This was also Wang Shouzhe's requirement.
Aside from the top-grade cultivation technique "Red Dragon True Verses", there were also some basic beast-taming methods among the techniques that the Wang family got from the Huangfu Clan in Changning. Even though quite crude, they were enough to tame these low-level spiritual beasts and birds.
Humans' history of taming wild spiritual creatures is very long. The breeds of spiritual meat cows, spiritual meat birds, and spirit fishes that are consumed daily are all bred through years of selection by humans. By now, they have distinct differences from their wild counterparts.
Nevertheless, there are still many species with breeding value among the wild ones. Now that there's an opportunity, Wang Shouzhe will not let it pass.
Having experienced the information overload of the modern society, Wang Shouzhe clearly understands the value of spiritual beasts are far beyond just for consumption.