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Paper ID: 209

Potential Effect of Some Essential Oils on Rumen Methane Reduction and Digestibility by In Vitro Incubation Technique

M N Rofiq1*, W Negara1, S Martono1, R A Gopar1 and S Sandi2

1Center of Agricultural Production Technology- Agency for Assessment and Application of Technology (BPPT) – Indonesia

2University of Sriwijaya, Palembang, South Sumatera, Indonesia


Since excessive use of in-feed antibiotics, hormones, and some chemical feed supplements can potentially affect health risks and environmental problems, organic feed supplement is an alternative save material. Organic material such as essential oils (EO) is potential for feed additive in the livestock industry because of their main activity as rumen manipulator. Their potential as rumen manipulators has not enough for type and doses of essential oils experiment. Therefore, The objective of this study was to evaluate 6 essential oils/EO’s (garlic/, thyme, clove, orange peel, mint and cinnamon) with different doses (100, 200 and 300 ppm) on in vitro rumen methane reduction and  in vitro digestibility using in vitro gas production technique.The experiment resulted highest level in in-vitro methane reduction potential (MRP,%) 72.83% at orange peel oils 300 ppm after 6 h incubation, while using clove oils 300 ppm had highest in vitro true digestibility of dry matter (IVTDDM) 81.41% after 30 hour incubation. Using Cinnamon oils had high value both of MRP level and IVTDDM (48.91 and 79,12 %). In Conclusion, all essentials oils reduced in vitro rumen methane production at 6 h incubation compared to control at 300 ppm and there was no negative effect on In Vitro Digestibility

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