Abstract
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.
Highlights
In view of the ever-increasing global population, increased income-purchasing power, and urbanization trend, it is predicted that, until 2050, the global demand for meat and milk will increase by 73% and 58%, respectively, compared to the 2010 levels (Beauchemin, 2020)
Producers are in need of cost-effective methods that would reduce greenhouse gas emissions while meeting the demand for high quality, safe and affordable food produced from healthy animals
Ruminants offer a unique advantage of being able to feed on nonarable meadows and pastures yet, 2-12% of the gross amount of energy they consume is converted to CH4 during ruminal digestion (Onel et al, 2020)
Summary
In view of the ever-increasing global population, increased income-purchasing power, and urbanization trend, it is predicted that, until 2050, the global demand for meat and milk will increase by 73% and 58%, respectively, compared to the 2010 levels (Beauchemin, 2020). Global greenhouse gas emissions caused by ruminant production (animals, manure, feed production and deforestation for land clearing) are estimated to account for 14.5% of total anthropogenic emissions (Gerber et al, 2013, Schultz et al, 2020). In this context, producers are in need of cost-effective methods that would reduce greenhouse gas emissions while meeting the demand for high quality, safe and affordable food produced from healthy animals. This study was designed in view of the possibility of agarwood (Aquilaria agallocha Roxb.) volatile oil altering ruminal fluid parameters and in vitro digestion owing to the active substances it contains
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
