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There are some in Great Britain, here in the U.S. you'd have to make your own breeds from crossing stock to make a pure breed and not a hybrid.
Due to large scale poultry operations taking over what was once the family farm,smaller operations and the changing customer demand for certain types of skin color and egg color the auto sex chickens that were developed in the 1920's and 30's are extinct here in the U.S. as the commercial market for a good dual purpose auto sex bird died as well. So the auto sex breeds were effectively extinct here.
The family farm kept dual purpose birds to stay diversified in case the market changed one way or another either to eggs or meat. Large scale commercial operations did not need to diversify so the need to have a bird that could do both was wiped out. Hopefully with the market going towards free-range birds some of these dual purpose auto sex breeds will be revived.
The Cambar is a breed that is auto-sexing...it exists still in Great Britain and is derived from a Golden Campine crossed with a Barred Rock. The sex distinction on Cambar hatches is quite sharp with the girls background color being black and the boys a straw color, they will produce white to cream colored eggs, have white skin. That is the only white egg laying auto sex bird that I know of.
There are also Rhodebars,Welbars and Amrocks, they all used a Barred RocK as a base parent and have brown eggs. As of the last I knew they were still existing in the UK. If not they could be created by carefully selecting well colored parent stock and breeding to create a pure breed. A pure breed will continue to keep the auto sex coloration whereas hybrids will not.
Redstars and Blackstars are hybrids the hatcheries offer and do not sex according to color when bred to themselves and are sex link hybrids. That way you have to keep going back to the hatchery for chicks.
To be of any use in creating a pure breed auto sex the parent stock should be of production grade birds and not show birds. While show birds will make a very pretty auto sex breed; it's use for anything other than just being able to tell the hatch sex from color will be sorely degraded and the reasons the base parents were included such as egg production, broodiness, hardiness will be negated. Every so many generations it may be a good idea to breed back with a utility Parent stock to improve certain exixting traits and reduce problem inbred traits.
What else can I help you with?
How many original dog breeds are there?
There are over 340 recognized dog breeds worldwide, each with its own unique characteristics and traits.
How old do chickens get?
Most breeds of chicken will lay their first egg between 4 and 6 months old. The breed of hen determines the age it starts to lay. Begin feeding a good quality layer feed at the four month point to boost nutrition levels.
What types of bantam chickens have feathered feet and four toes?
Not many birds have more than four toes except chickens of the Dorking, Faverolle, Houden, Sultan, and Silkie Bantams, all of which have five toes. In these breeds the extra toe rises above the base of the hallux and projects upward, this toe never touches the ground. In the Silkie, the extra toes often lie nearly in the same plane as the hallux. Some birds have only three toes, while the ostrich only has two toes.
What breeds of dogs have 5 back toes?
Most dog breeds have four back toes. However, some breeds, such as the Great Pyrenees, Akbash, and Kuvasz, can have an extra toe on their hind legs, known as a "dewclaw." This extra toe is typically higher up on the leg and does not touch the ground.
What Animal weighs four stone?
Some dog breeds can weigh as four stone, depending on size and age. Each stone is 14 pounds so 4 stone is 56 pounds.
When are your chickens going to lay a egg?
Anytime after they are four to five months old. Different breeds start laying at different times. Early maturing birds can start at 4 months but some breeds take much longer.
How many toes does chooks have?
Most chickens have four toes.However, the following breeds have five toes:DorkingFaverolleHoudenSultanNon-bearded Silkie BantamsThe fifth toe of a chicken projects upward and never touches the ground.Many birds have only three toes, and the ostrich has two.
What are four of the different sheep breeds?
Merino, Poll Dorset, Suffolk, Dorper
What are the breeds of chicken undergo beak trimming?
Most commercial breeds of chicken that are being raised in contact with other chickens have their beaks trimmed. This is because the social structure of chickens means that stronger chickens will often pick on weaker chickens by pecking them. This can cause serious damage. I have kept chickens and seen other people's chickens, and the elimination of the top chicken that bullies the others the worst, or the lowest chicken that is picked on, often has little effect - another chicken takes that place. This is where we get our term 'pecking order.' Beak clipping is done so that the chickens cannot bruise each other, pull out the feathers of the weaker hens and eat their eggs. It is worst with meat chickens that are kept in cramped sheds, and battery hens that live to produce eggs, stuffed three and four to tiny cages. It is a cruel practice that can often be discontinued amongst free-range outfits where the lower chicken density means that the weaker chickens are not constantly in contact with the bullying chickens.
How many chickens can you own in Harvest Moon A Wonderful Life?
You can get four chickens/ducks per chicken shed you won.
Two monkeys four pigs and three chickens?
And what is the question?
A shopper buys four organic chickens the chickens weigh 3.2 pounds 3.8 pounds 2.9 pounds and 4.4 pounds how much less than the average weight of the four chickens was the weight of the lightest one?
The weight of the lightest chicken is 0.675 pounds less than the average weight of the four.
What do dogs look like and how long do dogs live?
Dogs are mammals that have four legs and a tail. The size and color of the dog change depending on the breed. Different breeds have different life spans.
What is the size of the caribou?
A Caribou can be anywhere from 130 to 660 pounds. In different breeds either the male or the female is bigger and heavier. They are three to four feet tall.
Can you have 2 different auto insurances on two different cars?
Yes you most certainly can. I am lucky enough to have four cars in my garage and they are all insured with different insurance companies
Do people keep chickens as pets?
Some people keep chickens for food but chickens can be kept as pets. My family have four chickens. They aren't mean and are kind of like a dog. They follow us around and can be held. Basically the answer is yes.
Has any band played the trumpet and who?
Four Fried Chickens and a Coke
