Finding optimal lactose levels in modern piglet feeds

With changes in pig genetics, weaning age, feed ingredient prices and gut health management strategies, what is the optimal lactose level in piglet diets today?

Professional headshot of a middle-aged man wearing glasses and a brown jacket with plaid shirt Headshot
Ioannis Mavromichalis
August 18, 2025
Piglet Eating
Dusan Petkovic | BigStock.com

Lactose has long been a staple in piglet nutrition, and for good reason. As the primary carbohydrate in sow’s milk, it is highly digestible and palatable, making it ideal for supporting intake, gut development, and early growth. But with changes in pig genetics, weaning age, feed ingredient prices and gut health management strategies, what is the optimal lactose level in piglet diets today?

Lactose promotes several key benefits in young piglets:

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