The results of this study indicate that jarring at frequent intervals throughout the first day of incubation exerts a deleterious influence on the developing embryo. Only in one instance did an egg jarred from the fourth to the twelfth hour of incubation develop normally and hatch. Sixty per cent of the embryos thus jarred died sometime between the second and third day of incubation. The others ceased to develop between the third and eleventh day of incubation.
Proceedings of the Iowa Academy of Science
©1937 Iowa Academy of Science, Inc.
Stiles, Karl A. and Watterson, Ray L.
"The Effects of Mechanical Jarring upon the Embryogeny of Chick Embryos,"
Proceedings of the Iowa Academy of Science, 44(1), 203-204.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/88