Effects of supplementing a mixed diet with echium (Echium plantagineum) oil on methanogenesis in a rumen simulation system

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Amaro, P (Author) Other; Maia, MRG (Author) FCUP; Dewhurst, RJ (Author) Other; Antonio J M Fonseca (Author) ICBAS; A. Cabrita (Author) FCUP

Journal

Title: Journal of Animal and Feed Sciences

Vol. 24

Pages: 3-10

ISSN: 1230-1388

Publisher: POLSKA AKADEMIA NAUK

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

CORDIS: Natural sciences > Agrarian Sciences > Zootechnics

FOS: Agrarian Sciences > Animal and Dairy science

Other information

Authenticus ID: P-00A-BQK

DOI: 10.22358/jafs/65647/2015

Abstract (EN): The rumen simulation technique (RUSITEC) was used to evaluate the effect of two levels of echium (Echium plantagineum) oil (EO) on methano-genesis. Treatments comprised: control (commercial total mixed ration for lactating dairy cows; positive control), control supplemented with sodium 2-bromoethanesulfonate (5 mM on a dry matter (DM) basis; negative control; BES) and control supplemented with 4% (EO4) and 8% (EO8) of echium oil (g.100(-1) g DM). Methane production and the proportion of methanogens in total rumen prokaryote 16S rDNA from effluents and solid residues were decreased by EO8. Oil supplementation did not affect total volatile fatty acid production and digestibility of DM and neutral detergent fibre, but increased propionate proportion. Despite the in vitro results suggesting that echium oil is a promising natural strategy for the mitigation of enteric methane, it is difficult to distinguish whether the observed effects are due to secondary metabolites, a particular fatty acid, or mixtures of fatty acids contained in the echium oil.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8