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36只SD品系纯种刚断乳健康大鼠，雌雄各半，体重50克左右，随机分为三组，分别喂饲等蛋白等热能的对照饲料、含进口奶粉、国产奶粉的饲料，4周后进行有关指标测定。结果显示，喂饲奶粉各组大鼠在体重、膳食效率、蛋自质功效比、跳台试验错误次数、游泳时间、血清总蛋白、血清锌含量等方面无明显差异。表明在摄入等蛋白等热能的情况下，两者营养价值无显著差别。
Thirty-six SD strains of pure breed weanling weanling healthy rats, male and female, weighing about 50 grams, were randomly divided into three groups, respectively, fed with protein and other heat control feed, including imported milk powder, domestic milk powder feed, After the determination of the relevant indicators. The results showed that there was no significant difference in the body weight, dietary efficiency, egg self-quality ratio, the number of error in jumping test, swimming time, serum total protein and serum zinc content in the feeding groups. That in the case of intake of protein and other thermal energy, the nutritional value of the two no significant difference.