BioChem - DOS

Effects of Plants Containing Secondary Metabolites on Ruminal Methanogenesis of Sheep in vitro

Energy procedia

Rira, M.; Chentli, A.; Boufenera, S.; Bousseboua, H.

The current study was carried out to determine the effect of secondary metabolites on in vitro rumen microbial fermentation and their potential to inhibit methane (CH<SUB>4</SUB>) production involved in the global warming and greenhouse-gases. The obtained results showed that the addition of Yucca schidigera and Quillaja saponaria reduced significantly CH<SUB>4</SUB> production (P <0.05). This reduction is proportional to the concentration and it becomes superior to 60% beyond 8mg / ml of saponins. CH<SUB>4</SUB> production and total volatile fatty acid (tVFA) concentration decreased linearly (P<0.05) with increasing dose of essential oils (EO). The effect was more pronounced with Mentha pulegium. The incorporation of Acacia cyanophylla tannins source to vetch-oat hay leads to a relative decrease in CH<SUB>4</SUB> in the gas pool. Supplementation with 60% and 30% of Acacia cyanophylla resulted in 37.5% and 56.25% lower CH4, respectively. Addition of Acacia cyanophylla reduced significantly tVFA. The proportion of 60% of Acacia cyanophylla induced the highest molar proportion in propionate. The results showed that plant secondary metabolites can be used as feed additives to reduce CH<SUB>4</SUB> production and to consequently mitigate greenhouse-gases emissions.

2015

Elsevier

1876-6102

74

pp.15-24

10.1016/j.egypro.2015.07.513

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART73015485

Greenhouse-gases; methane; rumen fermentation; saponins; essential oils; tannins