EGGSHELL COLOR DYNAMICS IN MARANS × AMERAUCANA CROSSES ACROSS FIVE GENERATIONS

4th International Symposium On Biotechnology (2026),  [pp. 423-435]
 
AUTHOR(S) / АУТОР(И): Fabijan Marković, Vesna Gantner ,  Mirna Gavran
 
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DOI: https://doi.org/10.46793/SBT26.423M

ABSTRACT / САЖЕТАК:

This study examined eggshell color variation across five generations (F1–F5) of Marans × Ameraucana crosses to investigate inheritance patterns of blue-green eggshells. Progressive lightening of shell color was observed, with the lightest eggs in F5. Variation was associated with differential deposition of protoporphyrin IX and biliverdin. Results indicate a complex genetic background involving pigment-related genes and confirm Mendelian inheritance with green dominant over brown. Findings support applications in poultry breeding.

KEYWORDS / КЉУЧНЕ РЕЧИ:

eggshell color, inheritance, crossbreeding, pigments, poultry genetics

ACKNOWLEDGEMENT / ПРОЈЕКАТ:

This research was funded by the European union – NextGenerationEU (the project “Optimization of the sustainability of animal production under climate change conditions: integration of genetic, environmental, and technological factors”.

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