Summer temperatures are high, shrimp food intake is a golden season for its growth. At the same time, the high temperature in summer, especially the heavy rain, has the greatest impact on the culture of white shrimps in South America and can easily cause disease. After several years of practice, the author has summarized the experiences of South American white shrimp farming in response to heavy rain:
First, prevention before the rain. Pay attention to listening to the weather forecast in local and nearby cities (200 km can be), you can know the rain rainfall one week in advance (the current weather forecast accuracy is higher). Timely renovation of the dam to prevent damage to dams, gates and other facilities, as well as overhaul of aerators, power lines and drainage channels. If there is rain acidity (which can be known through daily accumulation and weather forecast) or acidic soil, some quick lime can be sprinkled around the pond to prevent the rain water from drastically decreasing the pH of the pool water. A week before the rain can be splashed with stress vitality, liver protection agents for liver protection. Three to four days before the rain to increase oxygen to change the bottom, so as not to flood the bottom after the storm, to restore bacteria and algae, so as not to change the dead algae.
The second is the treatment in the rain. A lot of rainfall is easy to stratify the water quality, so oxygenation equipment should be turned on immediately when it rains. This will not only increase oxygen, but also prevent water stratification and cause algae death. During the rainfall period, the feed should not be stopped, but the feeding should be controlled. Because the shrimp needs to adapt to changes in the surrounding environment, it needs a lot of energy supply, and at the same time, some anti-stress products need to be added.
The third is the control after the rain. Changes in the salinity of pool water caused by rainfall can lead to irritating clam shells, soft shells or clam shells, and can be relieved by anti-stress calcium supplementation products. After the rain, the ph value of the water should be measured immediately. If the ph value is less than 8, apply quicklime to adjust. After the rain, the weather turned fine, and with the temperature rising, the toxins in the bottom of the pool could easily diffuse into the upper layers of the pond. At this time, the detoxification products should be spilled. Rainfall can also cause the death of algae in water. At this time, detoxification products should be used to divert water and decompose toxins. After the rainfall, it is necessary to pay attention to the control of the material and add multidimensional and polysaccharide products to improve the prawn's constitution.
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