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.

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摘要：凤岭北路-厢竹大道立交是南宁市东西向快速路与南宁市快速环路交叉所设置的一重要立交。

Abstract: : chicken ridge north road-compartments bamboo road overpass east-west expressway and nanning city of nanning is fast loop overlapping set a important overpass.

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