[Histometric study of age related changes of elastic and collagenous fibers in the aortic arch of Meleagris gallopavo L., 1758, of both sexes (author's transl)].

The authors have studied the quantitative variation of elastic and collagenous fibers in the aortic arch of Meleagris gallopavo (turkey), both sexes, from 1 up to 180 days old. An histometric method was employed using as integrating eyepiece for the countings. The results show that the concentration of elastic fibers increase from the first to the 45th day, decreasing from this point until the age of 180 days, while that of collagenous fibers increase from the first until the last etary group studied.