Butyryl choline chloride

Respond to butyryl choline chloride, phytic acid and quinine hydrochloride. 

Malic add Is by far the best stimulus for both species and the responses to other test series compounds are proportionally similar. The major differences are the smaller response shown by the dog units to butyryl choline chloride and a larger response to L-cystelne. L-hlstIdIne Is the test series amino acid most excitatory to both species. Other active stimuli for both species are HCl, quinine HCl, and citric acid. 

Dog class D units are similar In part In their response properties to cat group IIIB units. The most effective test stimulus for both species Is butyryl choline chloride (Figure 10). The other test series chemicals stimulate both species to approximately the same degree, although compounds with phosphate... 

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