These preparations, skimmed milk powder, active ionic calcium powder and basic food (low calcium meal) were fed to 6 groups of weanling rats for 30 days, and 3 days calcium metabolism tests were done.
用三种对虾钙、脱脂奶粉、活性离子钙配制的饲料及基础低钙饲料，喂养6组大鼠30天，并做3天代谢试验。
Objective To study the effect of lead on the calcium absorption and bone development in weanling rats.
目的研究铅对大鼠钙的吸收和骨骼生长的影响。
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