Cows were randomly
assigned to 3 treatment groups: an adjusted intravenous
insulin infusion to induce hypoglycemia at a plasma glucose
concentrations of 2.5 mmol/L (HypoG, n ¼ 5), a
hyperinsulinemic-euglycemic clamp to maintain plasma
glucose concentrations at the preinfusion concentrations to
study effects of insulin at simultaneously normal glucose
concentrations(EuG,n¼6),anda0.9%salineinfusion(NaCl,
n¼8)asacontrolwithnormalconcentrationsofinsulinand
glucose