Modern hog farms feature climate-controlled farrowing houses where sows nurse larger litters, often 12 or more piglets. This increase in average litter size has heightened the need for sows to produce more milk. Researchers at Kansas State University have conducted studies to ensure adequate milk production by providing the right nutrients, with findings to be shared at K-State Swine Day on November 21.

One significant focus has been on feeder design, with well-designed dry feeders proving to increase feed intake compared to wet feeders. The timing of food access is also crucial, leading many producers to use automated feeding systems, as sows tend to eat more at night.

These automated systems enable precision feeding, which can enhance piglet weights while minimizing feed costs and environmental waste. As sows’ nutritional needs change during lactation, providing a more nutrient-rich diet becomes essential.

In addition, a technique called drip cooling helps regulate sows’ temperatures, as they cannot sweat. This method, which involves spraying water on their shoulders, works well in conjunction with existing cooling systems to further lower body temperatures and boost feed intake, resulting in higher weaning weights.