| Penulis/Author |
WULANDARI (1); Prof. Dr. Ir. Budi Prasetyo Widyobroto, DESS., DEA., IPU., ASEAN Eng. (2); Ir. Cuk Tri Noviandi, S.Pt., M.Anim.St., Ph.D., IPM., ASEAN Eng. (3) ; Prof. Dr. Ir. Ali Agus, DAA., DEA., IPU., ASEAN Eng. (4) |
| Abstrak/Abstract |
Excessive degradation high protein feed in the rumen can reduce nutrient utilization
efficiency of feed in post rumen. Protected feed is expected to increase the undegraded proteins
that enter and absorbed in the intestine. In vitro study was conducted to determine whether the
protected feed can reduce rumen degradability as well as improving post-rumen degradability
of feed. The protected feed used in this study was soybean meal and crude palm oil mixture (4:
1), added with 0.3% Agromix. Independent sample t-test was used to compare 2 treatments
(T1/control = commercial ration; T2 = commercial ration with 4.4% protected feed
substitution). Each dietary treatment was done in 6 replications. Both dietary treatments were
tested for their digestibility using a 2-stage in vitro technique. Results showed that pH of
rumen did not change. Compared to the T1, T2 showed lower (P<0.05) digestibility of dry
matter (DMD), organic matter (OMD), and crude protein (CPD) in the rumen. In the post
rumen, T2 showed greater (P<0.05) DMD, OMD and CPD than T1. It concluded that protected
feed substitution effectively decreases digestibility in the rumen and increases post-rumen
digestibility, imply that protected feed substitution can improve the nutrient utilization in the
post rumen. |
