The comparative digestibility of palm kernel cake, extracted palm kernel meal and undecorticated cottonseed cake.

Abstract
The interest aroused recently in the utilisation as feeding-stuffs of the residual cake or meal remaining from the extraction of oil from palm kernels has directed attention to the scantiness of our information as to the digestibility of these products. The average digestion-coefficients given in the commonly-used tables of Kellner are based in each case upon only three experiments with two different consignments of material, and showing in certain particulars a very wide range of variation in the individual results. With one exception, where an ox was used, these experiments were carried out with sheep and all date from the ’seventies of last century (1, 2).