Efectos de la betaína y el cla sobre el flujo sanguíneo portal de cerdos ibéricos en crecimiento

• M.L. Rojas Cano ^[1] ; M. Lachica ^[1] ; L. Lara ^[1] ; A. Haro ^[1] ; I. Fernandez Fígares ^[1]
  1. [1] CSIC
• 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. 1, 2013, ISBN 978-84-695-7684-7, págs. 144-146
• Idioma: español
• Títulos paralelos:
  • Effect of betaine and cla on portal blood flow of growing iberian pigs
• Enlaces
  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • To determine possible mechanisms of action that help to explain the growth promoting and nutrient partitioning effects of CLA and betaine, portal blood flow was determined in 30 kg BW barrows (n=4/treatment) fed a barley-soybean meal-based diet supplemented (1.0% CLA + 0.5% betaine) or not. Three chronic catheters were placed in each pig: in carotid artery and portal vein for blood sampling, and in ileal vein for paraaminohippuric acid (PAH) infusion to measure blood flow. After recovery from surgery, a 15 ml pulse dose of PAH (2% w/v) was infused into ileal vein 45 min prior to blood sampling, followed by continuous infusion of 0.8 ml/min. Blood samples were anaerobically taken simultaneously from carotid artery and portal vein 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5 and 6 h after feeding 1100 g of diet. Plasma was stored at -20°C until PAH analysis. Data were evaluated using a mixed procedure with repeated measures of SAS. Postprandial portal blood flow decreased significantly (20.5%, P<0.05) in pigs fed CLA+betaine supplemented diets. Differences in portal vein blood flow may partially explain disparate growth and nutrient partitioning in pigs fed CLA+betaine supplemented diets.