Prevention of Loach Diseases in High Temperature and Rainy Season
1. The cause of morbidity First, in high temperature season, due to the high water temperature, muddy louse is prone to stress reaction, physical fitness is decreased, and the immunity and disease resistance of the body are also reduced, giving the pathogenic bacteria an opportunity. Dehydrated Leek G/W New Crop,Ad G/W Leek Flakes,Air-Dried Leek,Air-Dried W/G Leek Flakes Xinghua Jiahe Foods Co., Ltd. , https://www.jiahefoods.com
Second, a large number of pathogenic bacteria, a large number of pathogenic bacteria accumulated inside and outside the loach, increased virulence, vulnerable to infection with poor mud.
Third, the density of mud aquaculture is generally relatively large. The greater the aquaculture density is, the greater the demand for oxygen is, that is, there is a high requirement for water quality. Once the water quality deteriorates, it causes mud loach diseases. If it is not properly controlled, it is easy. The mud louse that caused the entire loach pond was infected and the consequences were very serious.
Fourth, the weather changes abruptly, and the high-temperature season is accompanied by heavy rain. The stress factors caused by the heavy rain are: On the one hand, a large number of algae die, water-containing oxygen species increase, dissolved oxygen decreases sharply, and the source of dissolved oxygen in the water body is destroyed, resulting in overall deterioration of water quality; On the other hand, the cooling after the heavy rain resulted in the stratification of the upper and lower water convection, and the lower layer of oxygen-consuming material was brought to the upper layer, which consumed a large amount of dissolved oxygen in the water, especially sudden rainstorms in the evening. After the heavy rain, the sunlight became weak and photosynthesis. If it is not strong, the dissolved oxygen in the water will not be supplemented, and the ammonia nitrogen conversion rate of the water body will be greatly weakened. As a result, the sub-salt and ammonia nitrogen will be high, the water quality will be worsened, and the stimulation of the mud will be even greater.
Fifth, the old fish that have been cultivated for many years have been fed with a long-term compound feed. The load on various organs in the body has increased, and the culture environment has suddenly changed. The lesions are prone to occur, such as abnormal liver and gallbladder color, swelling, and large area bleeding. Adhesion with the surrounding body wall.
2. Preventive measures (1) Deepen the depth of water in time to reduce the water temperature. (2) Before the storm, Quanchiposa VC should be poured out. (3) Detoxification with organic acid antidote or pond detoxification + VC after heavy rain. (4) Oral florfenicol + VC + liver and gallbladder drugs, twice a day, and even served 3 to 5 days. (5) Extroverted: glutaraldehyde + blood stasis, once a day, even splashing for two days.