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Occurrence Patterns and Control Methods of Rabbit Necrobacillosis

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I. Symptoms The sick rabbit loses its appetite, salivates, and develops hard nodules on the lips, oral mucosa, and gums, which then become necrotic and foul-smelling. The swellings sometimes occur on the neck, chest, face, or front of the chest, forming abscesses or ulcers. After the lesions rupture, a foul-smelling discharge flows out, and the course of the disease lasts as long as several weeks or months. The rabbit dies from elevated body temperature, emaciation, and exhaustion. II. Prevention and Control 1. Prevention: Rabbit cages should be free of sharp foreign objects to prevent biting and fighting and to prevent skin injuries. Rabbits should be bred and raised on the farm itself. Breeding rabbits introduced from other places must be isolated and quarantined for 1 month and may only be mixed into the group if they have no other diseases.

I. Symptoms The sick rabbit loses its appetite, salivates, and develops hard nodules on the lips, oral mucosa, and gums, which then become necrotic and foul-smelling. The swellings sometimes occur on the neck, chest, face, or front of the chest, forming abscesses or ulcers. After the lesions rupture, a foul-smelling discharge flows out, and the course of the disease lasts as long as several weeks or months. The rabbit dies from elevated body temperature, emaciation, and exhaustion.

II. Prevention and Control

1. Prevention: Rabbit cages should be free of sharp foreign objects to prevent biting and fighting and to prevent skin injuries. Rabbits should be bred and raised on the farm itself. Breeding rabbits introduced from other places must be isolated and quarantined for 1 month and may only be mixed into the group if they have no other diseases. After this disease occurs, immediately isolate and treat the affected rabbits; those with severe disease should be culled, and the cages and equipment should be disinfected.

2. Treatment: Sulfadimidine may be given orally, with an initial dose of 0.14-0.2 g per kg of body weight and a maintenance dose of 0.07-0.1 g, 1-2 times daily. Alternatively, chloramphenicol tablets (or powder) at 0.1 g per kg of body weight, twice daily. For local therapy, the necrotic tissue may be removed, the affected area washed with 0.1% potassium permanganate solution, and then iodine glycerol applied, twice daily.

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