Here's a complete list of the cows (one even goes for coins):
- Gelbvieh Cow - 22 Farm Cash
- Hereford Cow - 22 Farm Cash
- Mohawk Cow - 22 Farm Cash
- Galician Blond Cow - 24 Farm Cash
- Red Cow - 100,000 coins
- English Cow - 22 Farm Cash
- Autumn Cow - 22 Farm Cash
- Western Longhorn - 20 Farm Cash
All of these Cows will reach their first star of mastery within 7-13 days (the Red Cow takes the longest), and with Cows being available to harvest once each day, they shouldn't take too long to master completely. Either way, it only takes one Cow to earn a Mastery Sign, so make sure to take advantage of these re-releases while you can!
Did you already have all of these cows on your land, or are you purchasing them now specifically to master them? Sound off in the comments.