Effect of urea-cassava waste and protected soybean meal supplementation on dry matter, crude fiber, and crude protein intake of ram

Abstract

The purpose of this research is to measure the effect of urea-cassava waste and
Leucaena leucocephala tannin extract protected soybean meal supplementation in ration on dry
matter (DM), crude fiber (CF), and crude protein (CP) intake of ram and to determine the best
supplementation level based on these three variables. This research was held from October 18 th ,
2017 until January 10 th , 2018 at Experimental Farm and Animal Feed and Nutrition Laboratory,
Faculty of Animal Science, Jenderal Soedirman University, Purwokerto. The material used in
this research were ± 12 months old ram (initial weight 23-25 kg) as many as 15 heads, control
ration (rice straw: concentrate = 30:70), supplement (urea-cassava waste:protected soybean
meal = 54 : 46%), and experimental cage. The method of this research was in vivo experiment
with completely randomized design followed by orthogonal polynomial if the treatment had
significant effect. Treatments tested in this research was the percentage of supplementation that
consist of R 0 (control), 1 (R 0 + 5% DM supplement), R 2 (R 0 +10% DM supplement), R 3 (R 0 +15%
DM supplement), and R 4 (R 0 +20% DM supplement) with three replications. The result of
ANOVA showed that supplementation of urea cassava waste and protected soybean meal in
male sheep ration had no significant effect (P>0,05) on male sheep DM and CF intake but had
very significant effect (P<0,01) on CP intake with linear shaped curve (Y=113,005 + 1,86X).
The conclusion of this research is supplementation of urea-cassava waste and protected
soybean meal as much as 20% DM in ration did not affect DM and CF intake and could
optimize CP intake of ram.