| Popis: |
Methane (CH4), a major greenhouse gas produced during ruminal fermentation, has a significant ratio in both the economic and ecological impact of global climate change. Literature reports have been published, which suggest that dietary supplementation with plant volatile oils reduces methane emissions in ruminant production. This in vitro study was aimed at investigating the effects of agarwood (Aquilaria agallocha Roxb.) volatile oil on in vitro ruminal gas production, methane emission, ruminal organic acids and protozoa counts of total mixed ration (TMR) of dairy cattle. Component analyses were performed for agarwood (Aquilaria agallocha Roxb.) volatile oil. The effects of agarwood volatile oil, added to ruminal fluid at levels of 5, 10 and 15 µL/0.2 g dry matter (DM) (Groups A0, A5, A10 and A15), on in vitro ruminal digestion were determined based on in vitro gas production. In conclusion, it was ascertained that the addition of 10 µL of Aquilaria agallocha Roxb. volatile oil to ruminal fluid positively affected in vitro ruminal gas production and digestion parameters of total mixed ration (TMR) of dairy cattle, and showed an antimethanogenic effect. |
