Flystrike in rabbits

Flystrike is a relatively common and serious problem in rabbits.

Flies are attracted to moisture, smell and warmth around the back end of a rabbit. This is enhanced if rabbits are soiled with faeces or urine. An individual fly can lay up to 200 eggs, the maggots from the fly eggs can emerge within hours and start feeding on superficial debris on the skin.  Once they have exhausted this food supply, they begin to burrow into the moist skin. This is particularly painful and the toxins produced in the process can send the rabbit into toxic shock which can quickly become fatal.  

Inspection of your rabbit's skin at least once every 24 hours is recommended. It will often be necessary to remove faeces stuck to hair or wash urine-soiled hair at this time.  Small white eggs or maggots on the hair and skin, particularly around the anus and genitals, indicate flystrike. The skin becomes red, ulcerated and painful as the condition becomes more severe.  

Flystrike can progress quickly and usually requires vet attention. If caught early, the eggs can be brushed from the skin.  If they have already hatched, the maggots are removed individually. Depending on the severity of the condition, fluids, pain relief and antibiotics may be indicated.

Unfortunately, in many cases, progression of fly trike is so rapid that euthanasia needs to be considered to prevent further suffering.

Dr Linda Sharp, BVSc, Pukekohe