Karakteristik Fermentasi Rumen In vitro dengan Penambahan Sabun Kalsium Minyak Nabati pada Buffer yang Berbeda.

Abstract

Supplementation of unsaturated fatty acid source from plant in ruminant feed is needed to improve the production and quality of beef meat. Canola oil and flaxseed oil are vegetable oils as potential sources of unsaturated fatty acid. However, to use vegetable oils as sources of unsaturated fatty acids, need to be protected to avoid biohydrogenation by rumen bacteria. The experiment was conducted in a factorial randomized block design with 2 factors and 3 blocks based on rumen sampling time. The first factor was sources of vegetable oils (canola and falxseed) and the second factor was kind of buffer ( Kajikawa and Mc.Dougall). Variables observed were pH value, N-NH3 concentration, total volatile fatty acid (VFA), dry matter and organic matter digestibility. The result showed that there was no interaction between sources of diet and buffer. Supplementation of canola and flaxseed oils protected by calcium soap at level 6% did not affect pH value, dry matter digestibility, rumen protozoa and total bacteria. The use of different buffers affected pH value, dry matter digestibility, rumen protozoa and total bacteria.