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Memorias de investigación
Artículos en revistas:
Effect of disodium/calcium malate or Saccharomyces cerevisiae supplementation on performance, carcass quality, ruminal parameters and blood metabolites of heifers
Año:2016
Áreas de investigación
  • Alimento para el ganado
Datos
Descripción
A total of 108 Charolaise cross heifers (214 ± 27.3 kg BW; 6.4 ± 1.1 months of age) were housed in 18 pens of six animals each and used in a 114-day feedlot study. Six pens were randomly assigned to each of the following experimental diets: Control (no supplementation), MAL: control plus 4 g of a disodium/calcium malate mixture per kg of concentrate (2.12 g of malate/kg), and YC: control plus 0.15 g of yeast culture (Saccharomyces cerevisiae CBS 493.94) per kg of concentrate (1.5 x 108 cfu/kg). The control diet consisted on wheat-barley based concentrate (32% starch, DM basis) and barley straw fed ad libitum. On days 0, 56 and 114, ruminal fluid and blood samples were obtained from each heifer 2 h after feeding by ruminocentesis and tail venipuncture, respectively. Body weight, ADFI and G:F ratio were recorded at 28, 56, 84 and 114 days. At slaughter, hot carcass weight and yield and carcass classification were determined in two heifers per pen (12 animals per dietary treatment). Supplementation with malate salts or YC did not affect (P = 0.50 to 0.95) concentrate ADFI, ADG or G:F at any time during the experiment. At slaughter, there were no differences (P = 0.67 to 0.82) in carcass weight, classification and yield among experimental groups. There were no differences (P = 0.15 to 0.96) among experimental groups on ruminal pH, concentrations of VFA, NH3-N and lactate, and plasma concentrations of glucose, urea-N and lactate. In conclusion, under the feeding and management conditions of this study, diet supplementation with malate salts or YC did not have any significant effects on ruminal parameters, blood metabolites, animal performance or carcass quality.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Animal Science
ISSN
0021-8812
Factor de impacto JCR
2,014
Información de impacto
Datos JCR del año 2015
Volumen
94
DOI
10.2527/jas2016-0616
Número de revista
10
Desde la página
4315
Hasta la página
4315
Mes
SEPTIEMBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Coral Carrasco Barco (UPM)
  • Autor: Pedro Medel (Imasde Agroalimentaria, SL)
  • Autor: Alfonso Fuentetaja (Comercial Pecuaria Segoviana, SL)
  • Autor: María José Ranilla (Universidad de León)
  • Autor: Maria Dolores Carro Travieso (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Producción Agraria
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