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Titolo:
Estimate of methane production from rumen fermentation
Autore:
Rossi, F; Vecchia, P; Masoero, F;
Indirizzi:
Univ Cattolica Sacro Cuore, Fac Agr, Ist Sci Alimenti & Nutr, I-29100 Piacenza, Italy Univ Cattolica Sacro Cuore Piacenza Italy I-29100 -29100 Piacenza, Italy Ctr Ric Prod Anim, Reggio Emilia, Italy Ctr Ric Prod Anim Reggio Emilia Italy c Prod Anim, Reggio Emilia, Italy
Titolo Testata:
NUTRIENT CYCLING IN AGROECOSYSTEMS
fascicolo: 1-3, volume: 60, anno: 2001,
pagine: 89 - 92
SICI:
1385-1314(2001)60:1-3<89:EOMPFR>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATTLE;
Keywords:
in vitro; CH4 production; rumen; cow;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Rossi, F Univ Cattolica Sacro Cuore, Fac Agr, Ist Sci Alimenti & Nutr, ViaEmilia Parmense 84, I-29100 Piacenza, Italy Univ Cattolica Sacro Cuore ViaEmilia Parmense 84 Piacenza Italy I-29100
Citazione:
F. Rossi et al., "Estimate of methane production from rumen fermentation", NUTR CYCL A, 60(1-3), 2001, pp. 89-92

Abstract

A method for the assessment of CH4 emission from dairy cows, based on in vitro volatile fatty acids (VFA) production, is described. 15 energy rich feedstuffs, 12 protein feedstuffs and 15 forages were in vitro fermented using rumen fluid as inoculum. Methane production for each feedstuff was calculated from net concentration of volatile fatty acids after 24 hours of fermentation according to the following stoechiometry: Glucose + 2 H2O --> 2 acetate + 2 CO2 + 4 H-2; Glucose + 2 H-2 --> 2 propionate + 2 H2O ; Glucose --> 1 butyrate + 2 CO2 + 2 H-2; CO2 + 4 H-2 --> CH4 + 2 H2O and taking in account the 'dilution rate' of feedstuffs, estimated according to the Cornell University model. These data were used to estimate the CH4 production in cows (live weight 650 kg, annual milk production:7550 kg, fat content 3.8%). Calculated annual methane emissions based on in vitro trials were: 182.74 kg CH4 /cow or 137.05 kg C-CH4 /cow (diet with corn silage); 182.56 kg CH4 /cow or 136.92 kg C-CH4/cow (diet without corn silage). If compared with estimastes obtained from IPPC (1996) detailed methodology, the above estimatesis 35% higher. A critical evaluation of reliability of in vitro data is given.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 09:22:09