Effective prevention and treatment of diseases in farmed fish with 7 types of herbs.

(Baonghean.vn) - Weather fluctuations such as severe cold, frost, and saltwater intrusion have weakened the resistance of farmed fish, creating conditions for pathogens to invade and cause diseases. To prevent disease safely, using readily available natural herbs will help treat the pond environment, prevent disease outbreaks, and help fish grow well.

1. Neem leaves - treat anchor worm and wheel worm infections.

The bitter taste of the neem tree, when rubbed against the fish's skin, prevents anchor worms and wheel worms from attaching to their fins and skin.

Method pPreventive measures:Every 15 days, soak neem leaves in the pond at a dosage of 10 kg of branches and leaves per 100 m2 of pond; or 20-25 kg of neem leaves per 8 m3 cage; it can also be applied as a base fertilizer to the pond at a dosage of 0.3 kg/m3 three days before stocking the nursery pond with fish.

Treatment:Take young neem branches and leaves, tie them together, and soak them in a fish pond infested with anchor worms or wheel worms that cause disease; alternatively, soak them in fish cages or enclosures upstream at a rate of 1.5 - 2.0 kg of neem leaves per 150 - 200 m2 of pond until the leaves rot, then remove the branches from the pond.

2.Purple castor oil leaves (castor leaves) - treat gill ulcers and red spots in fish.

Purple castor oil plant leavesIt has a bitter taste and contains the active ingredient Ricin, which is used to treat gill ulcers and red spots in fish.

Method pPreventive measures:Every 15 days, soak purple papaya leaves in the pond at a dosage of 15 kg of purple papaya branches and leaves per 1000 m2 of pond.

Treatment:Take bundles of purple papaya leaves and soak them in the pond at a rate of 2.5 - 3 kg of leaves per 150 - 200 m2 of pond. For fish cages, soak 15 - 20 kg of leaves per 8 - 10 m3 of cage.

3. Purslane plant - treats viral enteritis in grass carp.

Purslane contains betalelan alkaloids used to treat bacterial enteritis in grass carp.

Method pPreventive measures:Feed the fish once every 10 days with a dosage of 1 kg of purslane per 100 kg of fish.

Treatment:Wash the purslane thoroughly and place it in the feeding frame for the fish once a day, continuously for 5-7 days, at a rate of 1.5-3 kg of purslane per 100 kg of fish. For fish fry, chop the purslane finely and sprinkle it evenly on the surface of the pond, making sure the fish are very hungry before feeding them.

4. Sawtooth plant (Chó đẻ) - treats necrosis disease in catfish.

7 types of herbs for preventing and treating diseases in farmed fish.

The serrated dogwood plant is an antibiotic against bacteria causing necrotic disease in catfish, with an antibacterial zone of 11-20 mm.

How to use:Use 5 kg of fresh plant, crush it to extract the juice, and mix it into 100 kg of feed to treat fish diseases.

5. The plant *Nghể* (a type of aquatic plant) - treats enteritis and gill ulcers in grass carp and tilapia.

This is a wild herb that grows in damp places (often found in swamps) and is perennial. It has many branches, lance-shaped leaves, and red flowers that grow in clusters at the ends of branches or in the leaf axils. The plant has a pungent, spicy taste.

Treatment methodsChop the stems and leaves of the plant, boil them thoroughly to extract the liquid, then mix it with fish feed at a dosage of 3 kg of fresh stems and leaves per 100 kg of fish fry, feeding the fish continuously for 3-6 days. Alternatively, dried leaves can be ground into powder and mixed with fish feed at a rate of 1-2 kg of dried leaves per 100 kg of fish fry.

6. Oak tree - treats gill rot and white head disease in fish.

The oak tree is also known by other names such as oak tree, oak tree, and oak tree. The oak tree contains sap with antibacterial properties. Oak leaves are used to treat gill and head rot in fish. Bundles of branches are placed in ponds.

Treatment:It is necessary to apply it to the pond at a concentration of 6.0 ppm (6.0 grams of dried oak branches and leaves/m³ of water). Typically, 1 kg of dried oak branches and leaves (or 4 kg of fresh ones) is soaked in 20 kg of 2% quicklime overnight, then boiled for 10 minutes until the pH is above 12, and then applied to the water.

7. Small-leaved milkweed - treats enteritis and gill rot in fish caused by bacteria.

The small-leaved milkweed plant has a broad spectrum of antibacterial activity, and it also has hemostatic and toxin-neutralizing effects. The entire plant is used to treat enteritis and gill degeneration caused by bacteria.

Treatment:Use 50 grams of dried milkweed or 200 grams of powdered milkweed + 20 grams of salt for every 10 kg of fish weight per day, continuously for 3 days.

Ngoc Anh

(Synthetic)