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There are various types of agricultural residues that are not useful to man and thus constitute a nuisance to the environment. About 147.2 million metric tons of fiber sources are found in the world while the global output of wheat straw residue and rice straw were estimated at 709.2 and 673.3 million metric tons respectively in the 1990u2019s. Additionally the total global output of non wood fibers was put at about 2.5 million metric tons. About 61 million metric tons of crop residue available in Nigeria, out of these only 21% are consumed by sheep and goat and only if they are processed into ac
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