Dietary vitamin A restriction affects adipocyte differentiation and fatty acid composition of intramuscular fat in Iberian pigs
Artículo de investigación publicado en Meat Science
1 de octubre de 2015
The aim of this study was to investigate whether dietary vitamin A level is associated with differences in adipocyte differentiation or lipid accumulation in Iberian pigs at early growing (35.8kg live weight) and at finishing (158kg live weight). Iberian pigs of 16.3kg live weight were allocated to two feeding groups, one group received 10,000IU of vitamin A/kg diet (control); the other group received a diet with 0IU of vitamin A (var) for the whole experimental period. The dietary vitamin A level had no effect on growth performance and carcass traits. The early suppression of vitamin A increased the preadipocyte number in Longissimus thoracis (LT) muscle in the early growth period (P<0.001) and the neutral lipid content and composition (higher MUFA and lower SFA content) at the end of the finishing period (P<0.05). Vitamin A restriction in young pigs increases their lipogenic potential without affecting carcass traits
Ayuso M., Ovilo C., Rodriguez-Bertos A., Rey AI., Daza A., Fernandez A., Gonzalez-Bulnes A., Lopez-Bote CJ. y Isabel B.
 | Departamento de Producción Animal. Facultad de Veterinaria. Universidad Complutense (UCM). |
| Departamento de Medicina y Cirugía Animal. Facultad de Veterinaria. Universidad Complutense (UCM). |
| Servicio de Patología y Veterinaria Forense (SAP). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM). |
 | Departamento de Mejora Genética Animal. Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA). |
| Departamento de Reproducción Animal. Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA). |
 | Departamento de Producción Animal. Universidad Politécnica de Madrid (UPM). |
