Andújar M M, Navarro M P, Varela G
Rev Esp Fisiol. 1977 Dec;33(4):305-9.
The effect of two Ca/P relations (2.1 y 4.5) in the diet on nutritive utilization of both minerals, egg production and egg characteristics (weight, size, resistence and shell Ca content) was studied. Nutritive utilization and absolute body retention of Ca were higher with a Ca/P relation of 4.5, while the lower Ca/P relation (2.1) produced a greater utilization of P, without differences as high as in the case of Ca. As a whole, the diet with a Ca/p relation = 2.1 was more efficiently utilized but egg production did not rise optimal levels got on the diet with a Ca/P relation = 4.5 Egg characteristics were similar with both treatments.
研究了日粮中两种钙磷比（2.1和4.5）对这两种矿物质营养利用率、产蛋性能以及蛋的特性（重量、大小、抗性和蛋壳钙含量）的影响。钙磷比为4.5时，钙的营养利用率和绝对体潴留量更高，而较低的钙磷比（2.1）则使磷的利用率更高，不过在磷的情况下差异没有钙那么大。总体而言，钙磷比=2.1的日粮利用率更高，但产蛋量并未达到钙磷比=4.5的日粮所达到的最佳水平。两种处理下蛋的特性相似。
