Department of Food Science, University of Otago PO Box 56, Dunedin 9054, New Zealand.
Department of Wine, Food and Molecular Biosciences, Lincoln University, PO Box 85084, Lincoln 7647, New Zealand.
Nutrients. 2020 Feb 25;12(3):594. doi: 10.3390/nu12030594.
The aim of this study was to investigate the effect of either sheep or cow milk supplementation to a low calcium and phosphorus diet on growth and organ mineral distribution in weanling rats. Rats were fed diets consisting of either a control chow, a 50% reduced calcium and phosphorous chow (low Ca/P), low Ca/P and sheep milk, or low Ca/P and cow milk diet for 28 days. Food intake of the rats, the growth rate of the rats, and the concentrations of minerals in the soft organs and serum were determined. Rats fed the low Ca/P diet alone had lower weight gain than rats consuming either of the milk-supplemented diets ( < 0.05). Both sheep milk and cow milk supplementation overcame the effects of consuming a diet restricted in calcium and phosphorus but the sheep milk was effective at a significantly lower level of milk intake ( < 0.05). Significant differences ( < 0.05) in essential and trace mineral concentrations due to milk type were observed in the kidney, spleen, and liver. For non-essential minerals, significant differences ( < 0.05), related to diet, were observed in all organs for arsenic, cesium, rubidium, and strontium concentrations.
本研究旨在探讨在低钙和低磷饮食中补充绵羊奶或牛奶对断奶大鼠生长和器官矿物质分布的影响。大鼠喂食以下饮食 28 天：对照饲料、钙磷含量减少 50%的饲料（低钙/磷）、低钙/磷和绵羊奶、或低钙/磷和牛奶。测定大鼠的食物摄入量、生长速度、软器官和血清中的矿物质浓度。单独喂食低钙/磷饮食的大鼠体重增加低于喂食补充奶的大鼠（<0.05）。绵羊奶和牛奶补充均可克服钙和磷摄入受限饮食的影响，但绵羊奶在较低的奶摄入量水平上就有效（<0.05）。由于奶的类型，肾脏、脾脏和肝脏中的必需和痕量矿物质浓度存在显著差异（<0.05）。对于非必需矿物质，与饮食相关，所有器官中的砷、铯、铷和锶浓度都存在显著差异（<0.05）。
