Ushi No Tane Forum

Yes, the affection you gain in the multi-player environment transfers over, as does milking, shearing, and brushing, so you can't re-milk and re-shear and all that in single-player.

As for your Jersey cows and Suffolk sheep, I assume that their stress levels are fine since you take them to multi-player every day, but could there be a possibility that you're doing something that negatively affects their friendship? Negative actions do more damage to Jerseys' and Suffolks' friendships than regular livestock just as positive actions do less good for their friendship. Also, how long have you had these animals?

If you've already checked all of that stuff and I'm telling you something you already know, all I can suggest is be patient. Unfortunately, I've only just gotten through my first year in ANB and have yet to unlock Jerseys or Suffolks (until Fall of my first year, I completely overlooked the fact that you can unlock those kinds of livestock by yourself instead of waiting around), so I can't give you my own personal experience, just the basics.