1. CAUSES
Viral hepatitis is an acute, highly lethal disease of ducks, geese, turkeys, star chickens, geese and pheasants. In Vietnam, the disease is caused by a virus belonging to the Picornavirus group.
The disease usually occurs in ducks < 6 weeks old, especially 1 – 3 week old ducks with high mortality rate and very rapid spread.2.

2. SYMPTOMS
Observed ducks saw that some of them had difficulty moving, falling behind the flock.
The animal is moody, poor appetite, lying in one place, head tilted back or to one side.
The animal then convulses the whole body, leans the beak on the ground, straightens the legs, swims in the air, after a few minutes dies in the Opisthotonus position (head turned to the back or to the side, legs extended straight back).

3. ACCUMULATE DISEASE
The liver is swollen, soft, easily crushed when lightly pressed.
The liver surface has extensive bleeding, without boundaries.
Spleen, kidney swelling, bleeding.

4. PREVENTION AND TREATMENT
PREVENTION
Prevention by vaccine or injection of duck hepatitis antibodies at a dose of 0.5 – 0.8 ml/head.
Do not import ducklings from areas where the disease is endemic. Ensure food, clean drinking water, ducks live in the most optimal conditions.
Periodically disinfect barns, feeders, drinkers and livestock tools:
– Vinadin: 100ml of medicine mixed with 10 liters of water.
– Chlorine dioxide: 1g mixed with 1 liter of water.
Nourish the body, strengthen the resistance with one of the products such as: B.complex, Vinamix 200, Stress-bran, Premix-vitamin-mineral…
CURE
Immediately inject duck hepatitis antibodies at a dose of 1-1.5 ml/head.
Spraying disinfectants with: Vinadin, Vinadin 600, Chlorine dioxide, Vina Aqua…
Use one of the following antibiotics:
– Treatment of duck: 20g / 100kgP, used 3-4 days will be cured.
– Colivinavet: 10g of the drug for 30-40kgP/day.
– Antidiarrhoea: 1 pack of 10g for 50kg body weight of poultry.
– Gentatylodex oral: 1g/5 kgP/day equivalent to 1g/liter of water or 1g/0.5kg of food.
– Ampicoli fort: Pack of 50/200 kgP/day.
– Vina colidox: 0.5-1gr/1 liter of water/day mixed in drinking water, equivalent to 1-2g/10kgP/day mixed in feed.
Supplement, increase resistance, enhance metabolism with one of the following drugs:
– B.complex for oral: One pack of 100g of medicine mixed with 300 liters of water or mixed with 100 kg of mixed feed.
– Vinamix 200: 1 g/1 liter of water/day for continuous use for 10 days or the whole farming process.
– Stress-bran: 1g drug mixed in 2 liters of water, the drug is used continuously for 4-5 days.
PREVENTION
Prevention by vaccine or injection of duck hepatitis antibodies at a dose of 0.5 – 0.8 ml/head.
Do not import ducklings from areas where the disease is endemic. Ensure food, clean drinking water, ducks live in the most optimal conditions.
Periodically disinfect barns, feeders, drinkers and livestock tools:
– Vinadin: 100ml of medicine mixed with 10 liters of water.
– Chlorine dioxide: 1g mixed with 1 liter of water.
Nourish the body, strengthen the resistance with one of the products such as: B.complex, Vinamix 200, Stress-bran, Premix-vitamin-mineral…