crossing a game rooster with a dominic hen

[centrarchid]

Looks like my dominique x game cross is showing heterosis (hybrid vigor). Half sibling full games of same age getting nailed (> 90% mortality) by some pathogen / parasite while crosses not missing a beat (growth rapid and zero mortality). I thought games were toughest in world but not to this unkown challenge.

 

[centrarchid]

My second F1 dominique hen x game rooster also not following what texts say about rose comb being dominant. This cross involved another dominique by same rooster as before. Only 1/2 of chicks have a rose comb, balance have something that approximates a single but has tubercles or or points that are nearly parallel.

This third time this spring I have outcrossed dominique hens to roosters with single combs.

Why has a comb expert not chimed in to explain what is going on?

 

[gallorojo]

Only way I can think of for this to happen is if the dom is not pure rose combed. If your dom was half rose, half single, it would look like a rose comb, but, it would throw some single combs when crossed with a single comb. ppRr x pprr will give you half rose combs. ppRR x pprr gives you all rose combs. Maye I am missing something, but that's all I can think of right now.

 

[centrarchid]

Quote:
Results obtained with three lines of American dominique. All three are pure and breed true among themselves. One is a show strain.

The funky results involve two roosters. One is a pure California grey that is single combed therefore pprr. The second is American game that is Pprr. Crosses are made in separate breeding pens and cycled through incubator separately so parentage known. If my understanding is correct crossing a ppRR dominique hen x pprr California grey should give only ppRr (rosecomb) offspring. Second cross with ppRR dominique hen x Pprr American game should yeild ppRr (rosecomb) and PpRr (walnut comb). Latter not evident. Both crosses yeilding ppRr and pprr based on appearance of combs.

 

[gallorojo]

Those are some odd results, then. Maybe somebody can jump in and help?

 

[centrarchid]

Quote:
If results repeatable, then may not be odd. Possibly another loci involved pprr__?

 

[centrarchid]

Dominique hen x game rooster getting some siz and maturity. Two color morphs evident amoung males. One is darker like you would expect and is colored somewhat like a dominique hen. The second has ringed look like you expect to show quality barred rocks to look.

 

[KenK]

Quote:
Both my Dominiques and Sussex are coping with this intense heat better than the games. Maybe the age difference, games are coming eleven weeks old and the others are just over five weeks old.

 

[centrarchid]

Quote:
Both my Dominiques and Sussex are coping with this intense heat better than the games. Maybe the age difference, games are coming eleven weeks old and the others are just over five weeks old.

Size is everything in respect to heat tolerance. My smaller chicks loving the heat, but as they get bigger more heat bad. On the whole my games more heat tolerant than similar sized dominiques.

 

[Mahonri]

I learn something new here everyday.