Method for in-ovo fertilisation determination and gender determination on a closed egg

Patent metadata

Field	Value
Publication number	US-11378565-B2
Application number	US-201916978679-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 9, 2018
Publication date	Jul 5, 2022
Grant date	Jul 5, 2022

Abstract

A method for in-ova fertilisation determination and gender determination on a closed egg. The aim is to specify a method for the in-ovo fertilisation determination and gender determination on a closed egg. This aim is achieved by a method in which a closed egg is positioned, candled and/or illuminated, next an image of the closed egg is recorded, then the captured data are evaluated and the position of the cardiovascular system located in the egg is calculated. A detection unit is adjusted via the calculated position of the cardiovascular system by means of a positioning unit and subsequently the blood is stimulated, then the blood-specific and blood-foreign absorption spectra are detected and selected, the fertilisation is ascertained and then the spectra containing blood-foreign information are compensated by a compensation method and the spectra are classified for sex determination.

First claim

The invention claimed is:

1. A method for determining fertilization and sex in ovo on a closed egg, only containing natural pores, comprising the method steps of: a) positioning the closed egg, b) candling and/or illuminating the egg by means of at least one light source using light in the spectrum of visible and/or near-infrared light, c) recording an image of the candled and/or illuminated closed egg by means of an optical recording system and evaluating captured data of a generated image by means of an evaluator, d) calculating a position of a cardiovascular system situated in the egg from the evaluated data of a camera image by means of the evaluator, e) setting a detector above the calculated position of the cardiovascular system by means of a positioner, f) exciting blood situated in the cardiovascular system by means of an exciter, g) detecting and selecting blood-specific absorption spectra and blood-extrinsic absorption spectra by means of a capturer, h) determining fertilization, wherein the following method steps are performed after fertilization has been established, i) compensating the spectra with blood-extrinsic information by a compensation method by means of the evaluator, j) classifying the blood-specific absorption spectra by means of a multiple classification method for determining sex.

2. The method as claimed in claim 1 , wherein, proceeding from a relative position of pointed and blunt poles with respect to one another, the closed egg is positioned substantially horizontally or substantially vertically with the pointed pole upward.

3. The method as claimed in claim 1 , wherein candling by the light source is realized above, below and/or to the side of the positioned egg.

4. The method as claimed in claim 1 , wherein at least one LED, a fluorescent lamp, a broadband supercontinuum white light laser, a tunable laser and/or a halogen lamp are used as the light source.

5. The method as claimed in claim 1 , wherein the light source has a spectral range from UV light to NIR light.

6. The method as claimed in claim 5 , wherein the light source has a spectral range from 350 to 900 nm.

7. The method as claimed in claim 1 , wherein a filter is inserted between the light source and the egg.

8. The method as claimed in claim 1 , wherein the light source is simultaneously used as the exciter.

9. The method as claimed in claim 1 , wherein the position data relating to the cardiovascular system are calculated by segmenting the generated camera image.

10. The method as claimed in claim 1 , wherein the blood-specific and/or blood-extrinsic absorption spectra are captured by means of a spectrometer, diodes and/or an HSI camera and/or an FPA detector, together with at least one lens.

11. The method as claimed in claim 1 , wherein, during or following the capture of the cardiovascular system, a measurer for determining the diameter of the cardiovascular system is introduced only through a pore in the eggshell with a diameter of ≥1 mm.

12. The method as claimed in claim 1 , wherein sexing is realized by means of absorption signals and/or fluorescence signals through a pore ≥1 mm in the egg.

13. The method as claimed in claim 1 , wherein mathematical, physical or chemical methods are used to compensate the blood-extrinsic absorption spectra.

14. The method as claimed in claim 13 , wherein the compensation of the blood-extrinsic signals in the spectra is realized by forming spectroscopic differences, wherein the difference is formed from spectra with blood-specific and blood-extrinsic absorption spectra and spectra with blood-extrinsic absorption spectra.

15. The method as claimed in claim 1 , wherein complementary sex-specific signals are used for the classification.

16. The method as claimed in claim 15 , wherein the classification is performed by means of a combination/logical linking of the complementary sex-specific signals by way of mathematical methods, particularly advantageously by forming ratios.

17. The method as claimed in claim 1 , wherein the method is realized between a 3 rd and 4 th incubation day.

Assignees

• Univ Dresden Tech

Inventors

• Preusse Grit
• Steiner Gerald
• Galli Roberta
• Koch Edmund
• Schnabel Christian

Classifications

• G06F2218/18

  by plotting the signal segments against each other, e.g. analysing scattergrams · CPC title

• G06V10/26

  Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion · CPC title

• G06V10/145

  Illumination specially adapted for pattern recognition, e.g. using gratings · CPC title

• G01N21/6486

  Measuring fluorescence of biological material, e.g. DNA, RNA, cells (G01N21/6428 takes precedence) · CPC title

• G01N33/08 Primary

  Eggs, e.g. by candling · CPC title