Cambios en la composición en ácidos grasos del lechón ibérico lactante

• I. Badillo ^[1] ; A. Haro ^[1] ; F. Gómez Carballar ^[1] ; M.A. Aguinaga ^[1] ; R. Nieto ^[1] ; J.F. Aguilera ^[1]
  1. [1] INAN
• Localización: XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza / Jorge Hugo Calvo Lacosta (aut.), Isabel Casasús Pueyo (aut.), Margalida Joy Torrens (aut.), Javier Álvarez Rodríguez (aut.), Luis Varona Aguado (aut.), Begoña Panea Doblado (aut.), Carlos Calvete Margolles (aut.), Joaquim Barcells Teres (aut.), Vol. 2, 2013, ISBN 978-84-695-7684-7, págs. 652-654
• Idioma: español
• Títulos paralelos:
  • Changes in fatty acid composition of suckling iberian piglets
• Enlaces
  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • The present work is part of an experimental program aimed at determining metabolic causes for the lower growth and energetic efficiency of the suckling Iberian piglet when compared to conventional piglets. Sixteen pure-bred Iberian (IB) sows were used in two trials to determine milk nutrient utilization and piglet growth over a 34-d lactation period. Within each litter, equalized to six piglets, one piglet at birth and four piglets on d 35 of life were slaughtered. Fatty acid composition was determined on average milk samples and on carcass and viscera of 1-d and 35-d piglets. Oleic, palmitic, linoleic and palmitoleic acid, contributed to approximately 90% of total fatty acids in Iberian sow milk. At weaning, piglet whole-body fat content increased nearly 5 fold. At this point, in carcass there was a noticeable increase on oleic acid and a decrease on estearic and linoleic acid relative contents, meanwhile in viscera the relative proportions of palmitoleic and oleic acids increased. As a result, fatty acid profile in the weaned Iberian piglet differs from that described for leaner genotypes. The possible consequence of this issue upon energetic efficiency of sow milk nutrient utilization deserves further studies.