Caracterización de la fermentación ruminal y perfiles metabólicos de novillas sometidas a diversos manejos alimenticios durante la lactación y la recría

• Autores: Isabel Casasús Pueyo, J. A. Rodríguez Sánchez, J. Ferrer, A. Sanz
• Localización: XVI Jornadas sobre Producción Animal: 19 y 20 de mayo de 2015, Zaragoza / Javier Álvarez Rodríguez (aut.), Begoña Panea Doblado (aut.), Jorge Hugo Calvo Lacosta (aut.), Mireia Blanco Alibés (aut.), José Alfonso Abecia Martínez (aut.), Daniel Villalba Mata (aut.), María Ángeles Latorre Górriz (aut.), Vol. 1, 2015, ISBN 978-84-606-7969-1, págs. 218-220
• Idioma: español
• Títulos paralelos:
  • Ruminal fermentation and metabolic profiles of beef heifers under different feeding treatments during lactation and rearing
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• Resumen

  • This study analysed the effects of different diets offered during the lactation and rearing phases on the ruminal fermentation patterns and metabolic profiles of Parda de Montaña beef heifers at 6 and 15 months of age. At 6 months, most ruminal parameters and plasmatic metabolites differed between feeding treatments applied in lactation, and so did at 15 months between rearing treatments. Ruminal ammonia concentration, total VFA, acetate, propionate and butyrate molar proportions were related to growth rate, glucose, cholesterol, beta-hydroxybutyrate and NEFA (r values depending on sampling time), which clearly shows the metabolic responses to concentrate supplementation levels in the diet.