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.
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 results of finite element analysis shows that the stress along long axis is bigger than short axis, egg shape index has a great impact on the stress when loaded.
鸡蛋的有限元分析结果表明，鸡蛋在长轴方向承载时所产生的应力比短轴方向要大，蛋型指数对应力有一定的影响，与试验结果相一致。
Major physical characters such as egg shape index, shell thickness, the proportion of each component of egg to total egg and density are analyzed for the breed eggs of Taihe silkies in this paper.
对泰和乌骨鸡种蛋的主要物理性状指标如蛋形指数、蛋壳厚度、蛋的各组成部分在总蛋质量中所占的比例以及蛋的密度等进行分析。
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