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.