Internal parasites including barber pole worm are a leading cause of suffering and death in sheep, with anthelmintic resistance making management increasingly challenging.
Parasitic gastroenteritis and Haemonchus infection cause suffering through anaemia, weight loss, bottle jaw, and death. The welfare-optimal approach maintains effective treatment options through resistance management while rapidly treating animals showing welfare compromise. FAMACHA eye scoring identifies animals requiring treatment based on anaemia severity, allowing targeted treatment that preserves drug efficacy for when it is genuinely needed.