Rabbit瘟 Outbreak: Symptoms & Prevention Strategies
Section 1: Characteristics of Rabbit Hemorrhagic Disease
1. Early Onset of Illness: The outbreak of Rabbit Hemorrhagic Disease (RHD) often becomes evident in rabbits around the age of 40 days. However, cases in young rabbits over 30 days old are quite rare.
2. YearRound Incidence with No Seasonal Pattern: RHD can occur throughout the year and does not follow a specific seasonal trend. It is typically controlled through combined vaccination programs.
3. NonSpecific Symptoms: RHD can manifest in three forms—acute, subacute, and chronic. However, distinguishing between these types can be challenging in clinical settings.
4. Diverse Lesions: The pathological changes in affected rabbits can vary greatly. Some cases are quite apparent, while others are subtle. Common pathological signs include hemorrhages in the tracheal rings, pulmonary congestion, subcutaneous and muscular hemorrhages, and small, sticky fecal balls around the anus.
5. Onset During Immune Period: Some rabbit farms experience a surge in deaths shortly after vaccination, often without suspecting RHD. This lack of immediate control can lead to significant losses.
6. Mixed Infections and Complex Pathogenesis: RHD often coincides with other diseases, making the symptoms less distinct and more complex. This complexity also complicates diagnosis and treatment.
Section 2: Regional Transmission of Rabbit Hemorrhagic Disease
The primary sources of transmission are deceased rabbits and carriers of the RHD virus. The virus is shed continuously, and exposure to excretions, secretions, contaminated water, feed, utensils, and the environment can lead to infection in susceptible rabbits, causing rapid spread within a region.
Therefore, RHD can be transmitted indirectly through various vectors, including humans. It is crucial for breeders to disinfect themselves upon entering other rabbit farms or when purchasing new stock. It is recommended to quarantine newly introduced rabbits for 10 days, vaccinate them, and only introduce them into the main flock after no abnormalities are observed for 10 days.
Dr. Oxygen Pet温馨提示Although Rabbit Hemorrhagic Disease does not transmit to humans, it is still advisable for owners to disinfect themselves before entering the rabbitry to prevent introducing the virus and infecting their own rabbits.
