp with wide temperature and high salt temperature. It is mainly found in the tropical waters of the western Pacific coast of the United States, from the Gulf of Mexico to central Peru, and is more concentrated in the waters near Ecuador. The aquaculture area should be fresh in water quality, pollution-free, water, electricity, roads, and postal services, the shrimp pond area is 2668-6670, and the water depth can be injected - 2m.

And equipped with a reservoir and a disinfection tank suitable for the breeding area.

1. Water temperature is an extremely important factor in the living conditions of shrimp, vannamei shrimp is a tropical shrimp species, belongs to ectotherms, especially to high temperature adaptability, its growth temperature is 17-37 °C, the optimal growth temperature is 25-32 °C, and the tolerance limit of high temperature is 43, 5 °C. The ability to adapt to low temperature is poor, and the feeding decreases significantly below 18 °C, stops feeding below 15 °C, and dies below 9 °C.

2. Salinity Penaeus vannamei shrimp is a broad-salt shrimp, which has a wide range of adaptation to the lead group of salinity, and can grow normally in water with salinity of 5%-40%0, and the optimal salinity range is 12%-28%.

<> under the condition of good breeding conditions, the shrimp can be sold after about 3-6 months of cultivation. Because the growth of shrimp is hindered when the water temperature is lower than 18, the water temperature of Zhenglun seepage must reach more than 20 °C before the seedlings can be released.