On a regular basis, a veterinarian will visit the farm, examining William's birds and his farm's records to ensure that the chickens are receiving the care they need.
Chickens are like any other living creatures; they can sometimes become sick. If this occurs, a prescription from a veterinarian is administered when necessary and the farmer must comply with the prescribed withdrawal period for any medications so that the birds go to market without any residues of medications in their bodies. The farmer is responsible for documentation giving the first day of medication use and the last day of use. He or she must also sign a record stating that the correct withdrawal time has taken place and report this to the processor who may perform a residue test.