PENGARUH PENAMBAHAN DAUN SEREH (Cymbopogon citratus) SEBAGAI SUMBER MINYAK ESSENSIAL PADA RANSUM TERHADAP KECERNAAN NUTRIEN DALAM RUMEN SECARA IN VITRO

• Main Authors: , INSANI HUBI ZULFA, , Asih Kurniawati, S.Pt., M.Si.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2014
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/131885/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=72395
• Institution: Universitas Gadjah Mada

This research was aimed to observe the effect of sereh leaves (Cymbopogon citratus) addition as essential oil (EO) source in diet towards rumen microbes population and ruminal nutrient digestibility in vitro. Essential oil were added 0, 25, 50,75, and 100 mg/l. Substrates for in vitro fermentation contained crude protein 9.94% and total digestible nutrient 88.5%. The treatment�s had 3 replication. Data collected were rumen microbes population, dry matter digestibility (DMD), organic matter digestibility (OMD), crude protein digestibility (CPD), and crude fiber digestibility (CFD). The collected data was analyzed by one way variance analysis. The difference between mean was tested by Duncan�s new Multiple Range Test (DMRT). The result showed the addition of sereh leaves equal to EO level as much as 25, 50, 75, and 100 mg/l decreased rumen microbes population as much as 69.19%, 79.29%, 86.36%, and 95.96% (P<0.01) respectively. Crude protein digestibility increased (P<0.01) as much as 17.64% in fermentation with EO level as much as 25 mg/l. The supplementation of sereh leaves at EO level as much as 50 mg/l and 100 mg/l decreased CPD (P<0.01) i.e. 2.52% and 29,65% respectively. Whereas, the addition of sereh leaves at EO level 50, 75, and 100 mg/l decreased OMD 9.71%, 9,14%, and 10.79% towards the control and decreased DMD (P<0.01) as much as 7.54%, 15.90%, 14.75%, 18.12% with addition of sereh leaves equal to EO level 25, 50, 75, and 100.mg/l in diet. Supplementation EO in diet didn�t affect CFD significantly. From this research, it could be concluded that addition of sereh leaves as source of EO in diet is at level 25 mg/l because it didn�t affect the CFD and OMD. Key words: Sereh leaves (Cymbopogon citratus), Essential oil (EO), In vitro digestibility