The role of inoculum (rumen liquor - RL vs faeces - FA) from cow or buffalo with respect to feed evaluation using in vitro gas systems was estimated in a trial using 8 substrates. The substrate influenced significantly all fermentation characteristics; with each inoculum the substrates were ranked according the same trends for organic matter digestibility (dOM) and cumulative gas volume per gram of OM incubated (OMCV). The animal species affected dOM and OMCV which were significantly higher in buffalo and cow, respectively. Buffalo showed significantly higher values of acetic, propionic, butyric acids and total VFA, while isobutyric, isovaleric and valeric acids were higher in cow. The inocula influenced the fermentation characteristics in both species: while in cow all parameters, except OMCV, were higher with FA than RL, in buffalo dOM, OMCV, acetic and total VFAs were higher with RL. The results confirmed the lower cellulolytic activity of FA micropopulation than RL one. All the data suggest that, while there may be scope for faeces to replace rumen fluid as inoculum for some end-point measures, is not possible to replace cow inocula to buffalo.

Effect of ruminant species (bovine v sbuffalo) and source of inoculum (rumen liquor vs faeces) on in vitro fermentation / Cutrignelli, MONICA ISABELLA; D'Urso, S.; Tudisco, Raffaella; Grossi, M.; Piccolo, Vincenzo. - In: ITALIAN JOURNAL OF ANIMAL SCIENCE. - ISSN 1594-4077. - ELETTRONICO. - 6:Suppl. 1(2007), pp. 295-297.

Effect of ruminant species (bovine v sbuffalo) and source of inoculum (rumen liquor vs faeces) on in vitro fermentation

CUTRIGNELLI, MONICA ISABELLA
;
S. D'URSO;TUDISCO, RAFFAELLA;M. GROSSI;PICCOLO, VINCENZO
2007

Abstract

The role of inoculum (rumen liquor - RL vs faeces - FA) from cow or buffalo with respect to feed evaluation using in vitro gas systems was estimated in a trial using 8 substrates. The substrate influenced significantly all fermentation characteristics; with each inoculum the substrates were ranked according the same trends for organic matter digestibility (dOM) and cumulative gas volume per gram of OM incubated (OMCV). The animal species affected dOM and OMCV which were significantly higher in buffalo and cow, respectively. Buffalo showed significantly higher values of acetic, propionic, butyric acids and total VFA, while isobutyric, isovaleric and valeric acids were higher in cow. The inocula influenced the fermentation characteristics in both species: while in cow all parameters, except OMCV, were higher with FA than RL, in buffalo dOM, OMCV, acetic and total VFAs were higher with RL. The results confirmed the lower cellulolytic activity of FA micropopulation than RL one. All the data suggest that, while there may be scope for faeces to replace rumen fluid as inoculum for some end-point measures, is not possible to replace cow inocula to buffalo.
2007
Effect of ruminant species (bovine v sbuffalo) and source of inoculum (rumen liquor vs faeces) on in vitro fermentation / Cutrignelli, MONICA ISABELLA; D'Urso, S.; Tudisco, Raffaella; Grossi, M.; Piccolo, Vincenzo. - In: ITALIAN JOURNAL OF ANIMAL SCIENCE. - ISSN 1594-4077. - ELETTRONICO. - 6:Suppl. 1(2007), pp. 295-297.
File in questo prodotto:
File Dimensione Formato  
Cutrignelli et al 2007 IJAS.pdf

solo utenti autorizzati

Tipologia: Documento in Post-print
Licenza: Accesso privato/ristretto
Dimensione 283.99 kB
Formato Adobe PDF
283.99 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/201285
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact