Effect of energy and protein level in complete feed used elephant grass (Pennisetum purpureum, Schum.) and maize stover (Zea mays. L) silage on nutrient content, total digestible nutrient, and in vitro degradation

Faculty of Animal Science, University of Brawijaya, Jl. Veteran, Malang 65145, Indonesia

^* Corresponding author: hartutik@ub.ac.id

Abstract

The purpose of this research was to determine of ideal ration of energy and protein in complete feed used elephant grass and maize stover silage. The materials were use elephant grass, maize stover silage with 10% molasses and Lactobacillus plantarum 1x106 CFU/g and concentrates. The method used experimental laboratory, the data of nutrient and TDN content using descriptive analysis. In vitro degradation value was analysed by Analysis of Variance from a factorial randomized block design and followed by Duncan’s Multiple Range Test. The complete feed was use 12.5% elephant grass + 37.5% maize stover silage + 50% concentrates with consist of energy level (E1 =12.5, E2 =13.5, E3 =14.5 MJ/kg DM) and protein level (P1 =10.5, P2= 13.5, P3= 16.5%). The results showed that in vitro DM and OM degradation respectively energy or protein level showed has significantly (P<0.01), while the interaction did not significant (P>0.05). The best treatment is E3P3 with energy 14.5 MJ/kg and protein 16.5% on nutrient content DM 92,51%., OM 90,33%., CP 16.57%, CF 19.29%, EE 1.77%, NFE 53.70%, TDN content 67.14%, In vitro DM degradation 66.14 % and in vitro OM degradation 70.01%.