Digestibility comparisons were made using Korean native cattle, native goat, sheep, rabbit, pig and poultry with two different roughages, two different concentrates and soybean oil cake. a. Digestibility difference for roughages There were no significant differences in digestion coefficients, D.C.P. and T.D.N, content, except N.F.E in the case of good quality hay, and crude protein and crude fat in the case of poor quality hay between Korean native cattle, native goat and sheep. However, there were significant differences between the animals mentioned above and rabbit in all digestion coefficients, D.C.P. and T.D.N. content, except crude protein and crude fat. b. Digestibility difference for concentrates There were significant differences in digestion coefficients and digestible nutrients between the animal used. Digestibility of sheep and native goat, and pig and poultry showed similar trend. Rabbit Showed the highest T.D.N. content in the case of corn. However, this superiority in digestibility disappeared in the case of wheat bran. c. Digestibility difference for soybean oil cake Significant differences in digestibility of crude fat, N.F.E. crude fiber, and T.D.N. content were found between ruminants and monogastric animals. No significant differences were observed in digestibility of crude protein and D.C.P. content between the animals used.