Abrupt weaning is among the most stressful experiences in a calf's life, and gradual weaning protocols significantly reduce the welfare impact.
Weaning stress is mutual and measurable: both calves and cows show physiological and behavioural distress markers during abrupt separation that persist for days. The welfare case for gradual weaning approaches — fence-line contact or two-stage nose flap weaning — is supported by consistent evidence of reduced vocalisation, improved feed intake, better immune function, and lower respiratory disease incidence in the weaning period. These approaches require modest additional management effort but deliver tangible welfare improvements and often economic benefits through reduced treatment costs. The dairy system's practice of immediate neonatal separation — driven by milk hygiene and disease prevention — carries a different but equally real welfare cost for both cow and calf that welfare-progressive producers are beginning to address through extended suckling or contact programmes.