The feeding of lactating sows involves gradual increase in feed quantity, starting with minimal amounts on the day of birth (e.g., egg salt water and abdominal gruel), reaching up to 1-2 kg per day within 5 days. Key factors include providing adequate nutrition for milk production, preventing excessive weight loss, and managing the transition to post-weaning feed to prevent mastitis. Sows should be fed slowly, reaching maximum levels around 10-12 days post-partum, with a gradual reduction in feed before weaning to prepare for emptying period standards.