Abstract
Abstract Previous experiments indicated that changes in rumen fluid concentration of volatile fatty acids especially in the dorsal rumen may play a role in the control of feed intake of ruminants. Experiments were designed to test for influence of possible ruminal nerve receptors in this feeding response. In Experiment 1, water (control), M acetate, M propionate (pH 6.5), or M acetate or propionate plus 400mg/ liter of Carbocaine, Xylocaine, or Oxetha-zaine (local anesthetics), were injected into the dorsal rumen of goats during spontaneous meals. Carbocaine and M acetate depressed feeding less than acetate alone (P
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