A.D. Kartika, Kusmartono, Mashudi, P.H. Ndaru
This study aimed to evaluate the effects of using different types and levels of preservatives on chemical composition and in vitro gas production (IVGP) of cassava peel silage. The following treatments were applied: T0: cassava peel without preservative; T1: T0 + molasses 2%; T2: T0 + molasses 4%; T3: T0 + rice bran 2%; T4: T0 + rice bran 4%; T5: T0 + cassava meal 2% and T6:T0 + cassava meal 4% with 3 replications arranged in a completely randomized design (CRD) for the chemical composition variable and randomized block design (RBD) for IVGP variable. The results showed that treatments significantly affected (P<0.01) DM, OM, and EE contents, significantly affected (P<0,05) IVGP but did not significantly affect CP, CF contents, potential, and rate of gas production (P>0.05). Treatment T5 seems to have higher values of IVGP and ME (159.1±7.19 ml/500 mgDM; 11.1±0.36MJ/kg DM, respectively) compared to the other treatments that might have related to a higher OM available for in vitro fermentation process. It can be concluded that the use of cassava meal at 2% level can be considered as the most ideal preservative to use to produce a high-quality cassava peel silage. © Published under licence by IOP Publishing Ltd.
Faculty of Animal Science, Universitas Brawijaya, East Java, Malang, Indonesia
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