求翻译：为了摸清鹌鹑蛋孵化过程中钙和磷的变化规律，本试验采用国标法分别对胚龄为0d、2d、4d、6d、8d、10d、12d、14d、16d的鹌鹑胚胎蛋中钙和磷含量进行测定。试验结果表明：钙和磷呈一定规律性变化，孵化期间蛋白质含量呈增加趋势，孵化前期蛋白质含量增加幅度较小，6～16d胚龄时增加幅度较大，其含量维持在一个较高水平，与鲜鹌鹑蛋相比，整个孵化过程中蛋白质含量提高了25.80%。而碳水化合物呈下降趋势，孵化前期，碳水化合物含量下降幅度较小，孵化6d后下降幅度显著增大，整个孵化过程碳水化合物含量减少了54.55%。因此，鹌鹑蛋孵化6~16d之间均为最佳食用期。是什么意思？

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In order to touch the quail eggs hatch in the process of calcium and phosphorus, this test pattern of changes in the law of the old blastocyst for 0d, 2d, 4d, 6d, 8d, 10d, 12d, 14d, 16D of the Quail embryo eggs, calcium and phosphorus are measured. Experimental results show that calcium and phosphor

In order to ascertain the quail eggs during incubation in the changes of calcium and phosphorus, embryo age the test respectively with national standard method for 0d, 2D, 4d, 6D, 8d, 10d, $literal, 12d, 16D of quails embryonic determination calcium and phosphorus content in eggs. Test results show