Nutritional Responses of Tumor‐bearing Rats to Oral or Intravenous Feeding

Two experiments were conducted with male rats weighing 170 to 190 grams. In experiment 1, some nutritional parameters were determined in tumor‐bearing (TB) (Walker 256 carcinosarcoma) rats fed a 23.6% casein diet for 4 weeks after the tumor inoculation. Cumulative weight gain and food intake were less in TB rats than in nontumor‐bearing (NTB) rats. At 3 and 4 weeks after the tumor inoculation, plasma histidine, alanine, and glycine levels were...