^(60)Co γ射线对受精鸡蛋及当代鸡生长变化的影响

THE EFFECT OF 60 Co γ RAY ON FERTILIZED EGGS AND GROWING CHANGE IN CHICKEN

利用６０Ｃｏγ射线对受精鸡蛋进行不同剂量的刺激，结果表明：不同品种受精鸡蛋的出雏率、孵化率在３００ｒａｄ达到最大值，之后随剂量的加大而降低，受精鸡蛋经低剂量刺激有利于雄性鸡的生长，对雌性鸡生长有抑制作用；较高剂量能促使当代鸡提早开产下蛋，这些变异能否遗传后代。

The fertilized eggs were stimulated by 60 Co γ ray of different doses. The experimental results show that the rate of hatching of different fertilized eggs reaches the maximum when the dose of 60 Co γ ray is 300rad. And, the higher the dose of 60 Co γ ray is used, the lower the rate of breeding and hatching are obtained. It is concluded that it is beneficial to growing of cock and the fertilized eggs are stimulated by the 60 Co γ ray of low doses. However, the growing of hen is inhibited and eggs are early produced with the low dose treatment of 60 Co γ ray.