Grouper has the characteristics of high nutrient content, low fat, delicious meat, high protein, etc., and is considered to be one of the four famous fish in China in Hong Kong and Macao, with high economic value, and has been widely cultured in China's coastal areas. However, in the process of grouper breeding, parasitic diseases such as small melon worms, ringworms, wheel worms, etc. Today, we will explain to you how to deal with grouper wheel worms.
Wheelworms are attached to the gills or skin of fish with attachment plates and slide back and forth, sometimes leaving the host to swim freely in the water. Swimming generally with the reverse mouth facing forward like a wheel rotation, wheel worms generally parasitize in the grouper's body surface and gill infection caused, a small amount of time on the fish body has no adverse effects, there is no special symptoms, once a large number of parasitic groupers will have a decrease in appetite or do not feed the situation, swam in the pool or cage side, gill tissue flushing, mucus hyperplasia, gill filament white rot, breathing difficulties, floating head and other symptoms, and finally roaming in the pool or cage side and finally died. Large groupers have strong resistance to wheelworms, but small fish or fry have low resistance and often cause a large number of deaths due to gill rot caused by wheelworms, which is generally more prevalent in April and July.
When the outbreak of wheelworm caused a large number of grouper deaths, farmers will think of using some insecticides for the first time, but the effect of using insecticides is not ideal, sometimes just after curing, once the drug is stopped, it will recur immediately, and even the use of insecticides will not only not get better, but die faster. This is because our traditional idea is to get parasites and then use insecticides to kill, based on this idea, the resistance of wheelworms is getting stronger and stronger, the amount of insecticides used is getting higher and higher, and the toxicity of insecticides is also increasing, which eventually leads to insecticides not only killing parasites, but also killing groupers by the way, which will also affect water quality. So we need to do a good job in the prevention of wheel worms, don't make up for it!
Want to prevent wheelworms is first of all to maintain good water quality, followed by the mixture of eucommia leaf extract to improve the resistance of groupers, and finally can choose natural, safe, non-irritating Lechang eucalyptus essential oil insect repellent products, Lechang with Australia's unique eucalyptus essential oil as raw materials, rich in single terpenes, sesquiterpene, 1,8-eucalyptus and other active ingredients, to deworm instead of insecticide, both to solve the problem of wheelworms can also solve aquatic fingerring, oblique tubeworm, spore worms, anchorhead mackerel and other parasites, safe green does not hurt fish , not bad water.
All in all, eucalyptus essential oil Lechang is a natural, safe, non-toxic, non-polluting, non-irritating insect repellent products, the use of eucalyptus essential oil to prevent and control wheel insects, reduce the disease of wheelworms in grouper farming, reduce casualties and losses, increase production and income.
The article comes from Shandong Longchang Dongbao, unauthorized reproduction, thank you!
For more information, please pay attention to the WeChat public account: California Perch Frontier.