Farmed Cattle Horn Welfare: Polled Genetics and Dehorning

Dehorning and disbudding of cattle cause significant pain and are performed on millions of animals annually. The development and adoption of polled (naturally hornless) genetics offers a permanent welfare solution.

Key Facts

Dehorning removes existing horns from older cattle; disbudding destroys the horn bud in calves under 2 months using caustic paste or hot iron
Both procedures are performed to reduce injury risk to other cattle and handlers, but cause significant acute and chronic pain
Disbudding under local anaesthetic followed by NSAID treatment significantly reduces pain but is not universally practiced
The polled gene (P) that prevents horn growth exists in most cattle breeds and can be selected for through breeding
Introgression of polled genetics into high-production dairy breeds is progressing through selective breeding and gene editing
A transition to entirely polled cattle herds would eliminate the need for disbudding and dehorning, removing a major source of pain from the industry

Welfare Considerations

The welfare case for transitioning to polled cattle is clear and increasingly achievable. Disbudding causes acute pain measurable through behavioural and physiological indicators; inadequate pain management (no local anaesthetic, no NSAIDs) leaves calves experiencing this pain without mitigation. The chronic pain from scur formation (incomplete disbudding) or dehorning of older animals can last weeks. Breeding polled cattle eliminates this welfare burden permanently and requires no ongoing management commitment once the genetic transition is complete. The main barriers have been production penalties associated with early polled genetics, but modern polled dairy bulls increasingly match horned counterparts in production traits. Gene editing approaches that introduce polled alleles into elite dairy genetics without production compromises are under development but face regulatory hurdles in the EU.

What You Can Do

Support transition to polled cattle breeds by choosing dairy products from farms using polled genetics
Advocate for mandatory local anaesthetic and NSAID use for all disbudding procedures
Support Polled Dairy UK and equivalent organisations accelerating polled genetic adoption
Encourage dairy and beef farmers to consider polled breeding options in their herd improvement plans
Choose beef and dairy from farms with documented pain management for disbudding
Support research into polled genetics development and regulatory frameworks for gene editing