title: Anatomical observations about the closure of the ductus venosus in the dog (Canis familiaris).
abstract: 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.
mesh_terms: D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology*; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D006503:Hepatic Veins / Q000033:anatomy & histology*; D006652:Histological Techniques; D008297:Male; D011168:Portal System / Q000033:anatomy & histology*; D014682:Vena Cava, Inferior / Q000033:anatomy & histology*