"Have you ever traveled outside the Northern Continent, Lady Valerie?" Caesar asked. At that time a waiter had just delivered his second glass. Male blood was marked with red paint. While women were marked with a dot of blue paint at the bottom of the crystal glass.
It was a way for vampires to tell the difference when drinking at a bar or something. Although it was not really needed because they have a keen sense of smell. Valerie herself will immediately know whether the blood was from an animal, male or female.
She who had been a hunter for many years also knew what boar blood, deer blood or else smelled like. When she was in a prosperous state like Lapella, it was easier for her to obtain human blood.
Animal blood was not seen very often on the dinner tables of the noble vampires of the Florentias. But they had to drink it occasionally to show their will to reduce their dependence on human blood.