The nitrogen corrected metabolizable energy (MEn) and nitrogen content of wheat, menhaden fish meal with and without solubles, and ring dried blood meal were determined. The WS-3 hard red spring wheat was grown in North Dakota (I), Oregon (II), and the Imperial Valley in California (III) and WS-1 hard red spring wheat was also grown in Oregon (IV) during the same year. The nitrogen levels of I, II, III, and IV were 3.0, 2.6, 2.3, and 2.6% on a dry matter basis. Differences occurred by location grown but not by variety. The MEn levels were 3.46, 3.47, 3.48, and 3.44 kcal/gdry matter for I, II, III, and IV. These values were 78, 79, 80, and 79% of the gross energy (GE). The nitrogen content of menhaden fish meal (MFM), 11.0%, was less (P<.05%) than that of menhaden fish meal with solubles (MFMS) which was 11.3%, dry matter basis. The determined MEn values of MFM and MFMS on a dry matter basis were 3.14 and 3.12 kcal/g of dry matter, or 67 and 68% of GE. An animal protein blend contained 11.1% nitrogen and 3.12 kcal/g of dry matter which was 68% of GE. These values were similar to those obtained for MFM and MFMS. Ring dried blood meal contained 15.8% nitrogen on a dry matter basis, indicating it contained 98.75% protein, assuming N X 6.25 equals crude protein. It contained 3.81 kcal MEn/g of dry matter which was 61% of GE.