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INTRODUCTION THE value of peanut meal as a source of protein supplement in animal feeds has been established by a number of investigators. For example, McComas et al. (1942) showed that commercial peanut meal containing 43% protein, presumably prepared by hydraulic or screw pressing, could be used for fattening steers. Similar results were reported by Jones et al. (1946). It was found by Jones and Divine (1941) that peanut meal made by the screw-press process possessed high nutritive value when fed to rats as the sole source of protein. Zucker and Zucker (1943) found that soybean, cottonseed, and peanut flours served as good sources of protein for rats, also that peanut meal was an excellent source of niacin. Arachin, one of the proteins isolated from peanut meal, was found to be an inadequate source of protein in rat diets (Jones 1941). Methionine and tryptophane when added to arachin in the . . . |
