Why do eels have bugs in their stomachs?

Striped parasites are probably tapeworms, which are called "crawling" or "fish-faced intestines" in some places. Taeniasis is an animal infectious disease. There are many kinds of adults, such as cattle, pigs and fish tapeworms, and fish tapeworms mostly occur in freshwater fish. When tapeworms are found in the stomach of fish, never eat them to avoid being infected with tapeworms.

therapeutic method

For the treatment of comprehensive gill diseases, it is generally to kill parasites first, then treat gill mold, and finally treat bacterial diseases. However, according to the degree of eel disease in different eel farms, some steps should be properly selected in the subsequent treatment process.

1. Treating bacteria

When it is determined that gill mold is no longer the main pathogen by microscopic examination or judging the number of dead eels caused by medication, bacterial treatment can be carried out. First, Prozac (10% florfenicol) 7g/? Continuous medicated bath for 2 times, 24 hours each time;

Finally, use "povidone iodine" or other iodine preparations to bathe twice continuously to prevent the secondary infection of pathogenic bacteria.

During the whole treatment, if eels have appetite, it is best to keep feeding, but the daily feeding rate should be controlled between 1.0%- 1.2%. At the same time, add "VC"1.5g/kg, "ve"1g/kg, and "Radix Isatidis granules" 5g/kg. Every time sewage is discharged, it should be completely discharged. The dead eels in the pond were fished out in time.

Illness is inevitable when eel is cultured. It is the key to treat the disease to judge the symptoms in time and correctly and determine the cause. Some eel farms treated by the above methods have achieved very obvious effects on the popular eel gill disease.

2. Parasitic infection

Slice the gill of diseased eel, make it into glass, and examine it under low power microscope. If there are more than 5 dactylogyrus or 10 salamanders in a visual field, the parasites must be treated first.

(1) Dactylogyrus:

Use "potassium permanganate" 1.5g/m? Medicated bath for 2-3 hours;

Then change a lot of water (more than 80%);

Then use "king of peristalsis" (Wuhan) 0.5g/m? +"compound mebendazole" 1.2g/m? Continuous medicated bath for more than 36 hours.

If Dactylogyrus has a large number of larvae, use "AEZ-Insecticidal King" (Wuxi) 0.5g/m? +"Deousan" (Xiamen) 0.6g/m? Continuous medicated bath for more than 36 hours.

If the eels in the severe stage are particularly weak, potassium permanganate 1.8g/m should be selected. "Insecticidal spirit ц" (Chengdu) 3g/ m3, continuous medicated bath for more than 36 hours.

During pest control, the number of eel deaths may increase, but it is very beneficial to continue treatment after pest control. In addition, it usually takes more than 72 hours to kill the giant salamander, but considering the main cause of eel death, after 36 hours of medicinal bath, if the giant salamander is properly reduced or controlled through microscopic examination, the following gill mold treatment can be carried out.

(2) Worm gear:

Use "potassium permanganate" 1.5g/m? Medicated bath for 2-3 hours.

Then change a lot of water (more than 80%);

Then use "Der Blaue Engel" or "Angel Blue" (copper complex) 1.5g/m? +"Hundred Insects Kill" (formaldehyde concentrated solution) 1.5g/m? Continuous medicated bath for 24 hours is enough.

Step 3: treating gill mold.

First of all, salt 1‰+ baking soda 1‰+ methylene blue 2.5g/m? Continuous medicated bath for 2 days, and then a large number of water changes;

Secondly, "Der Blaue Engel" or "Angel Blue" 1.5g/m? +"virus net" (single chain quaternary ammonium salt) 1.5g/m? Take medicine bath continuously for 2 days (1 day), (it is best to start using these two drugs in sunny morning);

Finally, "Antekang" (double-chain quaternary ammonium salt) is 0.7g/m? Medicated bath 2 ~ 3 times, 24 hours each time.

If eels recover obviously, we can consider "methylene blue" 2.5g/m? Use it for another 2 ~ 3 days, or do it again according to the above process. In addition, in the treatment of eel diseases, in some eel farms, except parasites, the main pathogen is gill mold, which has been treated with gill mold, and eels can fully recover.