Quan Zouhua was certainly not a dog.
How can the mythical monster from the western continent, the legendary demonic wolf Fenrir who could devour gods, be a dog? Actually, most of the immortal beast lineage were unique. Even if they were similar in appearances with other spirit beasts, they were very different inside.
Not to mention that even if Fenrir was really a dog, it was still a western continent dog...
Therefore, when the Elders of the Beast Master School thought that they perfectly knew the spirit dog properties of the moon spirit and therefore used the spirit dog restraining ability of the beast collar, with the use of the dog trainer lash to tie down the demon wolf Fenrir, they were doomed to suffer a miserable end.
From the start, Fenrir hasn’t really been dominated by the beast collar. Although the beast collar was a spiritual treasure and thus certainly have a level of influence on it, but, it was easy to suddenly wound the enemy when they were completely unprepared.