Measurement of avian embryo movement in intact eggs

Details Measurement of avian embryo movement in intact eggs Measurement of avian embryo movement in intact eggs

1991-09-26

1992-12-22

Rosenberger, Richard A.

Optics: measuring and testing

Egg candling

Photoelectric

A01K 4300

Patent

active

051737370

ABSTRACT:
The present invention provides measurement of avian embryo movement in intact eggs by: directing light into and through at least one intact avian egg, with light of sufficient intensity and duration to stimulate embryo movement, whereby portions of the light exit the at least one intact avian egg; sensing instantaneous intensities of the portions of the light exiting each of the eggs, and; determining a ratio of, range of sensed light intensities (I.sub.R) to average sensed light intensities (I.sub.A), for each of the eggs. The ratio of I.sub.R :I.sub.A is a measure of avian embryo movement.

REFERENCES:
patent: 3540824 (1970-11-01), Fonda et al.
Bursian, A. V., The influence of light on the spontaneous movements of chick embryos, Bulletin of Experimental Biology and Medicine (Russian), vol. 58:7-11, Jul. 1964.
Hanson, R. P. and Brandly, C. A. Identification of vaccine strains of Newcastle disease virus, Science 122: 156-157, Jul. 1955.
Perdue, M. L., Wainright, P. W. and M. Bruch, Effects of Chicken Embryo age on time to death following infection by avian influenza viruses: implications for distinguishing highly pathogenic isolates, Virus Research 16: 137-152, 1990.
Norberg, John, "Chix in Space", Purdue Alumnus, May 1989, pp. 11 and 28-31.
Zakaria, A. H. "Effect of Fluorescent Light on Hatchability . . . " Poultry Science, 1989, 68:1585-1587.

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