Ikki Tousen (Japanese: 一騎当千, Hepburn: Ikkitōsen, lit. "A Mighty Knight Who Matches a Thousand Knights"), also known as Battle Vixens in North America, is a Japanese manga series written and illustrated by Yūji Shiozaki. Loosely based on the classic 14th century Chinese novel Romance of the Three Kingdoms, the series revolves around an all-out turf war in the Kantō region of Japan where fighters known as Tōshi (闘士, meaning "fighting soldier") from seven schools battle for supremacy. The story centers on Hakufu Sonsaku, a fighter who transfers to Nanyo Academy, one of the seven schools involved in the turf war. Source: Wikipedia
There are several anime versions of this maga, so it's unclear which one this is from (not the first one though). It is supposed from Episode 9 though. Sonsaku Hafuku is the one character that is getting spanked in a number of them though.
In this case Sonsaku Hakufu is rude to her strict and highly unpredicatble mother Goei who promptly takes her daughter over her lap for a spanking
I believe the confusion is that these scenes are only on the DVDs (at least from what I've read, that seems to be the case.) Here are both scenes, from the DVD release (I don't think they look much better, but I'll post them anyways.) plus a couple of supplemental clips from Series 1. All English dub.
