测量了黑凤鸡种蛋的蛋重和蛋形指数，研究蛋重和蛋形指数对黑凤鸡种蛋孵化率的影响。
The egg size and index of egg shape were measured to study the effect of egg size and index of egg shape on the hatchability of breeder egg of Heifeng hen.
种蛋存放10天内，湿度偏高或偏低，以及是否翻蛋都对孵化率影响不大。
Within 10 days, either the holding temperature or the turning egg (or not turning) had slight effect on the hatchability.
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