Ichthyologists believe that fish scales are multifunctional tissues. Fish scales, like armor, can play a protective role, help fish resist diseases and protect fish from microorganisms in the water. But for scaleless fish, such as Pelteobagrus fulvidraco, it does not have this protective layer, and its body surface is only protected by mucus.
Pesticides, heavy metals and other toxic and permeable drugs are very irritating to scaleless fish. When parasites appear, if pesticides are used to kill insects, the drugs will stimulate the skin of Pelteobagrus fulvidraco to secrete a lot of mucus. If the drug is used too much and there is no remedial measures, Pelteobagrus fulvidraco will continue to secrete mucus to protect itself, resulting in the fish being unable to secrete mucus after the drug effect has passed, resulting in the decrease or even disappearance of mucus on the body surface and the loss of immune function of the fish. At this time, it is more likely to be attacked by parasites and bacteria and die of other diseases. Moreover, the use of pesticides will also cause Pelteobagrus fulvidraco to eat less, not eat, slip, get black and twitch.
The tolerance of Pelteobagrus fulvidraco to common pesticides is not as good as that of the four major fishes, so we should try to use safe and non-toxic insect repellents in the prevention and treatment of Pelteobagrus fulvidraco diseases.
Lechang Duobao Eucalyptus essential oil can replace pest control and preventive treatment, which can not only effectively control rotifers, but also control parasites such as dactylophora and sporozoa, so that parasites in aquaculture will not multiply in large numbers and will not cause disease and death. It is rich in 1, 8- cineole, monoterpenes, sesquiterpenes, alcohols, esters, aldehydes and ketones. It has strong penetration and permeability, and the synergistic effect of various components can better play the role of insect repellent and antibacterial, and will not cause harm to water quality, and will not cause harm to fish.
In a word, when Pelteobagrus fulvidraco is sensitive to pesticides, using the safe and non-toxic Eucalyptus leaf essential oil can not only control rotifers, giant salamander and other parasites, but also be harmless to fish. Why not use it?