Karakteristik Minyak Nabati Terproteksi Spray Drying pada Ransum Sapi Perah terhadap Fermentabilitas dan Kecernaan In Vitro

Abstract

Penelitian ini bertujuan mengevaluasi pengaruh suplementasi minyak nabati terproteksi spray drying pada ransum sapi perah terhadap fermentabilitas dan kencernaan rumen secara in vitro. Penelitian ini menggunakan Rancangan Acak Kelompok Faktorial dengan 3 ulangan dan 4 perlakuan: P1 (kontrol tanpa perlakuan), P2 (P1+1% spray drying), P3 (P1+2% spray drying), dan P4 (P1+3% spray drying). Parameter yang diamati meliputi nilai pH, populasi protozoa total, populasi bakteri total, konsentrasi volatile fatty acid (VFA) total, konsentrasi NH3, kecernaan bahan kering (KcBK) dan organik (KcBO). Data dianalisis menggunakan ANOVA dan hasil yang berbeda nyata diuji lanjut dengan uji Tukey menggunakan Minitab 18. Hasil menunjukkan berbeda nyata (P<0.05) pada taraf suplementasi terhadap populasi protozoa total, populasi bakteri total, konsentrasi VFA total, konsentrasi NH3, KcBK, KcBO, jenis minyak berpengaruh terhadap konsentrasi VFA total serta terdapat interaksi pada konsentrasi NH3. Suplementasi minyak kanola, minyak kedelai dan minyak sawit terproteksi spray drying hingga taraf 3% menghasilkan nilai fermentabilitas dan kecernaan pada kisaran normal.

This study aims to evaluate the effect of supplementation spray drying protected vegetable oil in dairy rations on fermentability and rumen digestibility in vitro. Thisstudy used randomized block design with 3 replications and 4 treatments: P1 (control without treatment), P2 (P1+1% spray drying), P3 (P1+2% spray drying), and P4 (P1+3% spray drying). Parameters observed included pH score, total protozoa population, total bacterial population, total volatile fatty acid (VFA) concentration, NH3 concentration, dry matter digestibility (DMD) and organic matter digestibility (OMD). Data obtained were analyzed using ANOVA and significantly different results were tested further with Tukey test using Minitab 18. The results showed significantly different (P<0.05) of supplementation on the total protozoa population, total bacterial population, total VFA concentration, NH3 concentration, DMD, OMD, oil type also significantly influenced in VFA concentration and there is showed interactions results between two factors in NH3 concentartion. Supplementation of of canola oil, soybean oil and palm oil spray drying protected up to a level of 3% resulted in fermentability and digestibility values within the normal range.