The waste of laying hen, Korean native cow, dairy cow, and swine were collected at the Livestock Experiment Station, dried at 60℃ in drying oven, and analyzed for investigating their nutrient composition. The results obtained were as follows: 1. The crude protein contents in layers waste were 21 to 33% of air dry matter, which were 38 to 94% higher than those in rations the layers consumed. However, the levels in feces of Korean native cow, dairy cow and swine were similar to the value it their concentrate rations. 2. The nitrogen-free extract contents in poultry or animal waste were considerably low. The values in layers corresponded to 40% of those in their rations. The relative value of waste to concentrate ration for other animals were 65%. 3. The poultry or animal waste contained much amount of non-protein nitrogenous compound corresponding to about 40% of total crude protein. 4. The crude ash contents in layers manure were 16 to 30% of air dry matter and those in feces of Korean nabs a cow, dairy cow and/or swine were 10 to 19%. 5. Both poultry and animal waste were characterized to contain high levels of potassium and iron. 6. Viewing the amino acid contents in poultry or animal waste it was shown that they contained high levels of methionine, lysine, aspartic acid, threonine, glutamic acid. glycinc and leucine. 7. The amino acids contents in waste of layers, Korean native cow and dairy cow were similar to or lower than those in wheat bran. However, those in swine manure were similar to or higher than those in wheat bran.