1 The water quality is extremely important to metapenaeus ensis. Many
1 The water quality is extremely important to metapenaeus ensis. Many farmers do not pay attention to the water quality problem, which leads to a large number of shrimp fry deaths. The water quality has a great relationship with the molting and habitat of metapenaeus ensis. When the dissolved oxygen is abundant, metapenaeus ensis inhabits quickly, so the dissolved oxygen is insufficient, and it is definitely not suitable for inhabitation. In the high temperature season, the aquaculture water tends to be sour and smelly, and it needs to be changed more and more every two to three days. In addition, with the growth of metapenaeus ensis, its size has been reduced. Therefore, it is necessary to deepen the water level and obtain sufficient living space. The water level is about 5 cm to 10 cm at the beginning of seedling release, and it will rise to about 10 cm to 30 cm at the end.
2. The water temperature of the growing environment in metapenaeus ensis is also very important. metapenaeus ensis is suitable for living in the water temperature of 18 to 30 degrees, so seedlings are usually released in late May, when the temperature is relatively stable and suitable for seedling release. In order to ensure the survival rate of shrimp seedlings, desalination should be carried out after one week, except that they can be temporarily raised in salt water for one week, and then they can be moved into the culture pond, instead of a gradual and unstoppable rise, they can be carried out with watering and bait cultivation.
3. If the shrimps enter the pond, it will be the daily management. What is important is the water quality, feeding and disease prevention and management. Water quality supervision is extremely important. After shrimp larvae are reared for about ten days, water should be gradually added, and quicklime or bleaching powder should be sprinkled to improve water quality and sterilize. When the water temperature reaches 24℃ to 30℃, the food intake of metapenaeus ensis will be reduced, which is also the period of its rapid habitat, so it is necessary to reduce the feeding to ensure the food source; Disease management is mostly based on this prevention. Sprinkling quicklime mold at regular intervals can also supplement calcium and promote molting habitat.
4. Although metapenaeus ensis has strong resistance to diseases and growth, it should also be carefully managed and pay attention to their activities when breeding, so as to ensure the high yield of metapenaeus ensis and its own economic benefits.