Forced Handling Decreases Emotionality but Does Not Improve Young Horses' Responses toward Humans and their Adaptability to Stress.
Authors: Pereira-Figueiredo Inês, Rosa Ilda, Sancho Sanchez Consuelo
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Researchers at a Portuguese stud farm investigated whether early handling protocols could improve young horses' long-term responsiveness to humans and stress resilience by comparing three groups of three-month-old foals: one receiving three consecutive daily handling sessions, another receiving monthly sessions over three months, and an unhandled control group. When evaluated at eight months of age using standardised behavioural tests (restraint in stocks and forced human approach), both handled groups showed reduced fear responses to isolation and restraint, tolerated veterinary procedures better, and displayed fewer evasive behaviours—yet paradoxically sought less voluntary human contact and showed no improvement in positive human interaction. Blood work revealed that all foals experienced significant stress during restraint (elevated neutrophil counts and CHCM levels), with handled foals displaying significantly higher neutrophil-lymphocyte ratios than controls, indicating compromised welfare status rather than improved adaptation. The findings suggest that whilst forced early handling may desensitise young horses to novel situations and compliance procedures, it does not foster genuine affinity for humans and may actually reduce overall welfare—an important distinction for breeding operations and early training programmes relying on handling-based socialisation protocols. Practitioners should consider whether compliance achieved through desensitisation aligns with best-practice welfare standards, and whether alternative approaches prioritising voluntary human contact might better serve both horses' physiological wellbeing and long-term human-horse relationships.
Read the full abstract on PubMed
Practical Takeaways
- •Early forced handling may reduce visible fear responses in young horses during stressful situations, but does not create positive human-horse bonds and may indicate underlying welfare concerns
- •Handlers should question whether decreased fearfulness achieved through forced handling represents genuine habituation or masked stress, particularly given elevated neutrophil-lymphocyte ratios in handled foals
- •Consider alternative, positive reinforcement-based handling approaches that may better improve both safety and genuine welfare, rather than relying on forced handling protocols
Key Findings
- •Forced handling sessions (intensive or monthly) reduced evasive and negative behaviors during restraint compared to control foals
- •Handled foals sought less human contact and did not improve their relationship with humans despite decreased fearfulness
- •Handled foals showed significantly higher neutrophil-lymphocyte ratios (p < 0.05) than control foals, suggesting compromised welfare standards
- •All restrained foals displayed stress indicators including increased neutrophil counts and CHCM levels, with no differences in metabolic markers between groups