Farm Animals

Sheep Ectoparasite Management and Welfare

External parasites including sheep scab mite, blowfly, lice, and ticks cause significant welfare problems in sheep, with integrated management approaches reducing chemical dependency.

Key Facts

Sheep scab (Psoroptes ovis) causes intense pruritus, self-trauma, and weight loss
Psoroptic mange spreads rapidly through flock contact and is notifiable in some countries
Dipping or injection with appropriate acaricides treats and prevents scab
Blowfly strike prevention in summer requires strategic use of insect growth regulators
Tick-borne diseases including louping ill are transmitted through tick infestations in upland areas

Welfare Considerations

Ectoparasite infestations cause intense itching, self-mutilation, and secondary infections. Prevention and prompt treatment prevent substantial suffering at population scale.

What You Can Do

Implement a strategic ectoparasite management programme with your vet
Monitor sheep regularly for signs of rubbing, wool loss, and skin irritation
Report suspected sheep scab to the relevant animal health authority
Manage pasture and timing of turnout to reduce tick and blowfly risk