What would I get.....

[FudgieFoo]

From a dark bay stallion ; mother - bright bay father - dark bay and

Bright bay mare with white flicks in coat; mother bay roan/bright bay and father unknown.

What are the likely hoods of different colours?

Surely the most likely is a bay?

And a black or chestnut but how likely is this?

Any other colours?

[Jaimee]

So bay + bay right??

It depends on the exact genetics of the two horses. Without knowing I cant tell you exactly, as there are 4 slightly different genetic makeups that will make a horse bay. But you are right that bay, black and chestnut are the possibilities. In that order. No other colours unless the colours of the parents arent actually bay.

The horse with the white flecks, does it have a blaze and or stockings/ socks by any chance?

The fact that the horse has white flecks will not alter the probability of the base colour but the foal either will or wont inherit the flecking also.

[FudgieFoo]

Yes the horse with the white flecks has a blaze and 3 white socks

[Lgd]

Chestnut is a possibility as it hides fiarly well.

For example, Peri is a bay (strictly probably a smoky bay as she is shot thorugh with black). On her dam-line her dam was bright bay out of a dark bay mare by a dark bay stallion. Her sire was smoky bay out of a chestnut mare by a bay stallion.

Peri's grand-dam is bay with a chestnut recessive - she produced 6 foals, 4 bay, one coloured and a chestnut. the chestnut was to a bay stallion!

Peri's dam had three foals, all shades of bay, all to bay stallions but both stallions known to carry chestnut.

I'm pretty sure Peri got the chestnut gene from her sire (Belle is very like his dam in colour and markings) and expressed the bay from her mother.
I used a chestnut stallion - and out snuck the chestnut - aka Belle.

And just to add to the confusion - Peri, her sire and Belle all have grey flecking in their coat, only Belle has any significant white markings though!

[galadriel]

My bright bay mare produced a chestnut filly whose chestnut is the exact same red as the coat color on the bright bay :) Not that it matters, since it looks like she'll be entirely grey by the time she's a year old! :)

Chestnut and black are both base coat colors. Black is dominant. With one black coat gene, you get a black base whether or not you've also got one chestnut. But you have to have two chestnuts to get a chestnut base.

Agouti is also dominant; that's the 2nd gene that makes a horse bay when the base coat is black. If you've got one agouti gene on a black base, then you will have a bay. You have to have 2 non-agouti genes to get a solid black horse.

Bay (black base with agouti modifier) is dominant. The horse may carry a chestnut as well. You have to get chestnut from both parents to get a chestnut foal. You can find out if the stallion has ever produced a chestnut foal; if so, he IS carrying a recessive chestnut. If he hasn't and he's had quite a few foals, there's a chance he doesn't. If he doesn't have a chestnut gene to pass along, you won't get a chestnut.

You can also ask to see if he's ever produced a black foal. If he's produced a lot of bays but no black, then you likely won't get a black foal either.

If he's produced foals that show a recessive--a chestnut or a solid black--then you know he's got those. Otherwise you can't be sure. The dam does have a lot of influence, after all, and it's always playing the odds when you breed a horse. But if he's had a lot of offspring and never ever had a chestnut or a black, then it's possible that he's bay through & through :) and that's what you'll get, since it's dominant--it won't matter if Fudge has a chestnut or a black to offer.

[xoxmissy]

It depends on how domenent the genes are, for example Im better with paints;

dark bay tobiano stallion AND black mare= black tobianno, dark bay tobiano, black horse, dark bay horse.

All depends on the domenence of the gene and if its homogenious or heterougenious, and more of that gene stuff ;)