I hitched these horses yesterday. There are no roaming animals and no cave below.
Now 2 of them are diseased.
https://imgur.com/AlYIL0Khttps://imgur.com/a/81B6jzP
The tile per creature ratio of this deed is 112.36842. Optimal is 15.0 or more. This is a good figure. There are 19 creatures currently branded.