The end of the double festival long holiday, the price of raw fish ushered in a small increase, joy at the same time do not take it lightly, the recent raw fish Nocardia is very serious, more rotten dead fish continue to increase, close to the listing stage, do not let Noka take away your profits!
In September, the temperature in the Pearl River Delta region will still be mainly hot, but with the arrival of solar terms such as white dew and autumn equinox, the temperature difference between morning and evening will gradually increase, especially at the end of the month when the autumn wind turns, it is easy to appear pan-bottom, inverted algae and other bad water quality, on the other hand, with the continuous increase of feed input, water quality, substrate gradually deteriorated, but the feeding rate remained at a high level, the digestive burden was large, and it was easy to appear sub-health problems such as white feces and flower liver, resulting in weak fish physique.
Nocardia is an opportunistic pathogen that is more likely to infect stressed or immunocompromised fish, causing chronic and occult infections in fish. It is mainly caused by infection of fish gills, cloaca orifice, body surface injury and digestive tract infection, resulting in multiple white nodules in internal organs and ulcers on the body surface.
It is difficult for the drug to achieve a therapeutic effect
1. Pathogenic bacteria damage internal organs
Once Nocardia infects fish, it causes greater damage to the liver, kidneys and other internal organs of infected fish, and brings difficulties to drug treatment due to serious damage to important immune organs.
2. Comprehensive morbidity
The occurrence of Nocardia is mostly a combination of diseases, that is, Nocardia is the main cause, and at the same time causes complications and accelerates the death of fish. Nocardia is a conditional pathogenic bacteria, when water quality changes and weather changes, resulting in a decrease in the resistance of the fish body, Nocardia takes the opportunity to invade the fish body, the body surface of the fish is damaged, and it is also easy to complicate aeromonas, parasites and other problems;
3. It is easy to recur after illness
Nocardiasis is a chronic disease, which comes and goes slowly, and is likely to accompany until the fish are released, especially in high-density farming, the water quality is not well controlled, and it is even more difficult to cure, even after the condition improves, it is necessary to adhere to long-term health care.
How does Noka deal with the occurrence
1. Reduce the feeding amount during the onset period, and it is recommended that the feeding rate should not exceed 2%, so as to provide nutrients for the fish body and reduce the load on the internal organs of the fish; If the amount of death is too large, you can stop feeding, and in a starving environment, fully mobilize the body's autoimmune resistance to resist the attack of germs.
2. If the surface of the fish is ulcerated and congested, it is recommended to use some povidone-iodine disinfectant preparations with Lechang + Happiness 100 to reduce stress reaction, and at the same time disinfect the wound to promote healing.
3. Take some health care products internally, such as immune polysaccharides, Vc, lactic acid bacteria, bile acids, protect liver and gallbladder, promote intestinal digestion and absorption, and improve immunity.
4. Transfer water and change the bottom to create a good environment for the recovery of fish bodies.