Growing up in rural Nepal, my grandfather had 6 cows(Bos taurus) and 4 buffaloes (Bubalus bubalis) and a few goats. We owned a big forested land and the cattle and goats roamed there all day and came back in the evening. I think they also maintained the local football field sometimes. We (our cattle) were pretty much the majority milk supplier in our village.
My memory could be decieving me, and english is like my 4th language, but none of our cows had testicles.
Since it was 3d structure (a sphere), i think both of them are true.