Ringworm disease is a common parasitic disease in the process of eel breeding, but also a parasitic disease with the highest incidence and greatest harm in eel farming, which is directly related to the production and economic benefits of eel farming, so we must do a good job in prevention and control measures to reduce the incidence of eel ringworm disease and avoid the huge losses caused by untimely disease control to eel farming.
Eel ringworm disease can occur all year round, temperature 20 ° C -28 ° C is the most suitable for the growth of ringworms, ringworms are mainly parasitic in the gills of fish, the eels that are parasitic by ringworms will increase the secretion of gills, gill flap congestion, gill caps are undulating abnormally, all or locally pale, breathing will be very difficult, the amount of food intake will be reduced seriously will not eat, the eel swims slowly and weakly, and sometimes there will be a situation of swimming alone and wandering on the water. When ringworms parasitize in large numbers, they cause a large number of eel deaths.
Once a ringworm outbreak occurs, it is very difficult to treat. Generally everyone will choose to use mebendazole to kill insects, and ringworms are difficult to kill because it will appear repeatedly. Mebendazole is slow to kill ringworm adults and larvae, and the higher the water temperature, the faster the eggs hatch, this batch of insects has just been killed, the new ringworm eggs have hatched again, and the concentration of mebendazole solution at this time has been reduced, certainly can not achieve a good insecticidal effect, re-addition is easy to cause the amount of medicine to exceed the standard caused by eel poisoning and death. In the end, it is very likely that the ring worm did not kill, and the fish died quite a bit. Therefore, when eels have ringworms, we must not blindly use insecticides, which is likely to be counterproductive.
Although eel ringworms are difficult to treat, there is no way to deal with eel ringworms, because eel ringworms can be prevented and controlled, and we can do a good job in the early stage of prevention to reduce the incidence of eel ringworms:
1. Keep the water quality clean, pay attention to the bottom, adjust the water, stabilize the water environment, and reduce the transmission route of parasites.
2. Pond disinfection. Before the seedlings are planted into the pond, the pool is thoroughly disinfected with quicklime to cut off the conditions for parasite breeding.
3. Starting from the release of seedlings, regular mixing and internal taking of safe, non-toxic and non-harmful fish repellent products - Lechangduo eucalyptus essential oil.
Lechang eucalyptus essential oil, is imported from Australia small multi-bract eucalyptus essential oil, it is rich in 1,8-eucalyptus, monoterpenes, sesquiterpenesene, alcohols, esters, aldehydes and other plant active ingredients, has a strong penetrating and permeable, naturally has anti-insect and bacteriostatic effect, to deworm instead of insecticide, to prevent instead of treatment, one-time can prevent and control ringworms, wheelworms, spores, melon worms and other parasites, green safety and efficiency, so that the parasites in aquaculture can not multiply in large quantities, so that parasites can not cause the onset and death of fish.
It has been proved that the use of Lechang on a regular basis every month can effectively prevent the occurrence of eel ringworms. When the fish body is infected with a small number of ringworms, the use of Lechang for 5-7 days can be used to drive away the ringworms parasitic on the fish, restore the health of the fish, will not affect the feeding and growth of the fish, do not pollute the water quality, so that everyone can use the safety, use at ease.
Eels are very valuable, the use of toxic insecticides in the breeding process will bring huge losses, the use of safe and effective insect repellent control ringworms is reliable and usable. Not only eel ringworms, for diseases in fish farming we still have to attack in advance, do a good job in the prevention and control of diseases, adhere to the principle of "prevention before illness, prevention is more important than treatment", can not wait until the outbreak of insects and then think about treatment, then it is really half the work, more than worth the loss.
The source of the article is the official website of Shandong Longchang Dongbao