Comparación de dos dietas en terneros de engordeDieta convencional (pienso y paja) vs. Unifeed

  1. X. Cortés 1
  2. J. Mora 1
  3. P. Oliva 1
  4. H. Morazan 1
  5. A.R. Seradj 1
  6. J. Balcells 1
  7. D. Villalba 1
  1. 1 ETSEA
Libro:
XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza
  1. Jorge Hugo Calvo Lacosta
  2. Isabel Casasús Pueyo
  3. Margalida Joy Torrens
  4. Javier Álvarez Rodríguez
  5. Luis Varona Aguado
  6. Begoña Panea Doblao
  7. Carlos Calvete Margolles
  8. Joaquim Balcells Teres

Editorial: Asociación Interprofesional para el Desarrollo Agrario

ISBN: 978-84-695-7684-7,  978-84-695-7684-7

Año de publicación: 2013

Volumen: 1

Páginas: 61-63

Congreso: Jornadas sobre producción animal (15. 2013. Zaragoza)

Tipo: Aportación congreso

DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Resumen

A Total Mixed Ration (TMR, 60 % forage; 23 % NDF) has been compared with Control diet (commercial concentrate (93%) and straw (7%)). Twenty-five beef heifers weaned at 8 months (12 Control, 13 TMR) were controlled during a 120-day fattening period. Intake was controlled daily by diet. Individual weight was recorded every 21 days. At the same control days blood samples were taken and urea, glucose and non-esterified fatty acids (NEFA) were analysed. Carcass quality and meat color and composition were recorded at slaughter time. Intake was higher in the Control diet, and combined with a low protein level in the TMR (12% vs. 17%) produced a lower average daily gain (20%, p<0.05) in TMR. Glucose and NEFA levels indicated that TMR ration was adjusted for energy requirements of the animals but urea levels showed that TMR diet had some limitation in protein whereas Control diet had an excess. No relevant differences where detected in carcass quality except a slightly lower carcass fat. No differences in muscle or fat colour were detected. The use of on-farm forages in the TMR diet reduces the feeding cost by 43 % compared with the costs of the control diet.

Fuente de los datos: Dialnet