Abstract
Jackbean (Canavalis ensiformis) is a tropical legume which has shown potential as source of forage and seed. The seed contains up to 32 % CP. But as with other tropical legumes, the raw seed contains toxic substances. A 42-day feeding trial was conducted to compare the effect of raw and cooked jackbean on the performance of weaner rabbits. Raw Jackbean seeds were dried and milled and incorporated at 10 and 20 % dietary levels respectively while another batch was cooked for 40 minutes, dried, ground and incorporated also at 10 and 20 % dietary level respectively and each diet fed to 8 rabbits. At dietary level of 20 %, raw jackbean significantly (P<0.05) depressed performance of rabbits (ADG 16.2g/d vs 20.5 for the control). Cooking for 40 minutes improved the nutritive value of jackbean for weaner rabbits up to 20 % dietary level (ADG of 26.7 and 21.9 g/day for 10% and 20% levels respectively).
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