S U M M A R YThe effects of replacing 0, 25, 50 or 100 % of dietary palm oil (5 %) with oil of Thevetia peruviana was investigated using broiler chicks 0-3 weeks old.Increasing the content of thevetia oil in the diet reduced average daily feed intake and weight gain ( P < 0 0 5 ) and decreased protein and fibre retention (P < 005) and fat retention (P < 001). However, there was no significant effect on feed: gain ratio or mortality rate. It is concluded that there is a need for further processing of thevetia oil before it can be used effectively as an ingredient in broiler feed.
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