| Summary: | In vivo and in vitro digestibility studies were conducted on untreated and on 3% NaOH treated sawdust and corncob feedstuffs. Results showed that sawdust or corncob can replace 28% of other roughages in a feed mixture. Chemical end combined chemical/heat treatment improved the diqestibilties of dry matter, crude protein, crude fibre, gross energy and also the feed intake (P < 0.01). There was only a slight difference between chemical treatment and the combined chemical/heat treatment. However, there was a highly significant difference between corncob and sawdust, the former was much superior than the latter. The cost of the sawdust or corncob feed mixture was much cheaper than a mixture of 80% grass pellets and
20% maize
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