Normal levels of cholinesterase in through-bred horses. Toxicological appreciation

Abstract

The normal levels of cholinesterase in thorough-bred horses are studied in this paper. Twenty-six mares were utilized, with ages varying from 2 to 20 years, and they were kept in very good clinical conditions. These animals were distributed in two groups, according to their ages: the first group from 2 to 10 years old, the second one, from 11 to 20 years. The statistical analysis of the results, by applying the “t” test, demonstraded that the data obtained are significant at a level of 2%.It was verified that in the animals under observation, the cholinesterase contents determined by the eletrometrical method of Michel keeps a distinct relationship between the two age groups. By the results obtained, one should consider that the animals are less susceptible to an intoxication by inhibitory agents of Cholinesterase than older animals, when submitted to the same amount of the toxical agent.