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Food Aversion Conditioned In Anesthetized Sheep, Frederick D. Provenza, Justin J. Lynch, John V. Nolan
Food Aversion Conditioned In Anesthetized Sheep, Frederick D. Provenza, Justin J. Lynch, John V. Nolan
Green Canyon Environmental Research Area, Logan Utah
We discovered that a food aversion could be conditioned in anesthetized sheep. Sheep were allowed to eat a familiar food (alfalfa-grain pellets) for 30 min, and 90 min later they were given either an intraruminal (IR) injection of water (C), an IR injection of LiCl (L), anesthesia followed by an IR injection of water (A), or anesthesia followed by an IR injection of LiCl (A+L). Induction of anesthesia was by an intraveneous injection of pentobarbitone sodium, and maintenance of deep anesthesia was by halothane. Sheep were maintained in deep anesthesia for 2 h to ensure that the effects of LiCl …