Romsos D R, Belo P S, Bennink M R, Bergen W G, Leveille G A
J Nutr. 1976 Oct;106(10):1452-64. doi: 10.1093/jn/106.10.1452.
Six semipurified canned diets ranging in composition from 0 to 62% of energy from carbohydrate and from 20% to 48% of energy from protein were fed to female beagle dogs for 8 months. Additionally, three commercial-type diets were also fed. The effects of these diets on growth, body composition and selected blood metabolite levels in the dogs were studied. The dogs readily consumed each of the nine diets fed. The level of carbohydrate, fat or protein in the diet did not influence body weight gain during the first 16 weeks nor was nitrogen balance affected by the diets. At the end of the 32-week study, dogs fed the high-carbohydrate (62% of energy) diet contained less body fat but an equal-free mass, than did dogs fed lower-carbohydrate (20--42% of energy) diets with a similar quantity of protein. Consumption of carbohydrate-free diets did not influence postprandial levels of circulating glucose or insulin in the dogs. Plasma cholesterol levels were elevated in dogs consuming in the diets high in fat but plasma triglyceride levels were not influenced by the diets fed. Consumption of high-protein (46--48% of energy) diets elevated plasma urea nitrogen levels but had minimal influence on plasma amino acid levels. The general response of these young dogs was not markedly influenced by consumption of diets ranging from carbohydrate-free to high-carbohydrate and from adequate-protein to high-protein.
将能量组成中碳水化合物含量从0%到62%、蛋白质含量从20%到48%的六种半纯化罐装日粮喂给雌性比格犬8个月。此外，还喂了三种商业型日粮。研究了这些日粮对犬生长、身体组成和选定血液代谢物水平的影响。犬很容易接受所喂的九种日粮中的每一种。日粮中碳水化合物、脂肪或蛋白质的水平在前16周内不影响体重增加，日粮也不影响氮平衡。在32周的研究结束时，与喂食蛋白质含量相似但碳水化合物含量较低（能量的20%-42%）日粮的犬相比，喂食高碳水化合物（能量的62%）日粮的犬体脂含量较低，但去脂体重相同。食用无碳水化合物日粮不影响犬餐后循环葡萄糖或胰岛素水平。食用高脂肪日粮的犬血浆胆固醇水平升高，但血浆甘油三酯水平不受所喂日粮的影响。食用高蛋白（能量的46%-48%）日粮会提高血浆尿素氮水平，但对血浆氨基酸水平影响最小。这些幼犬的总体反应不受食用从无碳水化合物到高碳水化合物、从适量蛋白质到高蛋白日粮的显著影响。
