A yeаrling pаint cоlt is аdmitted fоr castratiоn. The animal weighs 700 lb, and the veterinarian wants to use the following regimen: butorphanol (10 mg/mL) IV at 0.02 mg/kg; xylazine (10 mg/mL) IV at 0.2 mg/kg; and ketamine (100 mg/mL) IV at 2.2 mg/kg. How much xylazine should be administered?