Developmental Stages of the Broad Breasted Bronze Turkey Embryo ,

The period of incubation of Broad Breasted Bronze turkey eggs necessary to obtain the various normal stages of development established by Hamburger and Hamilton for the chick embryo is presented.2. Data have been submitted on the development of the snood ("leader") in the turkey embryo.3. Measurements of the beak, toe, and foot were obtained from the seventeenth to the twenty-seventh day of incubation. From these measurements, a straight line obtained from the regression of the length of the foot on time was constructed. The equation of this line is presented, as well as equations for determining the approximate age of the embryo from measurements of the foot, or the approximate length of the foot.