The calves are now about 3-4 months old, they have been weaned and are eating only grass, so in order to grow as quickly as possible they get the best grass and are moved onto a fresh paddock daily (this also avoids the grass becoming "stale" and "tainted" which discourages the cows from eating it)
Here the calves are being wormed and recieving thier first 5:1 vaccination.