Từ điển thú y vần R | R R Factor see PLASMIDS Rabbit Fur Mite This may be picked up by dogs and rabbitkeepers and cause intense irritation. See CHEYLETIELLA PARASITIVORAX. Rabbit Haemorrhagic Disease Rabbit haemorrhagic disease is widespread throughout the UK and the rest of Europe. The disease caused by a calicivirus originated in China and may have been imported into Europe in rabbit meat. Cases are not known in rabbits under 4 months at which age liver metabolism changes. This makes it a serious problem for breeders when a doe dies leaving an orphan litter. Clinical signs are often transient difficulty in breathing or a short squeal followed immediately by the rabbit falling over is often accompanied by sudden death. Animals surviving the acute stage develop jaundice and die after a few weeks. Haemorrhage from the nostrils and or anus may be seen. Prevention is by vaccination. Rabbit Rings The British Rabbit Council issues 100 000 metal rings each year in the UK to members to use in identifying rabbits but advises that the rings should be removed from rabbits sold or given away as pets. Injury can occur if bedding material becomes trapped between ring and leg or if the ring has become with the rabbit s growth - too tight with the risk of causing necrosis. Should that occur surgical intervention or euthanasia will be needed. Rabbit Syphilis Rabbit syphilis is caused by a spirochaete Treponema cuniculi which does not affect humans . It is a venereal disease characterised by the appearance of nodules and superficial ulcers covered with thin moist scaly crusts and oedematous swellings of the surrounding tissues mainly in the region of the genitalia hence the colloquial name vent disease and also sometimes in the region of the nose. Rabbits Breeds of domesticated rabbits used for table purposes include the New Zealand white the California and the Dutch rabbit. See also PETS CHILDREN S AND EXOTIC. Handling When lifting a rabbit a fold of skin over the shoulder and back should be grasped .
