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IN VITRO DIGESTIBILITY AND NUTRITIONAL ASSAY OF YAM PEELS ENSILED WITH BROWSES
Abstract
This study was conducted to determine the proximate composition and in vitro digestibility of yam peels ensiled with some leaf meals as alternative feedstuffs for ruminants. Yam peels and Gmelina arborea leaves were ensiled as Treatment 1 (T1), Yam peels + Mangifera indica leaves as Treatment 2 (T2), Yam peels + Nuclea latifolia leaves as Treatment 3 (T3), Yam peels + Elaeis guineensis leaves as Treatment 4 (T4) and Yam peels + Leucaena leucocephala leaves as Treatment 5 (T5) for 28days in five plastic buckets. They were wilted for 24hours, chopped, compressed into the plastic buckets and sealed. The result showed significant differences (P<0.05) in the CP, CF and NFE percentages of the silages. CP was highest in T5 (17.88%). Potassium, iron, zinc and copper differed significantly (P<0.05). Potassium (%) was highest in T5 (0.74%). There were significant differences (P<0.05) in all the fibre fractions of the silages. The metabolisable energy (ME), organic matter digestibility (OMD) and short chain fatty acid (SCFA) of the silages differed significantly (P<0.05). ME was highest in T5 (5.85MJ/kg) and T3 (5.55MJ/kg). OMD was highest in T5 (45.46%) and lowest in T4 (39.99%), T2 (40.12%) and T1 (40.27%). SCFA was highest in T5 (0.40umol/200mgDM), T3 (0.40umol/200mgDM) and T1 (0.44umol/200mgDM). T2, T3, T4 and T5 had CP contents above 7% and can be used to feed ruminants but T5 proved superior.
