What is the suitable temperature for shrimp seedlings? What is the water temperature of shrimp farmi

Through the design of experimental equipment and experimental methods, a single factor adaptability experiment of shrimp seedlings to light intensity, water temperature, dissolved oxygen content and salinity, as well as a two-factor orthogonal experiment on temperature and salinity, temperature and dissolved oxygen, were carried out with 100 litopenaeus vanamei shrimp fry in each batch of artificially controlled water environment. After the analysis of the experimental data, it was concluded that the shrimp seedlings had strong phototaxis, and the phototropic range of the shrimp seedlings was 130 10601x. The temperature tolerance range of shrimp seedlings is wide, the suitable temperature is 17 23, and the optimal temperature is 20 23. The salt tolerance range of shrimp seedlings was wide, the suitable salt value was 15 0 35, and the optimal value was 24 26. The tolerance oxygen concentration can generally not be less than 4 5 mg L, and the optimal dissolved oxygen range is 6 6 5 mg L or more. In the analysis of variance of the data of the two-way orthogonal experiment, it was found that the effect of temperature on shrimp seedlings was extremely significant, followed by the effect of salinity and dissolved oxygen.

What kind of shrimp do you have there, it shouldn't be a big problem.

No, beyond 2 degrees, the development of shrimp seedlings will be problematic.

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There are many influencing factors, not necessarily --

Mistakes will be made; Just remember it next time.

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Water temperature: The water temperature of stocking Chinese shrimp fry should reach more than 14, and the water temperature of stocking Penaeus vannamei and Penaeus monodon fry should be above 22.

The temperature at which shrimp pond shrimp eat quickly: Relevant studies have shown that juvenile shrimp with about 1 gram grow fastest at 30 °C; And 12 18 grams of prawns, the fastest growing at 27°C. Penaeus vannameiThe minimum temperature for breeding should be above 18 °C.

When the water temperature is below 15 °C, Penaeus vannamei shrimp decreases or stops feeding; lying on the side or dying below 9°C; The high temperature above 35°C greatly affects the feeding and growth of Penaeus vannamei shrimp.

The reason for the slow eating and slow growth of shrimp in the autumn and winter nuclear season.

1. Changes in air temperature and water temperature. The suitable growth temperature of Penaeus vannamei shrimp* is 25-32 degrees, which will cause the vitality of shrimp to deteriorate in a low temperature environment, resulting in slow feeding and slow growth of shrimp.

2. Shrimp seedlings. Be sure to ensure the health of shrimp and shrimp seedlings, some shrimp seedlings have different sizes from the purchase, and even carry pathogenic bacteria, and there will be slow growth and stop growing in the later breeding process.

3. Other factors. Pond stocking density is high, feed quality is late, water quality problems, enteritis, parasites.

and other problems will lead to the phenomenon of slow shrimp eating.

Water temperature: The suitable water temperature for the growth of Penaeus vannamei shrimp is 13 40, and the optimal temperature for growth is 23 30. Stop feeding when the water temperature is lower than 16, and coma occurs when the water temperature is lower than 13 for a long time; When the water temperature rises to 41, all individuals less than 4 cm in length die within 12 hours.

Salinity: The adapted salinity for the growth of Penaeus vannamei shrimp is 2 34, and the optimal salinity for growth is 10 20, which is similar to that of Chinese shrimp. In the case of gradual desalination, Penaeus vannamei can grow in freshwater with a salinity of 2, but with a slight decrease in taste and a relatively low survival rate for long-distance transport.

So if possible, in the 1 to 2 weeks before harvest, the salinity should be gradually increased.

Broodstock are cultivated, matured and spawned

Broodstock for nursery can be caught directly from the pregnant oocytes in the sea area, or the farmed shrimp can be mated and spawned after being cultivated and matured. The mating and spawning of giant river prawn and other true shrimp takes place when the female shrimp matures and molts. Shrimp mate before spawning, and the female carries sperm pods to be fertilized during spawning.

Therefore, the fertilization process does not require the participation of male shrimp. Measures such as raising the water temperature or removing the eye stalk (which destroys the gland that secretes hormones that suppress ovarian development in females) can promote gonadal development and maturation and early spawning of broodstock.

The above content refers to Encyclopedia - Litopenaeus vannamei.

Most of the ornamental shrimp adapt to the temperature range of about 23-26 degrees, and above 28 degrees, except for the heat-resistant shrimp, other ornamental shrimp are easy to die. In addition, the survival of ornamental shrimp has very high requirements for the pH value and hardness of water quality, usually the pH value is maintained between 5-8, and the hardness is about 6, so that ornamental shrimp can survive better.

Ornamental shrimp are afraid of heat and cold, and the lowest temperature is 8-10 degrees Celsius, but it is more dangerous above 28 degrees, so the best temperature is controlled at about 23-26 degrees, and the temperature can not be too large.

Ornamental shrimp have a certain tolerance to temperature, mainly because it is particularly sensitive to water quality, as long as the pH of the water is between 5-8 and the hardness is about 6, too high and too low will affect the survival of ornamental shrimp.

If the water temperature of the ornamental shrimp reaches 28 degrees Celsius, it needs to be cooled down immediately, and if it is lower than 23 degrees, it needs to be warmed, but it still needs to be adjusted according to the species.

1.The optimal temperature for raising aquarium shrimp is generally around 23-26.

2.This animal has a high temperature demand, and the eggplant potato will die quickly if the water temperature is not right.

3.If you want to raise it well, in addition to controlling the temperature, you should also ensure that the dissolved oxygen is sufficient, if there is too little oxygen, it is not good for its health.

4.In addition, it is also necessary to pay attention to the pH of the water body, it is best to keep it between 5-8 and the hardness is controlled at about 6.

The optimal temperature for raising aquarium shrimp is generally around 23-26. This animal has a high temperature requirement and will die soon if the water temperature is not suitable. If you want to raise it well, in addition to controlling the temperature, you must also ensure that the dissolved oxygen is full of ears, and if there is too little oxygen, it is not good for its health.

In addition, it is also necessary to pay attention to the pH of the water body, it is best to keep it between 5-8, and the hardness is controlled at about 6.