Abstract
Summary
Intravenous injection of epinephrine (10.0 μg/kg) caused elevation of plasma FFA in unanesthetized, but not in anesthetized geese. Norepinephrine injection (20.0 μg/kg) caused elevation of plasma FFA in geese but not in turkeys (both unanesthetized). In anesthetized geese infusion of epinephrine (2.5 μg/kg/min) caused progressive decrease of plasma FFA. Norepinephrine infused at the same rate caused a sustained elevation of plasma FFA. The FFA response to norepinephrine infusion in geese was smaller than that reported in dogs under comparable conditions. In anesthetized ducks both epinephrine and norepinephrine infused at the rate of 0.5 μg/kg/min caused progressive decrease of plasma FFA. The elevations of plasma FFA and blood sugar produced by catecholamines in geese are considerably smaller than those produced by glucagon.
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