So great to discover this thread! I have LF Chocolate Ameraucana eggs in the incubator now, along with LF Silver Ameraucana eggs. I am so looking forward to breed some of the Chocolates to Chocolates. I will also breed my LF Lavender Ameraucana roo to both the Chocolate & the Silver hens. Now I'm wondering about breeding a Chocolate to a Silver or vice versa?... The possibilities are amazing. I know so little about genetics that I LOVE this thread and all the great info! Thanks all you genetics whizzes
The bits of information you need to remember are the following about the chocolate gene:
chocolate is recessive and sex-linked
females inherit one chocolate gene from the father- the mother has no part in passing on the chocolate gene to the female offspring
to produce chocolate female offspring- the father must be chocolate or at least one of the fathers parents was chocolate (this father is not choc)
males must inherit one chocolate gene from the mother (she has to be chocolate) and one chocolate from the father-
*
to produce chocolate male offspring the hen parent must be chocolate and at least one of the father's parents was chocolate (this father is not choc)
lavender is an autosomal recessive gene
lavender x non-lavender = no lavender F1 offspring but each F1 offspring is a carrier of the lav gene (LAV*L) and can have some lavender offspring if crossed with a lavender mate
lavender x non-lavender = F1 offspring ( not lavender) you can be assured carry lavender- any other cross and you will not know which non-lav is a carrier
for example if you cross an F1 x F1 from above cross = some lavender offspring but the other non-laves may or may not be carriers you will not know which non-lavs you can cross with a lav to produce more lavs
silver and gold are found at the same locus while silver (S*S) is dominant and gold (S*N) is recessive- usually a chicken is silver or gold
gold works like the chocolate gene
to get silver F1 offspring at least one of the parents must be silver
silver hen x gold male = (F1) silver males and gold females- F1 males are hybrids (carries silver and gold)
silver hen x silver male ( hybrid carries silver and gold) = all silver F1 males (all hybrids) some silver F1 females and some F1 gold females
gold hen x silver male (purebred carries only silver) = all F1 silver offspring but males are hybrids
gold hen x silver male (hybrid carries silver and gold) = gold males and females plus silver males and females (silver males are hybrids)
your chocolates are most likely gold so you may want to treat the chocolates like gold birds when you do your first crosses.
You will want to treat your choc birds like black phenotypes. Choc x most varieties (non choc) equals basic black offspring
Choc female x silver male = basic black with some white in hackles (females), males will be black but have silver anywhere in the pyle region
silver female x choc male ( if gold) = basic black with some red in hackles females, males same as above cross