The results showed that 1.The changing trends of serum Cain 24 hours were the same for the treating group and the control group calcium-feeding method.

• 结果表明：试验组鸡血浆钙在24h内的动态变化趋势与对照组大致相同； 在蛋壳非形成期，血浆钙浓度保持在较高水平；