Dominant white Cochin?

[cochinfan05]

Hello all! So I'm not a total idiot regarding genetics but I recently read that most Cochins are recessive white. The rooster that I currently have had a blue father and a white mother. I only ever incubated 3 of her eggs but they all were white. Now on a whim I threw some eggs in the bator and I assumed all the chicks will be white as well? He is currently housed with a white, 4 blues and a black. I also read that recessive whites are hatched with that smoky colored down which he had as a chick. I just don't understand I guess

 

[cochinfan05]

Oh. I keep reading and it just makes me more confused. Mom had to be dominant white. That doesn't mean son is though right? Regardless I'll find out soon enough. 11 eggs are going into lockdown on this weekend!

 

[cochinfan05]

Just wondering if anyone has any thoughts?

 

[Austinspoultry]

That sounds confusing. I've had a white frizzle roo breed a black hen and I got one blue chick and two blacks. So I think somebody didn't know what they were talking about when they wrote that

 

[Kev]

Try re-phrasing, it is not clear at all what you are saying or asking in the first post.

Rooster out of blue roo and white hen and......?

chick down is not a real good indicator of which type of white it has. Recessive white chicks are variable in chick down color- from white, smoky colored(some almost black), even buff colored. In one line I have recessive whites that start out with chimpunk pattern, except in gold and almost white shades.

 

[NanaKat]

How was your hatch?

Reading your post several times, I'm going to hazard a few comments. (Comments based on your first post about recessive white)
1). I think you are saying your rooster from a Blue sire and a White hen is a White ( two recessive White genes) This would means that the Blue father was split for recessive white and the mother hen is also two recessive white genes.
2) the eggs you hatched from this mother hen were White chicks...but you don't mention the rooster color, so I'm assuming it is the same Blue rooster. The chicks got the double recessive White genes by luck of the draw.
3). You are incubating eggs from the White rooster with a White hen, 4 Blue hens and 1 Black hen....the chicks will not be all white. Without knowing the genetic combo of each of the hens, you will most likely get many Blue chicks, a few Black and possibly a White.

Advice....if you can learn to identify the shape and color of the egg laid by a few of your hens, you can mark them to identify the chicks that hatch. Also use food coloring in the vents of your hens so when they lay eggs, the eggs will be color streaked. It will take time to learn which of your Blue hens and if the Black are carrying the recessive white gene.

Now if the mother is dominant white, and your white rooster is siring chicks from that same pen of hens, then the outcome will again not be all White. It depends on the combination of genes from both parents.

 

[Sonoran Silkies]

Dominant white is very leaky; especially in only a single dose. Chances of getting a completely white bird without any other colours leaking through is fairly slim, and dominant white does not prevent red or gold, only black and its dilutions.

From the standpoint of probability, breeding a bird split for recessive white to a recessive white bird should give you 50/50 odds of non-white vs white. But with small numbers of hatchlings, the probability often does not match reality. If from that pair you hatched 100 chicks, chances are that you would be very, very close to 50/50. But with only 3 or 4, having it turn out all one way or the other is just the luck of the draw.