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#109745 - 06/01/13 10:32 PM Skin / Shank Color
tmaas Offline
New Egg

Registered: 06/01/13
Posts: 4
Loc: IA
Why, when mating buff leghorn (yellow shank) to lt. brown leghorn (yellow shank), did I get yellow shanked roos and green shanked hens?

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#109746 - 06/01/13 10:44 PM Re: Skin / Shank Color [Re: tmaas]
Htul Offline
Coop Keeper

Registered: 03/02/07
Posts: 490
Loc: Australia
The rooster must be Id/id+ :this locus is sex-linked, so half the hens will be id+/_ (willow/green shanked) and half will be Id/_ (yellow shanked).

All roosters will be yellow shanked, but genetically will be either Id/Id or Id/id+.

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#109747 - 06/02/13 12:34 AM Re: Skin / Shank Color [Re: Htul]
Henk69 Offline
Moderator
Classroom Professor

Registered: 02/13/06
Posts: 2982
Loc: Netherlands
Is this pigeoneer TMaas? wink

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#109751 - 06/02/13 05:20 AM Re: Skin / Shank Color [Re: Henk69]
KazJaps Offline
Lord of the Fowl

Registered: 08/30/02
Posts: 2189
Loc: Australia
Another scenario is that the Buff Leghorn bred was id+/id+ but id+ pigment diluted by Di/Di Dilute mutation. Di is incompletely dominant, with Di/di+ id+/id+ (male) or id+/- (female) showing intermediate leg pigment. So if you crossed a Di/Di id+/id+ Buff male with Id/- Brown Leghorn female, all F1 sons (Id/id+) would have yellow legs & all F1 daughters (id+/-) would have willow legs.

This is what was found with Brumbaugh & Hollander's tested Buff Minorca rooster, ie Di/Di diluted id+ dermal pigment.


This depends on if you get any yellow-legged F1 daughters (then probably Htul's scenario, ie rooster het for Id/id+).

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#109759 - 06/03/13 11:31 AM Re: Skin / Shank Color [Re: KazJaps]
Bushman Offline
Ruler of the Roost

Registered: 07/25/07
Posts: 975
Loc: Wisconsin
Does Di also dilute yellow epidermis pigment? Something can and does. You see some birds with rich yellow shanks, and others with very pale yellow. They can be from the same hatch, raised the same way, and fed the same feed.


Edited by Bushman (06/03/13 01:59 PM)
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#109762 - 06/04/13 06:56 PM Re: Skin / Shank Color [Re: Henk69]
tmaas Offline
New Egg

Registered: 06/01/13
Posts: 4
Loc: IA
Originally Posted By: Henk69
Is this pigeoneer TMaas? wink

Hi Henk,
Yes it is. The addiction is interspecific.

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#109763 - 06/04/13 07:14 PM Re: Skin / Shank Color [Re: KazJaps]
tmaas Offline
New Egg

Registered: 06/01/13
Posts: 4
Loc: IA
Originally Posted By: KazJaps
Another scenario is that the Buff Leghorn bred was id+/id+ but id+ pigment diluted by Di/Di Dilute mutation. Di is incompletely dominant, with Di/di+ id+/id+ (male) or id+/- (female) showing intermediate leg pigment. So if you crossed a Di/Di id+/id+ Buff male with Id/- Brown Leghorn female, all F1 sons (Id/id+) would have yellow legs & all F1 daughters (id+/-) would have willow legs.

This is what was found with Brumbaugh & Hollander's tested Buff Minorca rooster, ie Di/Di diluted id+ dermal pigment.


This depends on if you get any yellow-legged F1 daughters (then probably Htul's scenario, ie rooster het for Id/id+).


This must be the case because every male is yellow skinned and every female is willow color. All the buff males are from the same bloodline of show birds so buff minorcas may have been used at one time.
I was only attempting to learn if blue or lavender were involved with the buff color, so I was surprised to get green shanked hens and no blue feathers. It'll take another generation to determine whether lavender is involved or not.

Thank You All for your help.

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#109764 - 06/04/13 07:23 PM Re: Skin / Shank Color [Re: Bushman]
tmaas Offline
New Egg

Registered: 06/01/13
Posts: 4
Loc: IA
Originally Posted By: Bushman
Does Di also dilute yellow epidermis pigment? Something can and does. You see some birds with rich yellow shanks, and others with very pale yellow. They can be from the same hatch, raised the same way, and fed the same feed.

This is the case with my buff barred Rocks. Initially, before I acquired some buff Rocks, I used buff Orpingtons to develop my first birds. I've been able to eliminate the white shanks but still struggle with pale yellow and bright yellow shanks.


Edited by tmaas (06/04/13 07:38 PM)

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#109765 - 06/05/13 12:30 AM Re: Skin / Shank Color [Re: tmaas]
Henk69 Offline
Moderator
Classroom Professor

Registered: 02/13/06
Posts: 2982
Loc: Netherlands
I don't think lavender is in your buffs. It would bleech the groundcolor to isabel.

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#109769 - 06/05/13 06:11 AM Re: Skin / Shank Color [Re: Henk69]
KazJaps Offline
Lord of the Fowl

Registered: 08/30/02
Posts: 2189
Loc: Australia
Yes, apparently B can lighten yellow skin some.

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