Moroccan Journal of Agricultural and Veterinary Sciences

Vol. 11 No. 2 (2023): (June 2023)
Animal Production and Health

Relationship between the secondary metabolites of Genista aspalathoides and in vitro production of methane in goats

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  • Oumayma HAMMAMI,
  • Houcine SELMI,
  • Ali FERCHICHI
Oumayma HAMMAMI Institut National Agronomique de Tunisie, Université de Carthage, Tunis, Tunisie
Houcine SELMI Institut Sylvo-Pastoral de Tabarka, Université de Jandouba, Tabarka, Tunisie
Ali FERCHICHI Institut National Agronomique de Tunisie, Université de Carthage, Tunis, Tunisie

Published 2023-06-15

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Abstract

Enteric fermentation is a source of greenhouse gas emissions. This research focused on the valorization of a shrubby species Genista aspalathoides from the North-West of Tunisia (Tabarka), by the determination of secondary metabolites (total phenolics, total flavonoids and condensed tannins), as well as the evaluation of the in vitro methanogenesis in goats. Phytochemical screening was determined by in vitro methods. The crude fiber content, which limits their digestibility, was low (5.79%). The crude protein content was 1.88 g/kg DM. Genista aspalathoides was rich in phenolic compounds, particularly condensed tannins (11.3 mg EC/g DM) which inhibited methane production. The high results of in vitro fermentation parameters (digestibility of organic matter, metabolizable energy and total fatty acids) show the efficiency of goats in ingesting dietary fibre.

Keywords: Enteric fermentation, Genista aspalathoide, North-West Tunisia, methane production, secondary metabolites, goats

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References