| abstract |
The invention relates to a method and a device (1, 100) for determining the sex of fertilized and non-incubated bird eggs (13, 130), wherein an egg (13, 130) comprises a solid egg shell (14), one of the egg shell and others Eggshell surrounded egg yolk (2) and the egg yolk (2) associated germinal disc (3) and wherein a probe (4, 40) for measuring a spectrum through a hole (17) of the egg shell (14) through toward the germinal disc (3 ) is guided with germinal disc cells (23), with the following steps: Positioning the probe (4, 40) in the region of the germinal disc (3), - spectroscopic in-ovo characterization of the seed disc cells (23) and - Sex recognition through automatic classification of spectra. The task is that the sex can already be determined quickly and reliably in the bird eggs. The solution is that an optical crystal is used as the probe (4, 40) with which a rapid and non-reactive recording of an infrared and / or near-infrared spectrum (70) using a weakened total reflection (31) within the optical crystal (4 , 40) is carried out by an evanescent field (21) in the region (29) of the germinal disc (3), wherein the extinction due to a spectral absorption of sex-specific Keimscheibenzellen (23), wherein the positioning of the optical crystal (4, 40) a permanent automatic ... |