Dairy Heifer Rearing: Setting Up Welfare for a Lifetime

The welfare of dairy heifers during rearing determines their health, productivity, and wellbeing across their entire productive life.

Key Facts

Heifers that experience disease or poor nutrition in their first year of life have lower lifetime productivity and welfare outcomes
Calf scours and respiratory disease are the leading causes of mortality and welfare harm in dairy calves
Group housing of calves from 2 weeks of age improves social development and cognitive function compared to individual housing
Colostrum management in the first 6 hours of life is the most critical single welfare intervention available
Weaning stress is reduced when calves have access to solid feed before weaning and are weaned gradually
Heifer growth rates on a rising plane of nutrition improve first calving ease and lifetime welfare
Housing design for growing heifers should provide adequate space, ventilation, and lying area to prevent lameness
Age at first calving targets of 22-24 months balance developmental completeness with economic and welfare outcomes

Welfare Considerations

Heifer rearing welfare has long-term consequences that extend well beyond the rearing period itself. Early life disease, nutritional deficiency, and social deprivation in calves and growing heifers create physiological and behavioural sequelae that affect health, productivity, and welfare across years of productive life. The cow that is lame in her second lactation may trace that lameness to a calf pneumonia that impaired lung development, or to a housing environment that allowed digital dermatitis to establish before her first calving. Investment in heifer welfare is therefore not merely ethically required but economically rational: the returns from a healthy, well-developed first-lactation cow significantly exceed the costs of the welfare improvements that produced her. Colostrum management, disease prevention, social housing, and good nutritional management are the foundations.

What You Can Do

Support dairy welfare certification schemes that include heifer rearing standards alongside cow production standards
Ask dairy producers about their heifer rearing practices including colostrum management and social housing
Advocate for group housing of dairy calves to become a standard welfare requirement rather than a premium option
Support research into long-term welfare outcomes of different heifer rearing systems
Reduce dairy consumption and concentrate on certified welfare products from farms with documented heifer welfare standards