Interpretive Summary: Influence of fiber type and carbohydrase supplementation on nutrient digestibility, energy and nitrogen balance, and physiology of sows at mid and late gestation
By: Thomas A Crome, Mark A Giesemann, Hannah E Miller, Amy L Petry
This study evaluated the effects and mechanisms of supplementing multicarbohydrases to gestating sow diets containing either corn-dried distiller grains or sugar beet pulp fibrous co-products. Findings revealed significant energy, dry matter, and fiber digestibility enhancements with carbohydrase supplementation, irrespective of adaptation time. However, the interaction between enzyme supplementation and fiber type led to distinct immune marker responses. Specifically, granulocyte-macrophage colony-stimulating factor, interleukin-1 receptor antagonist, and interleukin-2 responses differed based on the presence of insoluble or soluble fiber. Sows in late gestation have greater nutrient and energy digestibility and altered nitrogen balance relative to day 50 of gestation. These findings highlight the potential benefits of incorporating carbohydrases into gestating sow diets to improve nutrient utilization and metabolic efficiency. Moreover, the study underscores the intricate interplay between enzyme supplementation, adaptation time, dietary fiber characteristics, and immune responses, offering valuable insights into the underlying mechanisms governing sow physiology during gestation and the influence of enzyme supplementation.
Read the full article in the Journal of Animal Science.