
Chickens come in all shapes and sizes, from tiny to giant. While some are kept as pets or show chickens, others are reared for meat and eggs. The biggest chicken breed in the world is a matter of debate, with several breeds vying for the top spot. One source claims that the Jersey Giant is the largest chicken breed, weighing between 13 and 15 pounds and standing tall at 16 to 26 inches. Another source mentions the Brahma chicken, which can weigh up to 12 pounds and reach heights of 30 inches. Other notable mentions include the Dong Tao chicken, the Malay chicken, and the White Sully, each known for its impressive size and unique characteristics.
| Characteristics | Values |
|---|---|
| Name | Weirdo |
| Weight | 22-23 pounds (10-11 kilograms) |
| Height | Not mentioned |
| Breed | White Sully |
| Origin | California, USA |
| Year | 1973 |
| Record | Guinness Book of World Records holder for heaviest chicken in the world |
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What You'll Learn

The biggest chicken breed in the world
There are several contenders for the biggest chicken breed in the world. One source states that the Jersey Giant chicken is one of the biggest chicken breeds. Jersey Giants are a heritage breed that was developed in New Jersey in the 19th century as an alternative to turkeys. The roosters can weigh up to 15 pounds, with the black variety usually just a pound heavier than the white. According to Gale Damerow, who has raised chickens for almost five decades, "Raising Jersey Giants for meat production turned out to be uneconomical because they put most of their energy into developing a strong bone structure before they start fleshing out at about six months, and take as long as nine months to reach a reasonable size for harvesting. They remain popular, however, for their huge size, calm disposition, and cold hardiness."
Another contender for the largest chicken breed is the Malay chicken, which comes from Malaysia, Indonesia, and Northern India. Males weigh in at 9 pounds, and hens weigh 7 pounds. At 3 feet tall, the Malay is also considered the tallest chicken breed.
Other large chicken breeds include the Cornish chicken, with males weighing about 10.5 pounds and females weighing 8 pounds; the Cochin chicken, with roosters weighing about 11 pounds and hens weighing 8.5 pounds; and the Brahma chicken, which can measure 2 feet, 6 inches tall. The heaviest chicken in the world was once recorded as a White Sully, a breed created by Grant Sullens, a teenage boy from West Point, California, in the 1970s.
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The heaviest chicken ever recorded
Other sources cite the Jersey Giant as the largest breed of chicken, weighing up to 13-15 pounds (5.9-6.8 kg) and growing to 16-26 inches (0.4-0.7 m) tall. They were developed in the 1800s as an alternative to turkeys and are known for their docile nature and excellent egg-laying abilities.
The Dong Tao, or "Dragon Chicken," is another contender for the heaviest chicken breed. Hailing from Vietnam, these chickens weigh between 10 and 13 pounds (4.5-5.9 kg) and can sell for thousands of dollars. Their legs are considered a delicacy in some parts of Asia, contributing to their high value.
The Brahmas, an American breed, are also mentioned as one of the largest chicken breeds. They can weigh up to 12 pounds (5.4 kg) and stand 2 feet, 6 inches (0.76 m) tall. They are known for their thick feathers and calm nature.
Lastly, the Shamo chicken, originating from Japan, is worth mentioning. The O-Shamo variety is the biggest, with roosters weighing about 12.4 pounds (5.6 kg) and hens reaching 7.5 pounds (3.4 kg).
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Large chicken breeds for meat production
The biggest chicken in the world was once a rooster named Weirdo, weighing 23 pounds. In the 1970s, a teenager from California named Grant Sullens bred the White Sully chicken, which was recognised by the Guinness Book of Records as the heaviest chicken in the world.
Now, here are some of the largest chicken breeds for meat production:
Jersey Giants
Jersey Giants are large dual-purpose birds, excellent for meat and egg production. The roosters can weigh between 13 and 15 pounds, and the hens weigh between 10 and 11 pounds. They are known for their calm disposition and cold hardiness. However, they are not widely used in commercial meat production due to the time it takes for them to reach a reasonable size for harvesting.
Cornish Cross
The Cornish Cross, also known as Cornish X or just Cornish, is a hybrid breed and a superstar in meat production. They are bred specifically for commercial meat farming and can be found in most supermarkets and restaurants. They grow rapidly, reaching about 12 pounds in just 6 weeks. They are known for their large thighs, legs, and breasts, and their meat is of excellent quality.
Orpingtons
Orpingtons are a heritage breed that can be found in black, white, blue, or buff shades. They are docile birds that can be raised for meat and eggs. The males can grow as large as 10 pounds, and they are excellent layers, producing up to 200 eggs per year.
Bresse
Bresse chickens are attractive white birds with bright blue feet. They are known for their meat production and are said to be one of the most delicious-tasting chicken breeds in the world. They are easy to raise and have a docile personality.
Red Broilers
Red Broilers, also called Red Rangers or Freedom Rangers, are a large breed with reddish-brown hues. They are adaptable to diverse environments and showcase excellent growth and foraging skills. They are bred primarily for their tender meat, but they also lay eggs if allowed to live beyond the typical slaughter period.
Other Breeds
Other large chicken breeds for meat production include the Black Laced Red Wyandotte, Dark Brahma, Buckeye, Delaware, and Speckled Sussex.
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Large chicken breeds that are good egg layers
The size of a chicken breed does not necessarily determine its egg-laying capabilities. However, some large chicken breeds are good egg layers, including:
Wyandottes
Wyandottes are large, attractive birds that can lay 200-240 eggs per year. They are friendly and make great pets, in addition to being reliable layers. The silver-laced and golden-laced varieties are the most popular because of their stunning feather patterns. Wyandottes are extremely cold-hardy, and the hens are good winter-time egg layers.
Plymouth Rocks
Plymouth Rocks are large, dual-purpose birds that can lay 200-280 eggs per year. They are hardy, adaptable to different climates, and have a long lifespan, making them a versatile addition to any flock. Plymouth Rocks are recognised by their distinctive barred plumage and friendly nature, making them popular among backyard chicken keepers.
Rhode Island Reds
Rhode Island Reds are among the most popular breeds for eggs and meat. They are large, resilient birds that lay about 200-300 eggs annually. Their deep red feathers and robust build make them a standout breed for those seeking egg production and a sturdy bird. They are known for their friendly temperament and intelligence, making them versatile and comfortable for various experience levels of keepers.
Australorps
Australorps are large Australian chickens with shimmering black and green plumage. They are docile, gentle, and great for beginners, laying around 250-364 eggs per year. Their eggs are light brown and medium to large, and they are known for being cold-hardy.
Sussex
The Sussex is a large breed that can be used for meat, eggs, and poultry shows. While it may not be suitable for beginners, Sussex hens can produce 250 eggs every year. The Speckled Sussex is a British breed known for its captivating beauty, with unique speckled feathers and a calm demeanour.
Brahma
The Brahma is a large but gentle breed, weighing about 10 pounds or more. They are good egg layers and unique in their ability to continue laying eggs regularly in the winter when many other breeds reduce their egg production.
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The tallest chicken breed in the world
Malay chickens are intimidating, with protruding brows, slanted eyes, muscular bodies, and an extreme level of confidence. Some individuals loom over 3 feet (0.91 meters) tall, towering over other breeds. They weigh around 9 pounds (4.08 kilograms) for males and 7 pounds (3.18 kilograms) for females.
Malay chickens are unique in many ways. They tend to be monogamous and have very tight-fitting, highly glossy feathers instead of fluffy down feathers. They are also one of the rarest chicken breeds, listed as "Critically Endangered" by The Livestock Conservancy.
Another tall chicken breed is the Brahma, which can measure up to 2 feet 6 inches (0.76 meters) tall.
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Frequently asked questions
The Jersey Giant chicken is the biggest chicken breed in the world. They can weigh anywhere between 13 to 15 pounds and stand tall at 16 to 26 inches.
Some other large chicken breeds include Brahmas, Malays, Cochins, Cornish chickens, Dong Tao chickens, Shamos, and White Sullies.
The biggest chicken in the world was a rooster named Weirdo, who weighed 22-23 pounds and was listed in the Guinness Book of World Records.
Large chicken breeds are known for their calm and docile nature, strong bone structure, impressive weight, and ability to adapt to different climates. They are also good egg layers and are suitable for meat production.











































