Nederlandse versie (Dutch version)

Dun is an allele of the Dominant White locus; it dilutes black areas on a chicken to a brown tint.

P:

Silver duckwing Dutch bantam * Buff Rosecomb bantam

e+/e+,co+/co+,i+/i+,S/S * E^Wh/E^Wh,Co/Co,I^d/i+,s+/-

Notice the brown tint (dun) on the buff rosecomb in the back

*

F1 (2006):

100% rosecombed;

Silver Ginger pullets, 50% black (i+/i+) patterned, 50% dun (I^d/i+) patterned

E^Wh/e+,Co/co+,S/-

Cockerels:

50% White Blacktails

E^Wh/e+,Co/co+,i+/i+,S/s+

Note: the white band in the tail was not persistent.

50% White Browntails

E^Wh/e+,Co/co+,I^d/i+,S/s+

F1 * P

Backcross of a dun patterned silver ginger female (no picture) to a “golden” duckwing Dutch bantam male (see picture below)

E^Wh/e+,Co/co+,I^d/i+,S/- * e+/e+,co+/co+,i+/i+,S/s+

F2 (F1*P) results (2007):

50% het Columbian Co/co+,

males silver (S/S or S/s+) females silver (S/-) or gold (s+/-),

50% black patterned, 50% dun patterned

50% non Columbian (co+/co+) duckwing (e+/e+,co+) or het wheaten (E^Wh/e+,co+) type,

males silver (S/S or S/s+) females silver (S/-) or gold (s+/-),

50% black patterned, 50% dun patterned

The females were duckwing type partly without salmon breast (due to wheaten E^Wh?)

The non Columbian dun patterned are the desired phenotype Fawn silver duckwing:

e+/?,co+/co+,I^d/i+,S/?

Note the equal distribution of the brown pigment compared to blue (Bl/bl+)

Chick down color of the dun patterneds:

In the picture above the middle chick is a Columbian type (Co/co+), in the picture below it is the bottom most chick.

In the duckwing chipmunk pattern (co+/co+) the dun stripes almost merge with the wildtype brown central stripe or are very faint.

Further goals (2008):

Salmon breasted single combed females

Purebreed silver males (S/S)

F2 male * P silver duckwing Dutch bantam females