The dry period — the 6-8 weeks before calving when dairy cows stop lactating — is a critical welfare period requiring careful management of nutrition, housing, and udder health that determines welfare for the entire subsequent lactation.
The dry period represents an opportunity to address the accumulated health and welfare costs of lactation while preparing cows for the demands of the next lactation cycle. However, mismanagement during this period creates welfare problems that manifest after calving. Over-conditioning during the dry period — allowing cows to gain excessive body condition on high-quality transition rations — predisposes to the metabolic disease cluster that causes the greatest welfare harm in early lactation: ketosis, displaced abomasum, and hepatic lipidosis. The udder health dimension is critical: new mastitis infections acquired during drying off cause pain and inflammation in the subsequent lactation, and prophylactic antibiotic dry cow therapy combined with teat sealants substantially reduces this risk while also reducing antibiotic usage in responsible selective dry cow programs. Social management at housing — minimising regrouping and providing adequate space — reduces the aggression and reduced feed access that compound welfare problems in early lactation. Access to pasture during the dry period benefits locomotion, body condition normalisation, and psychological welfare.