剩余卵黄的主要功能是用于孵出幼体的早期维持和躯干的生长。
The residual yolk could be used to support carcass growth and maintenance during the first days of a hathcling's life.
另用含卵黄的选择性布氏肉汤培养污染于牛奶和光鸡体表的空肠弯曲菌有增菌作用，可以提高其检出效果。
In addition, by holding the milk and defeatured chicken specimens contaminated with C. jejuni in selective Bruce's broth containing yolk, the effect of isolating the microbe may increase.
胚外中胚层在妊娠的第6.5至7.0天之间通过原始条带迁移到推测的卵黄囊。
Extraembryonic mesoderm migrates through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.
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