CATDOLL : CATDOLL: How to make crabs shed their shells in the shortest possible time?

1. How to make crabs shed their shells in the shortest time?

Decapsidin

The role of crab shelling agent:

1. When river crabs molt, natural cannibalism will occur. Some river crabs will be eaten by river crabs that have not molted during the molting period, which will lead to an increase in the mortality rate. The use of molting agents can allow river crabs in the soft-shell period to quickly turn into hard shells in a short period of time, quickly become strong, and thus avoid cannibalism.

2. Shelling agents can help river crabs shed their shells successfully and smoothly, thereby increasing the success rate of molting and thus increasing the survival rate.

3. Shelling agents can promote the speed and frequency of river crabs molting. Every time river crabs molt, they grow a circle larger. Increasing the speed and frequency of molting is one of the keys to raising large crabs.

Crab farming essential crab shelling agent

2. How much feed should be fed to crabs during the molting period

Feeding crabs during molting period

(1) Feed high-quality bait and add [shrimp and crab vitality factor] and [high stable vitamin C] to supplement nutrition. Before each molting, not only should compound feed containing molting factor be fed to ensure synchronous molting, but the amount of animal bait must also be increased so that the proportion of animal bait accounts for more than 1/2 of the total amount of bait, to keep the bait edible and sufficient to avoid leftover soft-shell crabs.

(2) Increase the calcium ion content in the water. If you find that some river crabs have molted, you should promptly sprinkle [granular ionic calcium] dry, with each bag covering three acres, and then sprinkle again after 2-3 days.

(3) Keep the water level stable. During the molting period, the water level needs to be kept stable and generally there is no need to change the water.

(4) The feeding area and the molting area must be strictly separated. It is strictly forbidden to place bait in the molting area. If there are few aquatic plants in the molting area, more aquatic plants should be added and the area should be kept quiet.

3. The time when crabs shed their shells.

I don't know! I haven't observed it! This date is not fixed. Crabs are crustaceans, so they shed their shells according to their body development. That is to say, some crabs with better nutrition will shed their shells every two weeks, while others may take two months~ And if they hibernate, they will not shed their shells~*^0^*~

1. When river crabs molt, natural cannibalism will occur. Some river crabs will be eaten by river crabs that have not molted during the molting period, which will lead to an increase in the mortality rate. The use of molting agents can allow river crabs in the soft-shell period to quickly turn into hard shells in a short period of time, quickly become strong, and thus avoid cannibalism.

2. Shelling agents can help river crabs shed their shells successfully and smoothly, thereby increasing the success rate of molting and thus increasing the survival rate.

3. Shelling agents can promote the speed and frequency of river crabs molting. Every time river crabs molt, they grow a circle larger. Increasing the speed and frequency of molting is one of the keys to raising large crabs.

Crab farming essential crab shelling agent

4. Can compound fertilizer and urea be applied during the crab molting period?

1. Do not apply compound fertilizer and urea during the crab molting period.

2. Do not apply compound fertilizer and urea to reduce stress response.

3. Do not apply compound fertilizer and urea to keep the water rich, fresh and bright.

4. Use biological fertilizer to fertilize the water.

Crab molting management:

1. Keep the water level at an average depth of about 60 cm. Keep the water level constant and try not to add water during molting.

2. The water quality should be kept rich, fresh and bright, mainly to cultivate high-quality algae.

3. Aquatic plants such as Elodea should maintain their growth momentum, and their leaves should be kept fresh, clean and free of dirt to provide a habitat for crabs to molt.

4. During the molting period, it is forbidden to use insecticides, disinfectants, moss killers and other irritating drugs into the water. Appropriately spray nutrients such as calcium, amino acids, multivitamins, glucose, etc. to reduce the stress response of crabs, increase the nutritional content of the water, and maintain good microcirculation.

5. During the period of mass molting, do not release large quantities of snails into the water.

6. After the first molting, you can carry out an insecticide disinfection on the water, and raise the water level by 10-20 centimeters in time to detoxify the water body and improve the bottom, and further fertilize the water and cultivate algae. It is advisable to use biological fertilizer for fertilizing the water, with a dosage of 3-5 kilograms per mu and per meter of water depth, to keep the water quality fresh and fertile.

5. Can insecticides be used during the molting period of river crabs?

Hello:

It is not possible to use river crab shelling agent bleaching powder during the shelling period.

I hope my answer is helpful to you!

6. Can urea and compound fertilizer be used during crab molting?

Compound fertilizer is a chemical fertilizer containing two or more of the three elements of nitrogen, phosphorus and potassium. For example, potassium phosphate contains P and K. Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops. But it also has some disadvantages. For example, its nutrient ratio is always fixed, while the types, quantities and proportions of nutrients required by different soils and different crops are diverse. Therefore, it is best to test the soil before use to understand the texture and nutritional status of the field soil. In addition, it should be used in combination with unit fertilizers to achieve better results.

Urea is a physiologically neutral fertilizer. It does not leave any harmful substances in the soil and has no adverse effects when applied for a long time. However, if the temperature is too high during granulation, a small amount of biuret will be produced, which has an inhibitory effect on crops. my country stipulates that the content of urea biuret in fertilizers should be less than 0.5%. When the content of biuret exceeds 1%, it cannot be used as seed fertilizer, seedling fertilizer or foliar fertilizer. The content of urea in other application periods should not be too much or too concentrated.

Urea is an organic nitrogen fertilizer, which contains only 46% nitrogen. It can only be absorbed and utilized by crops after being hydrolyzed into ammonium carbonate or ammonium bicarbonate by urease in the soil. Therefore, urea should be applied 4 to 8 days before the crop's fertilizer-requiring period. Urea is suitable for use as base fertilizer and topdressing, and is sometimes also used as seed fertilizer. Urea is in molecular form before conversion and cannot be adsorbed by the soil. It should be prevented from being lost with water. The ammonia formed after conversion is also volatile, so urea should also be applied deeply and covered with soil.