부산대학교 도서관

Simple Summary: According to the National Research Council (NRC), during gestation, sows have higher nutritional requirements to meet their needs and those of their fetuses. Therefore, an optimal feeding strategy is essential. Despite the importance of nutrition during gestation, the impact of supplementing the diets of gestating sows with foods rich in fatty acids, protein, amino acids, and dietary fiber on their offspring has not been thoroughly explored, so empirical evidence is scarce. The objective of this review is to evaluate the effect of gestating sows' nutrition on the survival and postnatal growth of neonate piglets. Sixty percent of the publications reviewed discussed the effect of supplementing diets with one or two of these nutrients, indicating the importance of the topic. Better overall postnatal survival and growth was found to be associated with supplementation with these nutrients during gestation. The studies mainly evaluated the effect of amino acids and fiber, likely because the former are the primary source of protein for the fetus, while the latter exerts an effect on the immune system. Additional research is needed to support these findings. This systematic review analyzed the effect of selected nutrients and additives in the feed of pregnant sows on the survival of newborn piglets. We analyzed 720 peer-reviewed publications in English in PubMed® and Web of Science®, dated July 2023 to January 2024, related to the effect of dietary supplementation with fatty acids and various percentages of protein, amino acids, and/or sources of dietary fiber on the offspring of gestating sows. While several papers evaluated the effect of nutrition on gestating sows, only a few delved into the distinct feeding strategies required at each stage of gestation to meet the NRC's nutritional requirements for maternal tissue gain and postnatal neonatal survival and growth. This body of research suggests that as gestation progresses the sow's nutritional requirements increase, as the NRC established, to satisfy their own metabolic needs and those of their fetuses. Additional research is needed to determine an optimal feeding strategy. [ABSTRACT FROM AUTHOR]