Standalone module from RealisticLivestock which just increases the max limit of visual animals to 200. Slider can be used to adjust the limit, accessed with Shift+T.

Realistic Weather has not been updated to be compatible with this yet and may cause issues when it is snowing.

The link to the github for the more adept users : https://github.com/Arrow-kb/FS25_MoreVisualAnimals (the download link is a direct download link from github)