尿囊腔;
Nasal swab material from a swine influenza virus ( SIV)-suspected case was inoculated into the allantoic cavity of 10-day-old chicken embryos, and 72 h later, the inoculated embryos died.
疑似猪流感(SIV)病猪的鼻拭子尿囊腔接种10日龄SPF鸡胚,72h后致死鸡胚。
urachus-apex of urinary bladder to allantoic cavity
膀胱脐尿管到尿囊腔
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