The hepatic portal system is the system of veins comprising the hepatic portal vein and its tributaries. The liver consumes about 20% of total body oxygen when at rest, so the total liver blood flow is quite high. Blood flow to the liver is unique in that it receives both oxygenated and partially deoxygenated blood.
Mini-Aussie Ideal Weight. I have a 3 year old female Miniature Aussie and she currently weighs 30 pounds. She gets moderate exercise (2 mile brisk walk each morning; chasing rabbits, birds, etc around a 1 acre yard).
Most of my puppies average 20-25 pounds at eight weeks, some more, some less. At six months my bitches usually weigh in at 95-105 pounds, males about 15-20 pounds heavier. I seldom have a male that weights less than 190 at 12 months - they usually are over 200.