Some acute behavioral and physiological effects observed in local Philippine dogs voluntarily fed with monosodium glutamate (MSG) in the diet

摘要

Twelve 4 to 7 month-old Philippine nondescript dogs of both sexes were fed monosodium glutamate (MSG) in the diet in quantities varying from 0 percent, 5 percent and 10 percent of the amount of food given, using the latin square design. Both physiological and behavioral parameters were examined in all animals an hour before and after feeding. Doses of MSG as high as 10 percent did not induce any noticeable change in the behavior of the dogs. On the other hand, some temporary physiological changes such as tachycardia, vomiting, and excretion of dark-colored feces were observed in 10 of the dogs.