兔呼吸道疾病鉴别诊断与分级治疗方案

Rabbit respiratory diseases are common problems in large-scale rabbit farms, especially prevalent in seasons with poor ventilation and high ammonia concentrations. As clinical signs of various respiratory diseases overlap significantly, accurate differential diagnosis is crucial for selecting correct treatments.

Pasteurellosis is the most common cause of rabbit respiratory infections. Characteristic signs include serous to purulent nasal discharge, initially sneezing and nasal congestion, later progressing to moist rales and dyspnea. Necropsy reveals pulmonary consolidation and thoracic empyema. Nasal swab bacterial culture confirms diagnosis.

Bordetellosis caused by Bordetella bronchiseptica features frothy nasal discharge and violent coughing. It differs from pasteurellosis in having frothy rather than thick purulent discharge and coughing sounds resembling goose calls.

Staphylococcosis can cause necrotizing pneumonia with acute onset and high mortality. Klebsiella pneumoniae infection tends to occur after stress, causing fibrinous pleuropneumonia.

Graded treatment: mild (sneezing and nasal discharge only) uses enrofloxacin or tilmicosin in drinking water for 5 days. Moderate (moist rales and fever) uses intramuscular ceftiofur sodium combined with enrofloxacin for 3-5 days. Severe (dyspnea, anorexia) requires intravenous fluid support with sensitive antibiotics.