The chemical composition and in situ dry matter (DM) and organic
matter (OM)degradability of
seven different cereal crop residues were evaluated in this study. They
included the Sorghum stovers (SS) and
its threshed head residues (STH), millet stovers
(MS) and its threshed head residues (MTH), corn stover (CS), wheat (WS) and barley (BS) straws. A legume crop residue (lentil, Lens esculanta, straw; LS) was included for comparison with the
cereal crop residues. The CS was high (P < 0.05) in crude protein (CP) and acid detergent lignin (ADL) and the lowest (P <
0.05) in Neutral Detergent Fibre
(NDF) and acid detergent fibre (ADF) when compared to the amounts in SS
and MS. It was found out that LS had higher (P < 0.05) CP, ADL, ME and low
(P < 0.05) NDF and ADF than the cereal crop residues. There were differences
in digestible DM (DMD) at various incubation times both between and within the
feed samples. The DM and OM a, c fraction were highest (P < 0.05)
for LS when compared to all the cop residues evaluated. The BS and MS had the
lowest effective degradability (ED) DM at 0.02 and 0.05 (P < 0.05) rates of
passage, while the LS had the highest. The
chemical composition and degradability of different crop residuesfound in Eritrea indicate the potential the
residues have in supplementing grazing animals.
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