Lavender Australorp Genetics??

[lovetopaint]

Hey there!
Yesterday I looked into lavender genetics, and I'm just wondering if lavender + lavender = 100% lavender? I wasn't really quite sure.
Both parents must be visible lavender, correct? Or am I completely off base?
Thanks so much!!!

 

[dheltzel]

To get 100% lav offspring, both parents must be lavender. If only 1 parent is lavender, you will get either all black or 50% lav, depending on whether the black parent carries the lav gene. Lavender is a simple recessive trait, if that helps.

The "other blue", popular with Blue Andulusians and now most other breeds as well, is partially dominant, which makes it impossible to get a true breeding line where all individuals are blue, but also prevents any "hidden genes" where a bird carries blue but doesn't show it, which can happen easily with Lavender.

 

[lovetopaint]

Thank you so much!
So for blue, if you breed blue x blue you don't get 100% blue?

 

[Sonoran Silkies]

Thank you so much!
So for blue, if you breed blue x blue you don't get 100% blue?

Correct. Blue X Blue will give 50% blue, 25% splash and 25% black. Of course to get correct percentages, you need to breed large numbers, The reality is that those numbers are the probability of each outcome, not the actual percentage. If you hatch 4 birds, the likelihood is that the percentages will not hold up, but if you hatch 100, they probably will.

 

[lovetopaint]

Great! But the black is just visible black, right? If you bred that with blue, would you get the same result as if it was a blue x blue?

 

[nicalandia]

Quote:
No, all Black bird mated to an all blue bird will yield 50% black and 50% blue all blue bird mated to an all blue bire bird will yield 25% splash / 25% black and 50%% blue