Symptoms: the duck appears mouth breathing difficulties, half of the mouth swelling, some legs paralysis, runny nose, some white shit and some black shit, eat ok, good spirit, there is a problem with a few eyes white skin will be the eye into a cyclops.
Diagnosis: the following diseases can cause what you call symptoms:
1. Duck hepatitis: this disease mainly occurs in 3-20 day-old ducks, other days of age also have the disease, the incidence of rapid growth of meat ducks is relatively high. In general, the earlier the age of onset of the disease, the more serious the disease will be, and the greater the losses to the Ducks. Therefore, it is necessary to investigate the local regularity of the disease in detail, so that in the first few days before the onset of pre-medication to do a good job of prevention. It is easy to differentiate the disease in clinical diagnosis. The main symptoms are dyskinesia, gait instability, neurologic symptoms (rotation, spasm, etc.) , body turning on its side, two feet moving, the growth rate of meat ducks with this disease will be affected to some extent. Anatomical symptoms: liver bleeding, swelling, appearance of mottled, fragile texture, there are many different sizes of bleeding points or bleeding spots, some are a substantial necrotic focus; gallbladder enlargement, bile color fade; spleen enlargement, there is spotty bleeding. The kidneys are swollen and congested. Prevention is the key to this disease. Vaccination against duck hepatitis is usually given within 3 days of age (immunization must be strictly carried out in high-risk areas) . Once the disease starts, the earlier the treatment, the better. Treatment must be given by intramuscular injection of a biological agent, hyperimmune serum or yolk antibody fluid (injected first into healthy ducks and then into diseased ones) , in combination with antiviral drug, adding VC to water is used to protect liver and detoxify, promote the recovery of the body.
2. Infectious serositis of ducks: this disease mainly infects ducklings and young ducks, 10-30 days old ducklings are easy to be infected, adult ducks are not easy to be infected, the whole feeding process according to the situation generally do 2-3 times effective drug prevention.
The main clinical manifestations of the disease are listlessness, drowsiness, necking, beak touch the ground, eating less, runny nose, wet corners of the eyes, sticky secretions, some feathers around the eye moist dirt. Weak legs and feet, weak, legs paralysis, standing instability, movement disorders, people go in, some ducks performance constantly call; Have neurologic symptoms (side down, backward, backward, two feet kicking, tilt head, Tilt Neck, Shake Head, NOD, turn in place) or intermittent neurologic symptoms; row of green or yellow loose stool. The main lesions were in the heart, liver and air sac. The pericardium thickens, the liver swells and becomes brittle, the epicardium, the air sac and the surface of the liver are covered with a layer of yellow or yellow-white cellulose exudate (membrane) , the gallbladder and the spleen are enlarged. Pericardial fluid is increased or has a yellowish cellulose membrane.
The treatment of the disease is to improve the feeding environment, keep the duck house dry and comfortable, avoid the muggy and damp, and keep the ducks not crowded, to insist on regular disinfection, and to keep the good feeding environment plays an important role in the recovery of the disease, vaccine prevention can be used to Escherichia coli and riemerella ANATIPESTIFER double inactivated vaccine injection. When the treatment of local sensitive drugs, dosage must be sufficient, the course of treatment must be enough, do not stop using stop, blind dressing.
3.Duck cold: the disease in the weather changes, such as wind and rain, and so on without shelter, or is the net of ducks from the Internet to the ground when feeding prone. Clinical manifestations are cough, runny nose, eyes closed, napping, lethargy, Touch the head fever, corneal opacity, ocular conjunctiva flushing.
Have Neurological symptoms (unsteady standing, walking backwards, leaning back, twisting or shaking the neck from side to side, twitching, twirling, etc.) . The initial discharge of white sparse stool, and then into green sparse stool. The anatomical symptoms were subcutaneous hemorrhage, edema, meningeal congestion, and hemorrhage of the head. Splenomegaly and punctate hemorrhage. The larynx and trachea mucosa have hyperemia and hemorrhage. Small intestinal mucosa of varying degrees of bleeding, abdominal cavity with yellow oily inflammatory exudation. The heart has varying degrees of degeneration, sometimes striated degeneration and necrosis of the myocardium. The treatment adopts the principle of antipyretic, anti-inflammatory, anti-virus and appetite promotion.