The mother of the commercial red sex links.

[NatJ]

This poll is about the mother of the commercial red sex links of the big companies.

They don't all use the same breed.

For example, I can go to the website of Ideal Poultry, and they list several kinds of sexlinks from different crosses:

https://www.idealpoultry.com/product/1326/2
"Brown Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a silver factor White Rock"

https://www.idealpoultry.com/product/1327/2
"Gold Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a Rhode Island White female"

https://www.idealpoultry.com/product/1658/2
"Red Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a Delaware female"

(I am assuming the hatchery actually knows what breeds go into the chicks they are selling, although that may not be true.)

From what I've read elsewhere, I think Rhode Island White might be the most common mother breed, but I'm quite sure it's not the only one.

 

[Mitsos Lamprogiorgos]

Correcting myself. Isa Browns are RIR X RIWs.

I don’t believe that this is true.

Hy-Line Sonia and domanant tinted d-723 are examples of crosses between rhode island red and white leghorn breeds.

Being smaller than the red sex links, overlay them by far.

Look how they look like.

https://www.google.com/search?q=hy+...19i22i30l5.18337j0j7&sourceid=chrome&ie=UTF-8

https://dominant-cz.cz/programy/kremova-skorapka/dominant-tinted-d723/

 

[Mitsos Lamprogiorgos]

They don't all use the same breed.

For example, I can go to the website of Ideal Poultry, and they list several kinds of sexlinks from different crosses:

https://www.idealpoultry.com/product/1326/2
"Brown Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a silver factor White Rock"

https://www.idealpoultry.com/product/1327/2
"Gold Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a Rhode Island White female"

https://www.idealpoultry.com/product/1658/2
"Red Sex Links were developed in the 1950's by crossing a Rhode Island Red male with a Delaware female"

(I am assuming the hatchery actually knows what breeds go into the chicks they are selling, although that may not be true.)

From what I've read elsewhere, I think Rhode Island White might be the most common mother breed, but I'm quite sure it's not the only one.

Very interesting answer. Very interesting links.

If you cross rhode island red roosters with delaware hens, the final hybrid will have a black tail. We are interested in white tailled commercial red sex links.

 

[Mitsos Lamprogiorgos]

https://redcombgenetics.co.nz/a-c-lawton-and-sons/


White rocks!!!

Bear in mind that CX meat birds are consisted an about 75% of white plymouth rocks.

CX lay every day for about half a year, without missing a day and they lay extra large eggs.

In my opinion, old strains of heirloom white rocks are the world's most BALANCED chicken specimen.

This is the reason they were selected for the industrial purpose for both meat and eggs.

 

[RoostersAreAwesome]

white leghorn lays white eggs, white leghorns are affected by caffeine (not calm at all and run like crazy) and white leghorns don't have the silver factor


rir X wl creates a hybrid that overlay the RSL, is white with some grayish feathers (both the two genders) and lays tinted eggs

If the white leghorn is silver columbian and dominant white, then they could produce a normal looking red sex link. However, leghorns that are dominant white and black, for instance, can’t produce red sex links.

 

[Mitsos Lamprogiorgos]

If the white leghorn is silver columbian and dominant white, then they could produce a normal looking red sex link. However, leghorns that are dominant white and black, for instance, can’t produce red sex links.

Light columbian leghorns can produce red sex links if used as a maternal stock and crossed with RIR boys.

But, the tail of the RSL will be black and so will be the neck hackles. The egg color creamy tinted and not brown.

Also, columbian leghorns were never used for the utility purpose, but for the show field. They may be good layers, but were never improved for this purpose.

 

[RoostersAreAwesome]

Light columbian leghorns can produce red sex links if used as a maternal stock and crossed with RIR boys.

But, the tail of the RSL will be black and so will be the neck hackles. The egg color creamy tinted and not brown.

Also, columbian leghorns were never used for the utility purpose, but for the show field. They may be good layers, but were never improved for this purpose.

I’m not talking about columbian leghorns. It’s possible for white leghorns to both be pure for dominant white and pure for silver columbian. I don’t think it’s very common for leghorns to have those genetics, though it is genetically possible. I believe silver columbian and dominant white is the genotype of white rocks and Rhode Island whites.

 

[Mitsos Lamprogiorgos]

I’m not talking about columbian leghorns. It’s possible for white leghorns to both be pure for dominant white and pure for silver columbian. I don’t think it’s very common for leghorns to have those genetics, though it is genetically possible. I believe silver columbian and dominant white is the genotype of white rocks and Rhode Island whites.

I am 100% sure that the maternal stock is white rocks, carefully selected for more than 200 years for the purpose of hyper laying.

 

[NatJ]

If you cross rhode island red roosters with delaware hens, the final hybrid will have a black tail. We are interested in white tailled commercial red sex links.

True, and the sexlinks that come from that cross do have black tails. But the chicks are still sex-linked (can be sexed by color), and are predominantly red. So I included them, even though they are not the most common coloring.

 

[NatJ]

If the white leghorn is silver columbian and dominant white, then they could produce a normal looking red sex link.

So you're talking about a Leghorn with the Columbian gene (affects how the colors are distributed on the chicken), and the Silver gene (changes red to white) and the Dominant White gene (changes black to white.)

Yes, that would make a chicken that looks white and can produce the normal kind of red sex link (Columbian pattern, daughter gets the gold gene from the father so she looks red, and Dominant White makes the markings white instead of the black they would otherwise be.)

(I'm just re-stating it to be sure I understood correctly, and in case anyone else got tangled up in the genetic terms.)

However, leghorns that are dominant white and black, for instance, can’t produce red sex links.

Yes, white chickens are confusing because there are so many combinations of genes that can make a "white" chicken!