Richerieri duck pestis is an infectious disease caused by the bacterium R. apestis and mainly affects ducklings and young ducks. The disease is more common in the duck industry, which has brought great economic losses to farmers. This article will introduce the disease from the aspects of etiology, epidemiology, clinical symptoms, diagnosis and prevention.
1. Etiology.
Richella apestis is a gram-negative bacterium that is oval or short rod-shaped, flagellated, and sporous. The bacterium is susceptible to antibiotics such as penicillin, but has some resistance to sulfonamides. The bacterium is mainly transmitted through the respiratory and digestive tracts, but it can also be transmitted through eggs.
2. Epidemiology.
The disease occurs mainly in ducklings and young ducks, especially those around 1 month of age. The disease is transmitted mainly through respiratory and digestive tract infections, but also through eggs. The epidemic season of the disease is mainly in spring and autumn and is associated with climate change and husbandry management.
3. Clinical symptoms.
The incubation period of the disease is generally 2-7 days, and the main manifestations of sick ducks are malaise, loss of appetite, loose feathers, necking, tearing, dyspnea and other symptoms. Sick ducks often have diarrhea, diarrhea and other symptoms, sometimes accompanied by neurological symptoms, such as shaking the head, twisting the neck, spasms, etc. The mortality rate of sick ducks is relatively high, generally more than 50%.
4. Diagnosis. The diagnosis of the disease is mainly based on clinical symptoms and pathological changes, and the diagnosis is confirmed by laboratory tests. Laboratory tests can be diagnosed by smear microscopy, isolation and culture, and biochemical tests.
5. Prevention and control. 1.Strengthen feeding management: keep the duck house clean and hygienic, disinfect regularly, improve feed quality, and enhance the resistance of the duck body.
2.Immunization: Immunization of ducklings and young ducks can effectively prevent the occurrence of the disease.
3.Drugs**: Sick ducks can be treated with sensitive antibiotics**, such as penicillin, streptomycin, etc. At the same time, some traditional Chinese medicine preparations can be used for assistance**, such as banlan root, honeysuckle, etc.
4.Preventive measures: strengthen feeding management, improve feed quality, and enhance the resistance of ducks;Disinfect regularly to keep the duck house clean and hygienic;Immunization of ducklings and young ducks;Eggs are strictly sterilized to prevent vertical transmission.
In conclusion, duck plague Rricheriosis is a common infectious disease that has brought great economic losses to the duck industry. In order to effectively prevent and prevent the disease, it is necessary to strengthen the work of feeding management, immunization, drugs and preventive measures. At the same time, farmers should also pay attention to the changes in the duck population, timely detection and disease of ducks, reduce losses.