Figure 1From: Effect of tetracycline administration on serum amylase activity in calves Serum amylase activity before (T 0 ) and at 30 (T 1 ), 60 (T 2 ), and 120 (T 3 ) minutes after intravenous administration of oxytetracycline hydrochloride in 15 clinically healthy Holstein calves. Back to article page