Estimación meta-analítica de la reducción de coliformes totales en canales de bovino debido al enfriamiento

• U. Gonzales Barron ^[1] ; V. Cadavez ^[1] ; F. Butler ^[2]
  1. [1] Instituto Politécnico de Bragança

     Instituto Politécnico de Bragança

     Bragança (Sé), Portugal

     
  2. [2] University College Dublin

     University College Dublin

     Irlanda

     
• 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. 646-648
• Idioma: español
• Títulos paralelos:
  • Meta-analytical estimation of the effect of chilling on the total coliforms of bovine carcasses
• Enlaces
  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • The objective of this work was to use meta-analysis to quantify the overall effect of conventional chilling of Irish beef carcasses on the concentration of total coliforms. Nine independent studies concerning the efect of conventional chilling of Irish beef carcasses on the concentration of total coliforms were used. In each study (slaughterhouse), swabs of 10 000 cm2 from one side of the carcass were obtained before carcasses chilling and the same procedure was applied on the other side of the carcass after 24 h of chilling, and the total coliforms (log CFU/cm2) were quantified. To account for the variability or heterogeneity (2=0.288; p<0.001) in the effect size (measured by the nine primary studies), a randomeffects model was preferred. This model confirmed that chilling reduces (p<0.001) the viability of coliforms in 1 log CFU/cm2 (95% CI: 1.5 - 0.70 log). Next, study characteristics could be extracted from the primary studies to further explain the high between-study heterogeneity.