Proceedings PaperDiagnostic monitoring by infrared imaging of avian embryos
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For large scale chicken and turkey raising operations, automated 'candling' of eggs for monitoring embryonic development is effective and efficient. Candling is accomplished by the transmission of high intensity light such that it penetrates the translucent egg and gives indications of embryonic position and development. When monitoring the development of other species, however, mixed results are obtained with this technique. For instance, the Emu egg is virtually opaque to transmitted visible light, and thus cannot be candled by traditional means. During the development cycle all avian embryos, and for that mater all egg-laying creatures, exhibit changes in shell surface temperatures that indicate on-going development, or a lack of that development. Additionally, such hazards as bacterial or viral growth within the shell produce atypical thermal signatures. Analysis of the shell surface temperatures may be useful in monitoring the development of these embryos. Further applications of IR thermography in farming of avian species may make it an economically viable monitoring technique.