Reasons and countermeasures for shrimp swimming pool
Shrimp swimming pool is a very common phenomenon in shrimp aquaculture. According to the causes, it can be roughly divided into the following six situations; First, the lack of bait swim pool This situation can occur in the middle and late pre-shrimp aquaculture, mostly due to lack of food or poor bait quality caused by the upper prawns to the water bait foraging, prawns showed a regular group tour. If this situation occurs in the early stage, attention should be paid to the cultivation of basic foods or small pellets of shrimp feed. In the middle and late stages, feeds should be promptly fed with foods with strong attractability, good palatability, and complete nutrition to avoid shrimps. Physical decline or mutual food. Second, the reasons for the swimming pools caused by swimming pools are mainly due to lack of good fertilizer work, or the large number of breeding of noctiluca, resulting in excessive transparency. The shrimps are not safe at the bottom of the pool and swim pools are generated. Frightened and easy to jump, group tour. If it is due to not doing a good job of fertilizer and water, the measures that should be taken at this time include: (1) changing the water and deepening the water level; (2) using organic fertilizers or inorganic fertilizers for fertilizer; (3) adding microbiological agents such as photosynthetic bacteria. Third, the abnormal weather swimming pool is mainly due to sudden changes in the weather, rapid changes in the physicochemical factors pool water, shrimp stimulated to swim pool. After the rain, the water layer on the bottom of the water layer will cool down, the water layer will be stratified, the bottom layer will be deficient in oxygen, and the shrimp will show up after going to the surface after raining. Most of them have certain directionality. At this point should be activated aerator to stir the upper and lower water evenly, and then applied chlorine dioxide 0.2ppm, half a day after the injection of zeolite powder or maifan stone powder. 4. The anoxic swimming pool occurs at night and in hot weather. At this time, the dissolved oxygen in the pool water is lower and exceeds the tolerance range of the shrimp. Most of the shrimps rise and float, and there is no certain direction in swimming pool movement. , This scenario can be used to take the following measures: 1 start aerobic machine oxygen; 2 for fresh seawater; 3 plus some oxygenation agent for emergency. Fifth, the bottom of the pool pollution swimming pool This situation is generally more common in the aging shrimp ponds, because the successive years of shrimp cultivation and can not completely dredging, resulting in the bottom of the pool there are more residual bait and excrement, in the long-term hypoxia, Produce ammonia nitrogen, hydrogen sulfide and other harmful substances, accumulate to a certain extent is not conducive to shrimp latent, so floating swimming pool, such swimming pool has no obvious regularity, both group and scattered, in the pool surface or water may exist. This situation can be met with the following measures: 1 before the release of the best desilting more than 10cm, followed by exposure to a few days; 2 usually start the aerator, the bottom of the pool of baits and excrement hit the surface, so that harmful substances Oxidation into non-toxic substances; 3 sprinkler zeolite powder, bentonite and other improver first aid; 4 usually combined with photosynthetic bacteria and other beneficial bacteria. Six, shrimp swim pond shrimp infected with white spot, fluorescence, gill disease and other diseases can also cause swimming pool, shrimp shrimp in the water to do slow swimming or wild swim, more than a single swim without flocks, shrimp scared no obvious Reaction, encountering such a situation may be a precursor to the occurrence of a large number of shrimp disease, should be closely observed, carefully examine the sick shrimp, diagnosed after the right medicine, so as not to cause greater harm. Transparent Respirator ,disposable oxygen mask,Disposable Respirator,Bag Respirator Jiangsu Yongle Medical Technology Co., Ltd. , https://www.jsylmedical.com