What is the bacteria that causes pasteurellosis in rabbits?

The bacteria that causes pasteurellosis in rabbits is Pasteurella multocida. This organism is a gram-negative bacterium commonly found in the respiratory tract of healthy rabbits and can lead to significant health issues when the rabbit's immune system is compromised or when environmental conditions are unfavorable. Pasteurellosis is characterized by symptoms such as nasal discharge, sneezing, and pneumonia, making it critical for rabbit owners to recognize and manage this condition effectively.

Understanding the pathology associated with Pasteurella multocida helps in breeding and maintaining healthy rabbits. While other bacteria listed in the choices may affect rabbits in various ways, they are associated with different infections or health challenges rather than pasteurellosis specifically. For instance, Bordetella bronchiseptica primarily causes respiratory diseases in other animals, and Escherichia coli is often related to gastrointestinal infections. Staphylococcus aureus is known for causing skin infections and abscesses. Therefore, recognizing Pasteurella multocida as the causative agent of pasteurellosis emphasizes its significance in rabbit health management.