that would take just short of forever. Not to mention the losses the yukkuris would take on the trip.
That reminds me of the late 1800s, where cattle in the midwest would be herded to Chicago to be slaughtered and distributed across the nation as meat. Even cows were not herded across long destinations, so the only way you could herd a group of yukkuris anywhere would be across short distances. Whether its from their grazing field to the easy place or from one pen to the other.
Maybe some of the places that raise livestock yukkuri give them plenty of room to run around in. Then they get bored and try herding the yukkuris around with lassos.