Wheelworm is one of the more popular and harmful parasites in farmed fish, which often causes greater economic losses, and even if it is cured with medicine, it will seriously affect the growth of fish in the later stages.
The adaptability of wheel worms is particularly strong, and the four major fish such as bluefish, grass carp, silver carp and bighead carp are difficult to resist the wheel worms, even tilapia with strong vitality, few diseases and low oxygen tolerance, as well as special breeding species such as spotted forktail fish, yellow eel, loach, yellow croaker, eel and so on are also difficult to escape the "magic hand".
Rotifers generally parasitize on the surface and gills of fish, and sometimes in the nostrils, bladder, and ureters. Destroying the skin and gill tissue, affecting the breathing and normal activities of the fish, the parasite number will cause a large number of deaths of diseased fish. If a large number of wheelworms are concentrated on the top and mouth of the fish, the severely worn fish can see the symptoms of white-headed white-mouthed in the water, and the fish's mouth and gills are damaged and cause feeding difficulties, shortness of breath, and even death.
With the continuous rise of water temperature, the activity of parasites has gradually strengthened, especially the influence of wheelworms has increased, causing greater losses and seriously affecting the growth of surviving individuals in the later stages. Although there are many prevention and control measures for parasitic diseases, in order to make the aquatic products that occur in line with the requirements of green food, higher requirements are put forward for the methods of prevention and treatment and medication, and the principle of "prevention first, active treatment, and prudent use" should always be adhered to. Here we briefly discuss a common link in the control of parasitic diseases - the integrated control of wheelworms.
1. Pay attention to the regulation of water quality, prevent the rise of ammonia nitrogen and nitrite, and cultivate a "fat, live, tender and refreshing" corpse environment.
2. Regular use of substrate modifiers to improve the bottom environment, prevent the breeding of bottom pathogens, and create a good living environment for fish.
3. Improve autoimmunity, prevent the invasion of pathogenic bacteria, add bile acids and vitamins to the feed, and enhance their own physique.
4. Regular use of Lechang eucalyptus essential oil for prevention and control. Derived from the leaves of australia's unique multi-bract eucalyptus, le chang eucalyptus essential oil is rich in natural insect repellent factors, which can control common parasites such as wheelworms, ringworms, anchorhead bream, oblique tube worms, and small melon worms common to fish. Safe and non-toxic, does not hurt the water quality, does not hurt the fish body.
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