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%.
Highlights
According to Rukmana [1], the nutritional content of elephant grass consists of dry matter 19.9%, crude protein 10.2%, crude fat 1.6%, crude fiber 34.2%, ash 11.7% and extracts without nitrogen 42.3%
Alternative feeds from agriculture have low levels of Water-Soluble Carbohydrate (WSC), according to [3] corn WSC levels reach 11-16%, so additional sources of soluble carbohydrates such as molasses are needed to accelerate the formation of lactic acid which is useful in fermentation
Based on the chemical composition analysis of complete feed using elephant grass, maize stover silage with different energy and protein balances, showing differences in nutritional content, it because each treatment contains more than one concentrate with different nutrients and compositions that cause different chemical composition
Summary
Forage as source of fiber is the main feed for ruminants and the fiber to be one of energy source. Utilization of feed from agriculture or plantations can be used as a solution to overcome forage supplies and as an effort to reduce environmental pollution, for example, maize stover. Leaves, flowers and young corn fruit which are generally harvested at the age of 45-65 days contain nutrients, namely, Crude Protein 12.06%, Crude Fiber 25.2%, Ca 0.28%, P 0, 23% according to Koloud et al [2]. Based on the nutritional quality of maize stover above, it is very necessary to do preservation to maintain its nutritional content as feed, in the long term by using the silage method. Alternative feeds from agriculture have low levels of Water-Soluble Carbohydrate (WSC), according to [3] corn WSC levels reach 11-16%, so additional sources of soluble carbohydrates such as molasses are needed to accelerate the formation of lactic acid which is useful in fermentation
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