TESTING OF THE NUTRITIVE-VALUE OF WINGED BEAN PSOPHOCARPUS-TETRAGONOLOBUS (L) DC OIL FOR BROILERS

In the oil of seeds of the tropical legume Psophocarpus tetragonolobus (L.) DC (winged bean) of Vietnamese provenance the content of higher fatty acids was determined. Compared with soybean and peanut oils, win ged bean oil contains more acids with a long carbon chain C20-C24. In order to verify the nutritive values of winged bean oil, an experiment on broilers was carried out. An addition of 50g/kg oil into the BR-2 feed mixture enhanced the body mass gains significantly (P < 0.05) in comparison with the control. The effect of winged bean oil on weight g ain however, was not so significant as of fodder fat (P < 0.01). The d ifferences between the above-mentioned treatments were still statistic ally non significant. Furthermore, the most convenient conditions of e xtraction of the oil from seeds, the solvent/cake ratio and the extrac tion time were verified.