How to raise South American shrimp in summer

Release Time:

2023-04-11

In the summer high temperature season, hot weather, strong light, high water temperature and poor water quality will directly affect the feeding and molting growth of shrimp, and in severe cases, it will also lead to the morbidity and death of shrimp. Key points of vannamei culture during high summer temperature 1. Water temperature As the water temperature continues to rise and the shrimp continue to grow, it is necessary to increase the water depth to keep the water temperature stable, especially in the middle of culture, the water level must be increased to 1.8-2 meters, and the high temperature period should be kept at 2.2 meters. In the low tide and dry period, mechanical drainage and irrigation should be carried out, the daily water change reaches 50%, and the water temperature is effectively controlled within 30 °C during the high temperature period, which is conducive to shrimp eating more material and growing vigorously. However, when changing the water, use mesh at the water inlet to filter the water to prevent the invasion of the epidemic virus carrying shrimp. 2. Feeding According to the body length of shrimp more than 4 cm, feed low-value small shellfish such as snails and clams, and feed 6~8 kg per 10,000 tails per day. When the body length is 8 cm, 50 kg per 10,000 tails per day; When the body length is more than 12 cm, 100 kg per 10,000 tails are fed per day. Or feed compound feed. When feeding, we should adhere to the principle of four less and four more, that is, less in the early stage, and more in the later stage; Cast less in the morning and more in the evening; Invest less at low tide and more at high tide; Shrimp are cast less when molting in large quantities, and more when growing normally. "Two do not throw", that is, do not cast bait, ring ditch and deep water do not throw. It can effectively improve the utilization rate of feed. 3. Disease In the high temperature period, the shrimp activity ability is poor, the body's metabolic level decreases, the water environment deteriorates, and various pathogenic microorganisms breed, which is very easy to cause shrimp diseases. Therefore, it is necessary to feed the bait should not be too much when feeding, so as to avoid the deterioration and smell of the bait, resulting in water pollution. In order to reduce the water pollution of the shrimp pond, the water should be changed frequently. Secondly, in the high temperature season, it is necessary to reasonably adjust the density of shrimp to maintain a certain amount of active water for the shrimp. Regular mixing of shrimp in the feed can promote smooth liver transformation, repair liver damage, enhance detoxification and detoxification function, promote digestion, and prevent intestinal diseases such as long stool, procrastination, loose stool, loose stool, loose stool, intestinal joint, enteritis, white stool, jejunum and jejunum caused by overfeeding, bacterial infection and other reasons. 4. Floating head At midnight, before dawn, the dissolved oxygen in the pond water body drops to the lowest point, once the phenomenon of shrimp floating head is found, it is necessary to turn on the aerator or change the water in time to increase the dissolved oxygen in the pond, in the breeding process should pay attention to remove the silt at the bottom of the pond to ensure good water quality, regularly use the bottom Ruyi to improve the bottom of the pond environment, decompose the feces, residual bait and other organic matter in the sediment, improve the micro-ecological environment of the sediment, and inhibit the growth and reproduction of harmful bacteria at the bottom of the pond. Enhance the vitality of water bodies, promote the virtuous cycle of water bodies, and maintain stable water quality.

Key points of vannamei culture during high summer temperature

1. Water temperature

As the water temperature continues to rise and the shrimp continue to grow, it is necessary to increase the water depth to keep the water temperature stable, especially in the middle of culture, the water level must be increased to 1.8-2 meters, and the high temperature period should be kept at 2.2 meters. In the low tide and dry period, mechanical drainage and irrigation should be carried out, the daily water change reaches 50%, and the water temperature is effectively controlled within 30 °C during the high temperature period, which is conducive to shrimp eating more material and growing vigorously. However, when changing the water, use mesh at the water inlet to filter the water to prevent the invasion of the epidemic virus carrying shrimp.

2. Feeding

According to the body length of shrimp more than 4 cm, feed low-value small shellfish such as snails and clams, and feed 6~8 kg per 10,000 tails per day. When the body length is 8 cm, 50 kg per 10,000 tails per day; When the body length is more than 12 cm, 100 kg per 10,000 tails are fed per day. Or feed compound feed. When feeding, we should adhere to the principle of four less and four more, that is, less in the early stage, and more in the later stage; Cast less in the morning and more in the evening; Invest less at low tide and more at high tide; Shrimp are cast less when molting in large quantities, and more when growing normally. "Two do not throw", that is, do not cast bait, ring ditch and deep water do not throw. It can effectively improve the utilization rate of feed.

3. Disease

In the high temperature period, the shrimp activity ability is poor, the body's metabolic level decreases, the water environment deteriorates, and various pathogenic microorganisms breed, which is very easy to cause shrimp diseases. Therefore, it is necessary to feed the bait should not be too much when feeding, so as to avoid the deterioration and smell of the bait, resulting in water pollution. In order to reduce the water pollution of the shrimp pond, the water should be changed frequently. Secondly, in the high temperature season, it is necessary to reasonably adjust the density of shrimp to maintain a certain amount of active water for the shrimp. Regular mixing of shrimp in the feed can promote smooth liver transformation, repair liver damage, enhance detoxification and detoxification function, promote digestion, and prevent intestinal diseases such as long stool, procrastination, loose stool, loose stool, loose stool, intestinal joint, enteritis, white stool, jejunum and jejunum caused by overfeeding, bacterial infection and other reasons.

4. Floating head

At midnight, before dawn, the dissolved oxygen in the pond water body drops to the lowest point, once the phenomenon of shrimp floating head is found, it is necessary to turn on the aerator or change the water in time to increase the dissolved oxygen in the pond, in the breeding process should pay attention to remove the silt at the bottom of the pond to ensure good water quality, regularly use the bottom Ruyi to improve the bottom of the pond environment, decompose the feces, residual bait and other organic matter in the sediment, improve the micro-ecological environment of the sediment, and inhibit the growth and reproduction of harmful bacteria at the bottom of the pond. Enhance the vitality of water bodies, promote the virtuous cycle of water bodies, and maintain stable water quality.

Precautions for piglet farming

Key points of management of vannamei culture in summer

Precautions for piglet farming

Key points of management of vannamei culture in summer

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