CONICET | Buscador de Institutos y Recursos Humanos

and survival. Recently, amino acid nutrition in pigs has been used effectively to improve pregnancy outcomes,especially, conditionally essential amino acids for gestating swine such as arginine and glutamine. Theirangiogenic effect during pregnancy has provided an effective approach to solve reduced litter size and toimprove sow?s reproductive performance. In association with amino acid nutrition in sow diets, placentalvascularization and uterine capacity are factors that contribute to mitigate Intrauterine Growth Restriction(IUGR), a common problem in both human medicine and animal production, including swine production. Thepurpose of this review is to highlight the effects of maternal amino acid supplementation on intrauterineenvironment and IUGR presentation and to outline recent scientific advances supporting its beneficial use asa nutritional tool in gestating sow diets.