Abstract
Summary
At times of egg laying the serum of female pigeons showed a marked, significant increase in β-globulin and total calcium over the normal values found at all other times throughout the reproductive cycle, and at all times for the male. The relationship of calcium bound to β-globulin concentration was roughly in agreement with similar values calculable from previous work done by other methods. A fast moving component of mobility greater than that of albumin was present in many samples, male and female, particularly at times of milk formation.
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