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Three experiments were conducted to evaluate effects of supplemental protein vs energy level on dormant forage intake and utilization. In Exp. 1, 16 ruminally cannulated steers were blocked by weight(More)
We used major histocompatibility complex class II antigen-deficient transgenic mice to show that in vitro natural killer cell cytotoxicity and T-cell activation by staphylococcal exotoxins(More)
We showed previously that natural killer (NK) cell activity is significantly greater in elderly men supplemented with beta-carotene than in those taking placebo. In an attempt to determine the(More)