CATDOLL : CATDOLL: Tips on adjusting water conditions for raising white shrimp, what is the appropriate water temperature

1. The secret of water adjustment for raising white shrimp, what is the suitable water temperature

1. Water color control: The ideal water color for white shrimp is yellow-green or yellow-brown formed by green algae, diatoms, and golden algae as the dominant algae. Nitrogen fertilizer and phosphorus fertilizer can be applied in the pond in proportion to control the color. 2. Stabilize pH value: Change the water appropriately and add 5-10 kg/mu of quicklime to adjust the pH value of the water body appropriately. 3. Control transparency: If the transparency is less than 20 cm, be sure to change the water and sprinkle zeolite powder and quicklime.

1. Tips for adjusting water for raising white shrimp

1. Water color control: The ideal water color of white shrimp is mainly yellow-green or yellow-brown formed by dominant algae such as green algae or diatoms, golden algae, etc. When controlling, nitrogen fertilizer and phosphorus fertilizer can be applied in the pond in proportion. Organic fertilizer must be applied in the early stage of thin water ponds. The amount of topdressing can be determined according to factors such as pond water quality, transparency, and pH value. In the middle and late stages of breeding, the residual bait and excrement will increase, and the water color will become darker. At this time, it is necessary to change the water and apply a certain amount of zeolite powder or quicklime to control the water color and pH value. Zeolite powder or water quality protectors with zeolite powder and calcium peroxide as the main ingredients can be added every 15-20 days, and the amount used per 667 square meters is 15-20 kg.

2. Stabilize pH value: pH value is an indicator of the quality of pond water, and it is generally controlled at 7.8-8.6. When the pH value drops, the oxygen carrying capacity of the shrimp will decrease, and the shrimp will have difficulty breathing. When adjusting, you can change the water appropriately and add 5-10 kg/mu of quicklime to adjust the pH value of the water body to a proper level. When the pH value is too high, it will increase the toxicity of ammonia nitrogen and inhibit the growth of shrimp. At this time, zeolite powder can be used to adjust the pH value of the water body to a proper level.

3. Control transparency: Transparency is a comprehensive reflection of the physical and chemical factors in the shrimp pond water, which is mainly related to the density of plankton in the water. The transparency index of the shrimp pond is 30-40 cm in the early stage, about 30 cm in the middle stage, and about 20 cm in the late stage. If the transparency is less than 20 cm, it is necessary to change the water, sprinkle zeolite powder and quicklime. If the transparency is too large, nitrogen fertilizer and phosphate fertilizer can be applied.

2. What is the suitable water temperature for raising white shrimp?

1. The growth temperature of white shrimp is 16-38°C, and the optimal growth temperature is 25-32°C. 1g juvenile shrimp grows fastest in 30°C water, and 12-18g large shrimp grows fastest in 27°C water. White shrimp has a better adaptability to high temperatures than to low temperatures. When the water temperature is below 15°C, white shrimp will reduce or stop feeding, and will lie on its side or die when the water temperature is below 9°C. The feeding and growth of white shrimp will be greatly affected when the water temperature is above 35°C.

2. If the temperature of the white shrimp is too high, it must be regulated. You can spread 2 kg of "Dikang" per mu to prevent and control the bottom heating. Do not use water adjustment and bottom modification products containing flocculants, and try not to spread microorganisms to the bottom of the pond. In more serious cases, you can spread urea in the pond to cool it down.

3. You can also control the water temperature by using an aerator. Do not use a bottom aeration system in the pond to avoid heating the water. Turn on the aerator as early as possible in the morning. If the water temperature is too high after 3 pm, do not turn on the surface aerator unless it is a serious situation. Try to avoid pumping high-temperature water from the upper layer to the bottom layer. Keep the water level above 1.6 meters as much as possible.

2. How to adjust fresh water and build breeding ponds for South American shrimp farming technology

Use "Guangjingju Neutralizing Bacteria" to purify water quality, "Lactic Acid Bacteria" and "Butyric Clostridium" to prevent diseases and inhibit bacteria. Timely water changes during shrimp farming can reduce the accumulation of harmful substances in the pond. Pay attention to not adding water as much as possible in the early stage of farming, less drainage and less intake in the middle stage of farming, adjust water to resist stress, and drain quickly and add slowly in the late stage of farming. Spray drugs for prevention and control when there are more blue algae. In addition, the irregular application of beneficial live bacteria can improve the decomposition and purification capacity of the water environment and promote the circulation of nutrient elements in the pond.

1. How to adjust fresh water in South American shrimp farming technology

1. "Photosynthetic Bacteria" can be used to purify water quality, and "Lactic Acid Bacteria", "Clostridium butyricum" and "Bdellovibrio" can be used to prevent diseases and inhibit bacteria. Pay attention to the matching and alternating use of products.

2. Changing water is a simple way to reduce the accumulation of harmful substances in the pond, but changing water often causes drastic changes in the original water environment of the pond. Pay attention to prevent shrimp stress and changes in water quality. In the early stage of breeding, do not drain or add much water, and try not to add much water; in the middle stage of breeding, drain and add little water, and adjust the water to resist stress; in the late stage of breeding, drain quickly and add slowly, and supplement vitamins, calcium, etc.

3. Pond pollutants are generally divided into two categories: insoluble organic matter and soluble organic matter. Insoluble organic matter should be cleaned up when the pond is dried. For the treatment of soluble organic matter, oxidation products combined with live bacteria products can be used to decompose and treat it.

4. If there are a lot of blue-green algae in the pond, you need to spray algaecides in the areas where the blue-green algae are concentrated to kill the blue-green algae. Pay attention to spraying drugs that have little irritation to white shrimp.

5. Applying beneficial live bacteria regularly during shrimp farming can improve the decomposition and purification capacity of the water environment and promote the circulation of nutrient elements in the pond.

2. How to build a South American shrimp breeding pond

1. The area of ​​the South American shrimp farming pond is preferably 5-7 mu. If it is rectangular, the length-to-width ratio should not be greater than 3:2, the pond depth should be 2.5-3 meters, and the water depth should be kept above 2 meters during the breeding period. The pond bottom should be flat and slightly inclined towards the drain outlet. The water at the bottom of the pond should be able to drain by gravity to facilitate drying and cleaning of the pond bottom.

2. The bottom and walls of the breeding pond must not leak water. If there is leakage, anti-leakage materials must be added, and plastic film can be laid on the bottom and walls of the pond.

3. Drainage facilities can be built with drainage gates or pipes. Drainage facilities can also be built in the center of a circular shrimp pond.

4. The water inlet of the breeding pond is usually piped or canalized from the dam, and the diversion trough is built close to the wall of the pond to avoid erosion of the dam. Two gates are set at the water inlet of the breeding pond, one for the water filter net and the other for the water retaining plate.

3. How long does it take to mix the No. 2 material with water before putting it into the shrimp pond?

It has no effect on water quality. You can use fungi to adjust the water after use. However, it is irritating to shrimp. You can feed less, but not more. You can feed more in the later stage, which refers to the first 20 days before selling. If you like it, please accept it.