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Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 7(9): 798-805
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Sri Suharti*, Isma Firliani, Mawar Mawar, Vishara Sekar, Komang Gede Wiryawan

Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University (Bogor Agricultural University) Jl. Agatis IPB Darmaga Campuss, Bogor, West Java, Indonesia 16680.

Abstract | The aim of this study was to analyze the effect of Sapindus rarak extract combined with canola/sesame oils microencapsulation on in vitro rumen microbial, fermentation characteristics and unsaturated fatty acid. The research was conducted using rumen fluid obtained  from fistulated  Ongole grade cattle. This research used randomized complete block design with 6 treatments and 5 replications. The treatments were T0 = control (forage:concentrate = 70:30), T1 = T0 + S. rarak extract 1 mg/ml, T2 = T1 + sesame oil 10%, T3= T1 + sesame oil microencapsulation 10%, T4= T1 + canola oil 10%,  T5=T1 + canola oil microencapsulation 10%. The difference in time for taking rumen fluid is used as a block/group. The result showed that the addition of  S. rarak extract 1 mg/mL  and its combination with canola oil microencapsulation significant decreased (P<0.01) protozoal population and  increased (P<0.05) bacterial population especially Anaerovibrio lipolytica, NH3-N concentration, dry matter and organic matter digestibility.  The pH value, total and proportion of VFA, CH4 production, saturated and unsaturated fatty acids  were similar among treatments. It is concluded that the combination of S.rarak extract and oils microencapsulation could modify rumen fermentation but did not affect rumen fatty acid profile.

Keywords | Rumen fermentation, Rumen microbe, Sapindus rarak extract, Oil Microencapsulation, Fatty acid profiles