Chicks n stuff
Chirping
- Nov 29, 2022
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Autosexing breeds
If you have ever done an internet search for autosexing chicken breeds, you have probably seen a laundry list of chicken breeds that end in "bar", with a few more unique names to boot. This is because there have been many attempts at making an easy to sex, autosexing chicken breed. Despite being on a list for autosexing chicken breeds, some of the breeds listed are less than autosexing. This is because most of these breeds are only using the B(sexlinked barring) gene, as the only autosexing trait. Most of these breeds don't hold a candle to a modern day crele breed, and that's probably why they're mostly extinct. People didn't always know that e+(duckwing) was THE BEST foundation color to put B(sexlinked barring) over. So, people just kinda tried making a autosexing breed using several different formulas, some formulas were successful and others were just okay.
1. The Amrock is essentially no different from the Barred Plymouth Rock. In appearance it has very clean barring, very similar to the Heritage Barred Plymouth Rocks you see in America, and the name Amrock is supposed to stand for "American Rock". Any autosexing properties of this breed has are no different than the autosexing qualities of the Barred Plymouth Rock.
2. The Ancobar, this breed is a combination of the Ancona and Barred Rock. One would think merely adding the mo(mottling) gene would do nothing to enhance any autosexing properties of the B(sexlinked barring) gene. But, supposedly having mottling and sexlinked barring together enhances the autosexing properties of B(sexlinked barring). The Ancobar is supper extinct and I can't find much information about its origin, but it's super cool.
3. The Barnebar, the name implies that this breed was created by breeding the Barnvelder with the Barred Plymouth Rock. But that's all I have to go on, because I can't find any information on this breed. But, the Barnvelder has a eb(partridge) foundation color, so it's likely this breed wasn't particularly easy to sex, or the pattern genes that contribute to the double-lacing of the Barnvelder, namely Ml(melanised), and Pg(pattern gene) act to enhance the autosexing properties of sexlinked barring.
4. The Brockbar was created by combining the Buff Plymouth Rock and the Barred Plymouth Rock. The Brockbar likely had a wheaten foundation color, so this breed probably wasn't as easy to sex as day old chicks as our modern day crele breeds are.
5. The Buffbar, this breed was created by breeding the Buff Orpington and the Barred Plywood Rock. This breed would have had a wheaten foundation color, so this breed probably wasn't easy to sex as day old chicks, when compared to our modern crele breeds.
6. The Cambar, for some reason this breed is called; "the very first autosexing breed created", to make this breed, Barred Plymouth Rock roosters were put over Campine hens, the females offspring were then put under Campine roosters, and there were several more back crosses the Campine. They bred to retain the sexlinked barring and the autosomal barring.
I do not know how easy it would have been to sex day old Cambar chicks, as they would have had a ER(birchen) foundation color, considering the Campine breed makeup is;
Campine
Phenotype: black patterned gold transverse penciled, henny feathered, white-skin, slate-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(slate-shank)
Hf/Hf(henny feathered)
Lays cream eggs
Not Autosexing
The makeup of the Barred Rock is:
Barred Rock
Phenotype: black unicolor, barred, yellow-skin, yellow-shank, single comb.
Genotype:
E/E(dominant black)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Somewhat autosexing
So, just to sum this up, they mixed an autosexing breed known as the Barred Plymouth Rock with a breed called the Campine, which is NOT autosexing at all and then they called the prodigy the first autosexing breed. Good for them.
Now let's please acknowledge the real reasons the Cambar was a monumental success. The Cambar proved that white barring was sexlinked barring, and that black barring was autosomal. The autosexing capability of the Cambar was linked to, an interaction between the melanizing effects that the autosomal barring has on chick down, and melanin inhibiting effects of sexlinked barring, resulting in lighter down on male chicks homozygous for sexlinked barring.
After creating the Cambar, Punnett, who was a British geneticist, created Legbars and the Crested Cream Legbar.
The breed makeup of the Cambar should be;
Cambar
Phenotype: black patterned gold, transverse penciled, barred, henny feathered, white-skin, dusty yellow-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
B/B,or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(dusty yellow-shank)
Hf/Hf(henny feathered)?
Lays cream eggs
Autosexing
7. The Cobar is likely a Cochin based crele breed. It was described as an autosexing Cochin. But, I couldn't find much information on the breed.
8. The Dorbar was created by mix Dorkings and Barred Rocks. The Silver Gray Dorking still exists today, their breed makeup is;
Silver Gray Dorking
Phenotype: black patterned silver, duckwing, white-skin, white-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver)
r+/r+,p+/p+(single comb)
W+/W+, Id/Id(white-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Somewhat Autosexing
The Dorbar can be silver or gold, but if you were to breed them today you would have to go with silver, as the Barred Rock is silver and the only Dorking color left is silver. The breed makeup of the Dorbar would have been;
Dorbar (crele Dorking)
Phenotype: black patterned silver or gold, duckwing, barred, white or yellow-skin, white or yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver) or s+/s+(gold)
B/B, or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, or w/w, Id/Id(white or yellow-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Autosexing
9. The Hambar, this breed was made from first crossing a New Hampshire Red rooster to a barred rock hen. You keep the male offspring from this pairing, and you breed the male with the best sexlinked barring, breed them to New Hampshire Red hens. Keep the barred females, and the barred males and breed them together, breed until males are homozygous for B(sexlinked barring).
10. The Hampbar was created using the Redbar and the New Hampshire Red.
Hampbars are currently being sold at Hoover's Hatchery. So, this breed is actually still alive. Their breed makeup is;
Hampbar (Crele RIR/NHR)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)or Db/Db(darkbrown)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
11. The Niederrheiner, was bred from Buff Orpingtons, North Holland Blues, Barred Rocks, Malines, and possibly other breeds. This breed lost its autosexing abilities, the ones being sold today are supposedly not autosexing at hatch.
12. The Norske Jaerhon, the only chicken breed that is considered truly Norwegian in origin. This crele breed has some form of sexlinked dilution barring, similar to the 55 Flowery Hen. The Norske Jaerhon's breed makeup is;
Norske Jaerhon
Phenotype: black patterned gold or silver duckwing barred(sexlinked dilution), very white roosters, yellow-skin, yellow-shank, single comb.
Genotype:
eb/eb(partridge)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
Bsd/Bsd and Bsd/-(sexlinked dilution barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays white eggs
Autosexing
13. The Oklabar was created by putting White Plymouth Rock roosters over Rhode Island Red hens, then they breed the first generation cross to each other. Keeping the, Red Barred Columbian males form the second generation, and breeding them to Dark Cornish hens. The offspring from the mating with the Dark Cornish were paired to each other, and bred until the males were homozygous for sexlinked barring. For some context, the sexlinked barring came from the White Rocks, White Rocks were made from Barred Rocks, which obviously have sexlinked barring, and White Leghorns, who are known to have multiple forms of sexlinked barring. And the duckwing comes from the Rhode Island Reds, which are sometimes duckwing based.
It's likely the Oklabar breed makeup was;
Oklabar
Phenotype: black patterned red duckwing columbian, double-laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Ml/Ml(melanized)
Pg/Pg(pattern gene)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
14. The Polbar, to create this breed Plymouth Rock roosters were put over some green legged partridge hens in Poland. It's likely this breed was crele, but I can't find enough information to say what their genotype was with certainty.
15. The Redbar, also called Barred Reds, having also been called the Autosexing Rhode Island Red. Is thought to be the progeny of the Barred Rock and the Rhode Island Red.
Redbar (Crele Rhode Island Red)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
16. The Whealbar, this breed has been lost to time, even its history is unknown. It's like it never existed.
17. The Wybar was created from mixing laced Wyandottes, barred Rocks and Brussbars. This breed still exists today, but it's super rare. Using reverse engineering of the breeds used in the creation of the Wybar, and by looking at pictures of this breed I have determined that the Wybar breed makeup is likely;
Wybar
Phenotype: black patterned, silver, laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(Columbia)
Ml/Ml(melanised)
Pg/Pg(pattern gene)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays cream eggs
Autosexing
As always thank you for reading! Hope this was insightful!
Oklabar
https://shareok.org/bitstream/handle/11244/302279/oksd_TB_T-0062.pdf?sequence=1&isAllowed=y
Redbar
https://www.sciencedirect.com/science/article/pii/S0032579119509208
Autosexing chickens
https://bitchinchickens.com/2020/08/20/autosexing-chickens/
Autosexing, dorbar
http://autosexing-poultry.co.uk/breeds.htm
Autosexing chickens
https://jsh.bravesites.com/autosexing-
Amrock
https://www.domesticforest.com/amrock-chicken/
THE AUTOSEXING ANCOBAR, Cambar
https://academic.oup.com/jhered/article-abstract/32/7/221/774649
The Ancobar
https://www.merriam-webster.com/dictionary/Ancobar
Brockbar
https://www.poultryclub.org/breeds/...eated in the 1940s but,and a male Barred Rock.
Brockbar, Brussbar, Buffbar
https://www.tapatalk.com/groups/thebreed/brockbar-brussbar-and-buffbar-t253.html
Hampbar
https://hoovershatchery.com/hampbar.html
Cambar, Oklabar
https://www.european-poultry-scienc...-hatching,QUlEPTQ1OTk5NjcmTUlEPTE2MTAxNA.html
Polbar
https://www.domesticforest.com/polbar-chicken/
The Norske Jaerhon,
https://herditall.net/chickens/jaerhon/
The Norske Jaerhon,
https://morningchores.com/norwegian-jaerhons-chicken/
Wybar
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-wybar/
The Hambar,
https://eggsellent.com.au/offers/new-south-wales/hambar/
Cobar
https://www.fwi.co.uk/news/breeders-happy-accident-produces-colourful-way-to-sex-day-old-chicks
Niederrheiners
https://www.uberchicranch.com/
The Dorbar,
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-dorbar/
If you have ever done an internet search for autosexing chicken breeds, you have probably seen a laundry list of chicken breeds that end in "bar", with a few more unique names to boot. This is because there have been many attempts at making an easy to sex, autosexing chicken breed. Despite being on a list for autosexing chicken breeds, some of the breeds listed are less than autosexing. This is because most of these breeds are only using the B(sexlinked barring) gene, as the only autosexing trait. Most of these breeds don't hold a candle to a modern day crele breed, and that's probably why they're mostly extinct. People didn't always know that e+(duckwing) was THE BEST foundation color to put B(sexlinked barring) over. So, people just kinda tried making a autosexing breed using several different formulas, some formulas were successful and others were just okay.
1. The Amrock is essentially no different from the Barred Plymouth Rock. In appearance it has very clean barring, very similar to the Heritage Barred Plymouth Rocks you see in America, and the name Amrock is supposed to stand for "American Rock". Any autosexing properties of this breed has are no different than the autosexing qualities of the Barred Plymouth Rock.
2. The Ancobar, this breed is a combination of the Ancona and Barred Rock. One would think merely adding the mo(mottling) gene would do nothing to enhance any autosexing properties of the B(sexlinked barring) gene. But, supposedly having mottling and sexlinked barring together enhances the autosexing properties of B(sexlinked barring). The Ancobar is supper extinct and I can't find much information about its origin, but it's super cool.
3. The Barnebar, the name implies that this breed was created by breeding the Barnvelder with the Barred Plymouth Rock. But that's all I have to go on, because I can't find any information on this breed. But, the Barnvelder has a eb(partridge) foundation color, so it's likely this breed wasn't particularly easy to sex, or the pattern genes that contribute to the double-lacing of the Barnvelder, namely Ml(melanised), and Pg(pattern gene) act to enhance the autosexing properties of sexlinked barring.
4. The Brockbar was created by combining the Buff Plymouth Rock and the Barred Plymouth Rock. The Brockbar likely had a wheaten foundation color, so this breed probably wasn't as easy to sex as day old chicks as our modern day crele breeds are.
5. The Buffbar, this breed was created by breeding the Buff Orpington and the Barred Plywood Rock. This breed would have had a wheaten foundation color, so this breed probably wasn't easy to sex as day old chicks, when compared to our modern crele breeds.
6. The Cambar, for some reason this breed is called; "the very first autosexing breed created", to make this breed, Barred Plymouth Rock roosters were put over Campine hens, the females offspring were then put under Campine roosters, and there were several more back crosses the Campine. They bred to retain the sexlinked barring and the autosomal barring.
I do not know how easy it would have been to sex day old Cambar chicks, as they would have had a ER(birchen) foundation color, considering the Campine breed makeup is;
Campine
Phenotype: black patterned gold transverse penciled, henny feathered, white-skin, slate-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(slate-shank)
Hf/Hf(henny feathered)
Lays cream eggs
Not Autosexing
The makeup of the Barred Rock is:
Barred Rock
Phenotype: black unicolor, barred, yellow-skin, yellow-shank, single comb.
Genotype:
E/E(dominant black)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Somewhat autosexing
So, just to sum this up, they mixed an autosexing breed known as the Barred Plymouth Rock with a breed called the Campine, which is NOT autosexing at all and then they called the prodigy the first autosexing breed. Good for them.
Now let's please acknowledge the real reasons the Cambar was a monumental success. The Cambar proved that white barring was sexlinked barring, and that black barring was autosomal. The autosexing capability of the Cambar was linked to, an interaction between the melanizing effects that the autosomal barring has on chick down, and melanin inhibiting effects of sexlinked barring, resulting in lighter down on male chicks homozygous for sexlinked barring.
After creating the Cambar, Punnett, who was a British geneticist, created Legbars and the Crested Cream Legbar.
The breed makeup of the Cambar should be;
Cambar
Phenotype: black patterned gold, transverse penciled, barred, henny feathered, white-skin, dusty yellow-shank, single comb.
Genotype:
ER/ER(birchen)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
B/B,or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, id+/id+(dusty yellow-shank)
Hf/Hf(henny feathered)?
Lays cream eggs
Autosexing
7. The Cobar is likely a Cochin based crele breed. It was described as an autosexing Cochin. But, I couldn't find much information on the breed.
8. The Dorbar was created by mix Dorkings and Barred Rocks. The Silver Gray Dorking still exists today, their breed makeup is;
Silver Gray Dorking
Phenotype: black patterned silver, duckwing, white-skin, white-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver)
r+/r+,p+/p+(single comb)
W+/W+, Id/Id(white-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Somewhat Autosexing
The Dorbar can be silver or gold, but if you were to breed them today you would have to go with silver, as the Barred Rock is silver and the only Dorking color left is silver. The breed makeup of the Dorbar would have been;
Dorbar (crele Dorking)
Phenotype: black patterned silver or gold, duckwing, barred, white or yellow-skin, white or yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
S/S(silver) or s+/s+(gold)
B/B, or B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
W+/W+, or w/w, Id/Id(white or yellow-shank)
Po/Po(extra toes)
Lays cream/tan eggs
Autosexing
9. The Hambar, this breed was made from first crossing a New Hampshire Red rooster to a barred rock hen. You keep the male offspring from this pairing, and you breed the male with the best sexlinked barring, breed them to New Hampshire Red hens. Keep the barred females, and the barred males and breed them together, breed until males are homozygous for B(sexlinked barring).
10. The Hampbar was created using the Redbar and the New Hampshire Red.
Hampbars are currently being sold at Hoover's Hatchery. So, this breed is actually still alive. Their breed makeup is;
Hampbar (Crele RIR/NHR)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)or Db/Db(darkbrown)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
11. The Niederrheiner, was bred from Buff Orpingtons, North Holland Blues, Barred Rocks, Malines, and possibly other breeds. This breed lost its autosexing abilities, the ones being sold today are supposedly not autosexing at hatch.
12. The Norske Jaerhon, the only chicken breed that is considered truly Norwegian in origin. This crele breed has some form of sexlinked dilution barring, similar to the 55 Flowery Hen. The Norske Jaerhon's breed makeup is;
Norske Jaerhon
Phenotype: black patterned gold or silver duckwing barred(sexlinked dilution), very white roosters, yellow-skin, yellow-shank, single comb.
Genotype:
eb/eb(partridge)
Db/Db(darkbrown)
Pg/Pg(pattern gene)
s+/s+(gold)
Bsd/Bsd and Bsd/-(sexlinked dilution barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays white eggs
Autosexing
13. The Oklabar was created by putting White Plymouth Rock roosters over Rhode Island Red hens, then they breed the first generation cross to each other. Keeping the, Red Barred Columbian males form the second generation, and breeding them to Dark Cornish hens. The offspring from the mating with the Dark Cornish were paired to each other, and bred until the males were homozygous for sexlinked barring. For some context, the sexlinked barring came from the White Rocks, White Rocks were made from Barred Rocks, which obviously have sexlinked barring, and White Leghorns, who are known to have multiple forms of sexlinked barring. And the duckwing comes from the Rhode Island Reds, which are sometimes duckwing based.
It's likely the Oklabar breed makeup was;
Oklabar
Phenotype: black patterned red duckwing columbian, double-laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Ml/Ml(melanized)
Pg/Pg(pattern gene)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
14. The Polbar, to create this breed Plymouth Rock roosters were put over some green legged partridge hens in Poland. It's likely this breed was crele, but I can't find enough information to say what their genotype was with certainty.
15. The Redbar, also called Barred Reds, having also been called the Autosexing Rhode Island Red. Is thought to be the progeny of the Barred Rock and the Rhode Island Red.
Redbar (Crele Rhode Island Red)
Phenotype: black patterned red duckwing columbian barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(columbia)
Mh/Mh(mahogany/red)
s+/s+(gold)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays brown eggs
Autosexing
16. The Whealbar, this breed has been lost to time, even its history is unknown. It's like it never existed.
17. The Wybar was created from mixing laced Wyandottes, barred Rocks and Brussbars. This breed still exists today, but it's super rare. Using reverse engineering of the breeds used in the creation of the Wybar, and by looking at pictures of this breed I have determined that the Wybar breed makeup is likely;
Wybar
Phenotype: black patterned, silver, laced, barred, yellow-skin, yellow-shank, single comb.
Genotype:
e+/e+(duckwing)
Co/Co(Columbia)
Ml/Ml(melanised)
Pg/Pg(pattern gene)
S/S(silver)
B/B and B/-(sexlinked barring)
r+/r+,p+/p+(single comb)
w/w, Id/Id(yellow-shank)
Lays cream eggs
Autosexing
As always thank you for reading! Hope this was insightful!
Oklabar
https://shareok.org/bitstream/handle/11244/302279/oksd_TB_T-0062.pdf?sequence=1&isAllowed=y
Redbar
https://www.sciencedirect.com/science/article/pii/S0032579119509208
Autosexing chickens
https://bitchinchickens.com/2020/08/20/autosexing-chickens/
Autosexing, dorbar
http://autosexing-poultry.co.uk/breeds.htm
Autosexing chickens
https://jsh.bravesites.com/autosexing-
Amrock
https://www.domesticforest.com/amrock-chicken/
THE AUTOSEXING ANCOBAR, Cambar
https://academic.oup.com/jhered/article-abstract/32/7/221/774649
The Ancobar
https://www.merriam-webster.com/dictionary/Ancobar
Brockbar
https://www.poultryclub.org/breeds/...eated in the 1940s but,and a male Barred Rock.
Brockbar, Brussbar, Buffbar
https://www.tapatalk.com/groups/thebreed/brockbar-brussbar-and-buffbar-t253.html
Hampbar
https://hoovershatchery.com/hampbar.html
Cambar, Oklabar
https://www.european-poultry-scienc...-hatching,QUlEPTQ1OTk5NjcmTUlEPTE2MTAxNA.html
Polbar
https://www.domesticforest.com/polbar-chicken/
The Norske Jaerhon,
https://herditall.net/chickens/jaerhon/
The Norske Jaerhon,
https://morningchores.com/norwegian-jaerhons-chicken/
Wybar
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-wybar/
The Hambar,
https://eggsellent.com.au/offers/new-south-wales/hambar/
Cobar
https://www.fwi.co.uk/news/breeders-happy-accident-produces-colourful-way-to-sex-day-old-chicks
Niederrheiners
https://www.uberchicranch.com/
The Dorbar,
https://www.poultryclub.org/breeds/chickens/soft-feather-heavy/autosexing-dorbar/