Abstract
The objectives of this experimental research was to determine the effect of different ensiling time of maize stover silage with molasses as additive on physical quality, pH and nutritive value. The experiment used Factorial Randomized Completely Design (RCD) of two factors (maize stover = A and maize stover + 10% molasses = B), 3 ensiling time (0, 7, 14 days) and 4 replications. The treatments consisted of (A0 = maize stover without incubation, A1 = maize stover incubated for 7 days, A2 = maize stover incubated for 14 days) and (B0 = maize stover + 10% molasses without incubation, B1 = maize stover + 10 % molasses incubated for 7 days, and B2 = maize stover + 10 % molasses incubated for 14 days). The variable was measured physical quality, pH and nutritive value. The results showed that incubation time of A and B gave significant effect on physical quality and pH silage, maize stover silage without and with 10 % molasses incubated 14 days gave the best result of physical quality and pH (A = 4.00 and B = 3.89) silage. The result showed that incubation time of A and B gave highly significant effect (P<0.01) on Dry Matter (DM) and Ether Extract (EE), however it did not give significant effect (P>0.05) on Organic Matter (OM). It can be concluded that maize stover silage with 10% molasses incubated for 14 days could increase physical quality, decreased pH and maintain nutritive value.
Highlights
The objectives of this experimental research was to determine the effect of different ensiling time of maize stover silage with molasses as additive on physical quality, pH and nutritive value
The addition of molasses as a Water Soluble Carbohydrate (WSC) can be done in making silage to support the activity of lactic acid bacteria in order to produce organic acids that are useful for lowering the pH in making silage
The experiment consisted of 6 treatments: A0 = maize stover without ensilation A1 = maize stover ensiled for 7 days A2 = maize stover ensiled for 14 days B0 = maize stover + 10% molasses without ensilation B1 = maize stover + 10 % molasses ensiled for 7 days B2 = maize stover + 10 % molasses ensiled for 14 days
Summary
The fresh maize stover samples harvested in the morning were used to prepare silage. The maize stover treated with and without molasses mixed thoroughly prior to ensiling. Commercial molasses was added in proportion 10% (fresh weight). The maize stover material was chopped into lengths of about 2 to 5 cm. 1.2 kg of both maize stover with and without molasses was placed in plastic jar (3.5 liter), the top of jar warped with plastic wrap and stored in dark place. After 7, 14 and 21 days of ensiling, representative samples were removed for further chemical analysis, pH analysis, and physical qualities following and adapted from (Mustika and Hartutik, 2021). The data on nutrient composition and pH were analyzed using analysis of variance with Factorial Completely Randomized Design. Physical quality data was analyzed by using descriptive analysis
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