Oliveira M C, Pinto E Silva P, Orsi A M, Define R M
Anat Anz. 1979;145(4):353-8.
The observation of the anatomical closure of ductus venosus was carried out in 108 dogs (62 females and 46 males) with age varying between 3 hours and 21 days old. We have observed that within 2 days old, the ductus venosus was found pervious in 100% of the animals sacrified; 3 days old, in 81% of the animals; 4 days old, in 62% of pups; 5 days old, in 25% and over 6 days old, the ductus venosus was anatomical closed in 100% of the animals. We have also observed that the closure starts within 48 hours on the caudal vena cava caudal side.
对108只年龄在3小时至21日龄之间的犬（62只雌性和46只雄性）进行了静脉导管解剖学闭合的观察。我们观察到，在2日龄以内，100%被处死的动物的静脉导管是通畅的；3日龄时，81%的动物是通畅的；4日龄时，62%的幼犬是通畅的；5日龄时，25%是通畅的，而超过6日龄时，100%的动物的静脉导管发生了解剖学闭合。我们还观察到，闭合在尾侧腔静脉尾侧48小时内开始。
