DOMINANT GREENSHELL GS includes several colour programs with different plumage colours and different shell colours, ranging from the light blue through turquoise green to dark olive green. Such eggshell colouring of the final DOMINANT GREENSHELL hybrids is the result of cross breeding the classic parent maternal populations of the DOMINANT programs and their subsequent cross breeding with the original DOMINANT GREENSHELL paternal lineage, created from the poultry lineages bred from the South American Araucana breed, which stabilised the genetically determined green to blue shell colour during domestication and subsequent breeding.
The laying rate of the final hybrids of all GREENSHELL colour subprograms is roughly 240 to 260 eggs and we will improve with each generation of intensive breeding. The weight of the eggs is about 57 to 59 g. The plumage colour is determined by the use of the parent population and it is the parent population that also affects the eggshell colour in the final hybrid.
The subprograms, namely GS 300 with plumage similar to the Barred Partridge and GS 229 having white marking after White Leghorn, produce lighter colour eggs, to a blue hue.
The following subprograms: GS 107 blue plumage, GS 959 barred plumage, GS 159 red barred, GS 902 gold – red barring with white flight feathers and tail and GS 459 light red with barring, all brow eggshell lineages after the mothers, thanks to which they produce a larger share of eggs with green to olive green with many shell shades.