El-Shafei M M, Al-Amoudy N S, Said A K
Nutrition Institute, Ministry of Health, Cairo, Egypt.
Nahrung. 1988;32(6):559-64. doi: 10.1002/food.19880320613.
Five different brands of dry milk and freeze dried milk were used in rat feeding trials to study their nutritive value and to assess the effect of the drying process on their nutritive value by using growth response, weight gain, food efficiency and relative nutritive value (RNV). Brand I milk gave better growth response, weight gain and food efficiency than any other dry milk studied, while brand V gave the least values. Freeze dried milk gave better growth response, weight gain and food efficiency than brand I milk. Using Slope-ratio assay, freeze dried milk gave the best RNV compared to all dry milks tested on the basis of the two response parameters used, weight gain and moisture gain.
在大鼠喂养试验中使用了五种不同品牌的干奶粉和冻干奶粉，通过生长反应、体重增加、食物效率和相对营养价值（RNV）来研究它们的营养价值，并评估干燥过程对其营养价值的影响。品牌I奶粉比所研究的任何其他干奶粉都具有更好的生长反应、体重增加和食物效率，而品牌V的数值最低。冻干奶粉比品牌I奶粉具有更好的生长反应、体重增加和食物效率。使用斜率比测定法，基于所使用的两个反应参数——体重增加和水分增加，与所有测试的干奶粉相比，冻干奶粉的相对营养价值最佳。
