Modificaciones técnicas en fermentadores de flujo continuo: Efectos sobre la población de protozoos y la fermentación ruminal

I. Cabeza Luna; María Dolores Carro; A. Muñoz Martínez; Eduarda Molina Alcaide

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Modificaciones técnicas en fermentadores de flujo continuo: Efectos sobre la población de protozoos y la fermentación ruminal

I. Cabeza Luna ^[1] ; M.D. Carro ^[2] ; A. Muñoz Martínez ^[1] ; E. Molina Alcaide ^[1]
1. [1] European Telecommunications Standards Institute
  
  European Telecommunications Standards Institute
  
  Arrondissement de Grasse, Francia
2. [2] Universidad Politécnica de Madrid
  
  Universidad Politécnica de Madrid
  
  Madrid, España
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.), Joaquín Balcells Teres (aut.), Vol. 2, 2013, ISBN 978-84-695-7684-7, págs. 848-850
Idioma: español
Títulos paralelos:
- Technical modifications in continuous culture fermenters: Effects on protozoa populations and fermentation
Enlaces
- Texto Completo Libro 1 (pdf) 2 (pdf)
Resumen
- The objective of this work was to study the effect of technical modifications (sponge and filters) in continuous-culture fermenters on the number of protozoa and ruminal fermentation parameters. The effect of the fermentation time was studied as well. Six fermenters fed a 50:50 alfalfa hay:concentrate diet, inoculated with rumen liquor from sheep fed the same diet, were used in two incubation runs of 14 days each. Protozoa numbers of both Entodinia and Holotricha genera and concentrations of VFA and ammonia were determined on days 2, 6, 10 and 14 after inoculation. No effects (P>0.10) of technical modifications were observed either in protozoa numbers or fermentation parameters, although on day 14 protozoa numbers in fermenters provided with sponge and filters were 1.7 and 2.1 times, respectively, higher than those in control fermenters. On the contrary, incubation time affected (P<0.001) all the studied parameters. No treatment x sampling time interaction (P = 0.22 to 0.96) was observed. It is concluded that technical modifications used in this study do not allow for protozoa population maintenance in continuous-culture fermenters.