Cristin-resultat-ID: 1466667
Sist endret: 24. januar 2018, 14:20
NVI-rapporteringsår: 2017
Resultat
Vitenskapelig artikkel
2017

In vitro ruminal fermentation and methane production of different seaweed species

Bidragsytere:
  • Eduarda Molina-Alcaide
  • Maria Dolores Carro
  • Michael Roleda
  • Martin Riis Weisbjerg
  • Vibeke Lind og
  • Margarita Novoa-Garrido

Tidsskrift

Animal Feed Science and Technology
ISSN 0377-8401
e-ISSN 1873-2216
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2017
Volum: 228
Sider: 1 - 12
Open Access

Importkilder

Scopus-ID: 2-s2.0-85019468180

Beskrivelse Beskrivelse

Tittel

In vitro ruminal fermentation and methane production of different seaweed species

Sammendrag

Seaweeds have potentials as alternative feed for ruminants, but there is a limited knowledge on their nutritive value. Seven seaweed species collected along the coast above the Arctic circle of Norway, both in spring and autumn, were assessed for nutrients and total polyphenols (TEP) content, gas production kinetics and in vitro rumen fermentation in batch cultures of ruminal microorganisms. The seaweeds were three red species (Mastocarpus stellatus, Palmaria palmata and Porphyra sp.), three brown species (Alaria esculenta, Laminaria digitata and Pelvetia canaliculata) and one green species (Acrosiphonia sp.). Additionally, the abundance and diversity of total bacteria, protozoa and archaea in the cultures with the three red seaweeds collected in spring were analyzed by quantitative PCR and PCR-DGGE, respectively. The crude protein (CP) content varied widely. Pelvetia had the greatest (P  0.05) among the other seaweeds in VFA production, but Porphyra sp. had the second highest methane production (P  0.05) by either seaweed species or the collection season. Higher final pH (P  0.05) in the abundance or the diversity of total bacteria, protozoa and archaea. In the PCR-DGGE analysis, samples were separated by the incubation run for all microbial populations analyzed, but not by seaweed species. The results indicate that seaweed species differ markedly in their in vitro rumen degradation, and that samples collected in autumn had lower rumen degradability than those collected in spring.

Bidragsytere

Eduarda Molina-Alcaide

  • Tilknyttet:
    Forfatter
    ved Consejo Superior de Investigaciones Cientificas

Maria Dolores Carro

  • Tilknyttet:
    Forfatter
    ved Universidad Politécnica de Madrid

Michael Roleda

  • Tilknyttet:
    Forfatter
    ved Divisjon for bioteknologi og plantehelse ved Norsk institutt for bioøkonomi

Martin Riis Weisbjerg

  • Tilknyttet:
    Forfatter
    ved Aarhus Universitet

Vibeke Lind

  • Tilknyttet:
    Forfatter
    ved Divisjon for matproduksjon og samfunn ved Norsk institutt for bioøkonomi
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