Para-rubber (Hevea brasiliensis) seed and its products were subjected to different methods of processing such as decortication, oil extraction, autoclaving and fermentation and assayed for their chemical composition and nutritional value. Pea nut oil meal and yellow maize were also assayed similarly for comparison. Decortication reduced the crude fibre content, with proportionate increases in other nutrients and energy value. Autoclaving and fermentation failed to improve the nutritional value of undecorticated rubbre seed oil meal. Crude protein content of rubber seed and its products ranged from 11.5;in rubber seeds to 27.4;in commercial decorticated rubber seed oil meal. The oil content of the rubber seeds and kernels was 24.0 and 40.1;respectively. The available carbohydrate content of rubber seed and its products ranged from 6.3;in rubber seeds to 15.9;in commercial decorticated rubber seed oil meal; these values may be compared with the value of 59.0;for yellow maize. Both undecorticated and decorticated rubber seed oil meals appeared to be deficient in sulphur-containing amino acids and lysine. The gross protein value of undecorticated and decorticated rubber seed oil meals and peanut oil meal was estimayed to be 43.6, 47.0 and 49.7 respectively. Both undecorticated and decorticated rubber seed oils were rich in oleic and stearic acids, but relatively poor in poly-unsaturated fatty acids, compared with peanut oil. Determined apparent ME (AME) values were (kcal/g dry matter): rubber seeds, 2.91; kernels,4.70; undecorticated rubber seed oil meal, 2.00; and decorticated rubber seed oil meal, 2.80. The true ME (TME) values were 3.24, 51.6, 2.22 and 3.00 kcal/g dry matter, respectively. In general, TME values were about 10;higher than the AME values.