Jersey Giant
The Jersey Giant is the largest purebred chicken, a gentle and calm American breed prized as a heavyweight table fowl.
- Size
- Giant
- Lifespan
- 6–10 years
- Origin
- United States
- Temperament
- Gentle
- Standard colors
- Black, White and Blue
Characteristics
Jersey Giant colors and patterns
What each club's breed standard says about every Jersey Giant color and pattern. Point at a ruling to see the club's own wording.
Breed standards describe the Jersey Giant in Black, White and Blue. Standard patterns: Solid and Laced.
| Color or pattern | APA | PCGB | EE |
|---|---|---|---|
| Black | Standard (“Black”) | Standard (“The black”) | Standard (“schwarz”) |
| White | Standard (“White”) | Standard (“The white”) | Standard (“weiß”) |
| Blue | Standard (“Blue”) | Standard (“The blue”) | Standard (“blau-gesäumt”) |
| Patterns | |||
| Solid | Standard (“Black; White”) | Standard (“The black; The white”) | Standard (“schwarz; weiß”) |
| Laced | Standard (“Blue”) | Standard (“The blue”) | Standard (“blau-gesäumt”) |
| Color or pattern | PCGB |
|---|---|
| White | Standard (“Skin nearly white”) |
| Yellow | No ruling |
| Color or pattern | PCGB |
|---|---|
| Black | Standard (“In both sexes and all colours... Eyes brown to black”) |
| Brown | Standard (“In both sexes and all colours... Eyes brown to black”) |
| Color or pattern | PCGB |
|---|---|
| Black | Standard (“Beak black, shading to yellow towards the [tip]”) |
| Yellow | Standard (“Beak willow (some yellow permissible at present); Beak black, shading to yellow towards the [tip]”) |
| Willow | Standard (“Beak willow (some yellow permissible at present)”) |
| Color or pattern | PCGB |
|---|---|
| Black | Standard (“Legs and feet black, with a tendency towards willow in adult birds, the underpart of the feet being yellow”) |
| Yellow | Standard (“Legs and feet willow, i.e. dark greenish-yellow, soles yellow”) |
| Willow | Standard (“Legs and feet willow, i.e. dark greenish-yellow, soles yellow”) |
| Color or pattern | PCGB |
|---|---|
| Red | Standard (“Comb, face, wattles and ear-lobes red”) |
| Color or pattern | PCGB |
|---|---|
| Red | Standard (“...ear-lobes red”) |
Black
Blue
What the rulings mean
- Standard
- Described by the club's breed standard.
Color changes
How a Jersey Giant's colors can change over its life.
Blackchanges toBarred
Plumage · With age · males only
Yellowchanges toWhite
Beak · With body condition · can change back · females only
Yellowchanges toWhite
Legs and feet · With body condition · can change back · females only
Brownchanges toLight brown
Eggshell · Progressive · from 25 weeks · females only
Sources
Each ruling comes from the club's published breed standard or color list.
About the Jersey Giant
Jersey Giants top the scale among purebred chickens: a calm, dual-purpose American breed raised for a hefty carcass and steady egg production.
Jersey Giants are a large American chicken breed, and by breed standard weight they rank as the heaviest purebred chicken kept anywhere. A mature rooster reaches roughly 13 pounds (5.9 kg), with hens close behind at about 10 pounds (4.5 kg), well above what most farmyard fowl carry. The frame is deep, broad, and upright, built to pack on meat rather than move quickly.
For a bird this size, the temperament is mild. Jersey Giants are gentle and calm, tolerate handling without trouble, and rarely turn aggressive. American breeders developed the line in the late 1800s with one goal: a meat bird large enough to stand in for turkey at the table, and the size still reflects that original purpose.
Growth is slow. These birds take several months longer than commercial broilers to fill out their large frames, which is part of why they fell out of commercial use. Small-scale keepers across Canada and the United States now raise them mainly for a hardy, dual-purpose bird that lays brown eggs and dresses out to a substantial carcass, and the breed's cold tolerance suits prairie and northern winters well.
| Attribute | Detail |
|---|---|
| Origin | United States |
| Size | Giant (heaviest purebred chicken) |
| Lifespan | 6 to 10 years |
| Group / role | Dual-purpose (meat and eggs) |
| Good with | Families, mixed flocks, calm handling |
Who this breed suits
The Jersey Giant suits keepers who have room to spare and want a docile, cold-hardy bird, a good match for many Canadian backyards through a long winter. The even temperament makes it a sensible pick for households with kids around the coop. Anyone after quick meat turnaround or a flock that fits a small yard should look at a lighter breed instead, since Jersey Giants eat heavily and grow slowly.
History and origin
American breeders in New Jersey crossed large dark fowl in the 1870s and 1880s to create the Jersey Giant, a meat bird meant to rival the turkey.
The breed traces back to Burlington County, New Jersey, in the 1870s and 1880s. Brothers John and Thomas Black did the development work, and the name nods to both the family and the state.
Their aim was a very large meat bird that could replace turkey on the dinner table. Reports credit the Black brothers with crossing large dark breeds of the day, among them Black Javas, Dark Brahmas, and Black Langshans. The cross produced a heavy, deep-bodied fowl with dark plumage.
The American Poultry Association admitted the Black variety to its Standard of Perfection in 1922. A White variety came later, and the Blue variety earned recognition as well. Black remains the most widely kept colour and is the original.
Commercial poultry operations moved toward fast-growing hybrid broilers through the twentieth century, and the slow-maturing Jersey Giant fell out of favour for large-scale meat production. Small breeders kept the line going, and today the breed lives on mainly with backyard and heritage poultry keepers, including a steady following among Canadian hobby flocks.
Appearance and breed standard
The Jersey Giant stands tall with a broad back, single comb, and yellow-soled feet; roosters weigh close to 13 pounds and hens near 10 pounds.
The Jersey Giant carries a large, square, upright frame. The back runs broad and flat, the breast is full, and the bird stands tall on heavy legs. The single comb is medium to large with six points, and the wattles and earlobes are red. Shanks are clean, meaning unfeathered, and dark, with yellow soles on the feet, a detail that helps tell the breed apart from other large dark fowl.
| Trait | Standard |
|---|---|
| Height | Up to about 24 inches (60 cm) tall |
| Weight | Roosters about 13 lb (5.9 kg); hens about 10 lb (4.5 kg) |
| Coat | Tight, glossy feathering |
| Colours | Black, White, Blue |
| Eyes | Dark brown |
Coat and colours
The Black variety shows a green sheen across the plumage in good light and remains the original and most common colour. The White variety carries clean white feathers, and the Blue variety shows a slate-blue laced pattern. Black birds have dark shanks with yellow soles, while White birds tend toward willow-coloured or dark legs. Feathering sits close to the body rather than loose and fluffy.
Temperament and behaviour
Jersey Giants behave in a docile, calm way, handle confinement and family life well, and rarely act flighty despite their bulk.
Among large chicken breeds, the Jersey Giant ranks as one of the more even-tempered. Birds move slowly, stay calm and gentle, and generally tolerate handling without panic. Roosters tend to stay mild for their size, though temperament still varies bird to bird.
Around family members the breed is approachable and easy to manage, and many households with children choose the breed for that reason. Around strangers the birds usually stay wary rather than aggressive. In a mixed flock Jersey Giants tend toward peaceable behaviour, and their bulk means smaller breeds rarely push them around, though that same size can crowd lighter birds without any intent to bully.
The breed does not fly well given its weight and stays grounded rather than flighty, so fencing does not need much height. Hens go broody now and then and make attentive mothers. Vocalization stays moderate; these birds are not particularly loud for their size.
| Trait | Rating |
|---|---|
| Affection | 3 |
| Energy | 2 |
| Trainability | 3 |
| Vocalness | 2 |
| Shedding | 3 |
Care and daily needs
Jersey Giants need roomy housing, sturdy low perches, and steady feeding to support their large frames, and they cope well with cold Canadian winters.
Grooming
- Check feet and yellow soles regularly for bumblefoot, a condition heavy birds are prone to
- Trim nails and spurs if they overgrow
- Inspect plumage for mites and lice during routine handling
- Provide a dry dust-bathing area so birds can groom themselves
Exercise
- Allow free range or a large run; the birds move slowly but still need space to stay fit
- Keep perches low, around 18 inches (45 cm), to avoid leg and foot injury on landing
- Avoid forcing birds to jump from height given their weight
- Provide ground-level enrichment such as scratch areas rather than tall structures
Environment
The breed handles cold well and copes with harsh Canadian winters, but the large single comb can suffer frostbite, so dry, draft-free housing matters. In hot weather provide shade and constant water, since heavy birds handle heat less easily. Give birds generous floor and roost space; crowding heavy birds leads to injury and pecking.
Nutrition and feeding
Jersey Giants eat more than average chickens and need steady high-protein grower feed while young, moving to a layer or maintenance ration at maturity.
Given their size and slow growth, Jersey Giants go through more feed than lighter breeds and take longer to reach full weight. Young birds need a higher-protein grower ration to build their large frames, fed over a longer stretch than fast-growing hybrids get. Laying hens do well on a complete layer feed at about 16 percent protein, with oyster shell supplying extra calcium. Constant access to clean water and grit keeps digestion working properly.
| Life stage | Amount per day | Meals |
|---|---|---|
| Chick (0 to 8 weeks) | Free-choice starter (20 to 22% protein) | Free-choice |
| Grower (8 to 20 weeks) | Free-choice grower (16 to 18% protein) | Free-choice |
| Laying hen | About 1/3 lb (150 g) layer feed | Free-choice plus scraps |
| Adult rooster / maintenance | About 1/4 to 1/3 lb (120 to 150 g) | 1 to 2 |
Treats and supplements
Scratch grains, leafy greens, and mealworms work well in moderation but should stay under about 10 percent of intake. Laying hens benefit from free-choice oyster shell for shell strength and from grit if they cannot forage on open ground. Go easy on treats, since extra fat causes problems in heavy breeds.
Health and lifespan
Jersey Giants stay generally hardy and live 6 to 10 years, though their weight makes leg, foot, and joint problems the main health concern.
The Jersey Giant is a robust, cold-hardy breed with a typical lifespan of 6 to 10 years. Most health risks trace directly back to the bird's size. Weight loads the legs and feet, so leg weakness, joint strain, and foot injuries turn up more often than in lighter breeds. Slow maturation also means birds need solid nutrition over a longer growth period to build sound bone.
| Condition | Signs | Note |
|---|---|---|
| Bumblefoot | Swelling, scab, or limping on the foot pad | Heavy birds are prone; keep perches low and bedding clean |
| Leg and joint strain | Limping, reluctance to move, splayed stance | Linked to weight and high perches |
| Frostbite (comb) | Blackened comb tips in cold | Large single comb is vulnerable; keep housing dry |
| External parasites | Mites, lice, feather loss, irritation | Routine inspection and dust baths help |
| Obesity | Excess fat, reduced laying | Limit treats; keep birds active |
Preventive care
- Provide low, wide perches and deep dry bedding to protect feet and legs
- Check feet and combs regularly, especially through winter
- Keep housing dry and draft-free to limit frostbite and respiratory illness
- Keep up a parasite-control routine and clean the coop on schedule
- Feed a balanced ration and avoid overconditioning
Habitat and housing
Jersey Giants need more coop and run space than average chickens, with low roosts and frostbite-safe ventilation to suit their large bodies.
Housing for Jersey Giants has to account for their bulk. Each bird needs more floor and roost space than a standard layer, and crowding heavy birds quickly brings on foot injury and feather pecking. The coop should stay dry, well-ventilated without drafts, and fitted with sturdy low perches the birds can reach without a long jump. Because the birds carry weight and fly poorly, run fencing does not need much height, though it still has to keep predators out.
| Parameter | Recommendation |
|---|---|
| Coop floor space | At least 4 sq ft per bird |
| Run space | At least 10 to 15 sq ft per bird |
| Roost height | Low, around 18 inches (45 cm) |
| Roost width | Flat 2-by-4, wide side up |
| Nest boxes | Roomy, about 14 x 14 inches, one per 3 to 4 hens |
| Ventilation | High, draft-free airflow above roost level |
Setup checklist
- Roomy coop sized for heavy birds, not standard layers
- Low, wide perches to protect feet and legs
- Deep, dry bedding over a solid floor
- Large nest boxes for big hens
- Shade and constant water in the run
- Predator-proof but low fencing
Hatching and incubation
Jersey Giant eggs take about 21 days to incubate at standard chicken settings, and chicks grow slowly, needing a longer brooding period than light breeds.
Jersey Giant eggs incubate on the standard chicken timeline of about 21 days. Hens go broody now and then and make good natural mothers, but many keepers prefer an incubator for tighter control. Set large, clean eggs from healthy stock, and expect chicks that hatch large and mature slowly compared with lighter breeds. Slow growth means a longer brooding period and patience before the birds reach full size.
| Parameter | Setting |
|---|---|
| Temperature | 99.5 F (37.5 C) forced air |
| Humidity | 45 to 55% days 1 to 18; 65 to 70% during lockdown |
| Days | About 21 |
| Turning | At least 3 to 5 times daily until day 18, then stop |
Hatching steps
- Choose large, clean, well-formed eggs from healthy parent stock
- Stabilize the incubator at temperature and humidity before setting eggs
- Turn eggs several times daily through day 18
- Stop turning and raise humidity for lockdown on day 18
- Let chicks hatch and dry in the incubator before moving them to a warm brooder
- Brood at about 95 F (35 C) in week one, lowering roughly 5 F (2.5 C) per week
Frequently asked questions
Common questions about the Jersey Giant cover its size, temperament, care demands, lifespan, suitability for families, and availability.
How big do Jersey Giants get?
Jersey Giants rank as the heaviest purebred chicken. Roosters reach about 13 pounds (5.9 kg) and hens about 10 pounds (4.5 kg), with birds standing up to roughly 24 inches (60 cm) tall.
Are Jersey Giants friendly?
Yes. They stay docile, calm, and good-natured, tolerate handling well, and even the roosters usually stay mild for their size, which suits families around the coop.
Are Jersey Giants hard to keep?
They stay hardy and even-tempered but demand space and feed. They eat more than average chickens, grow slowly, and need roomy housing with low perches to protect their legs and feet.
How long do Jersey Giants live?
A typical Jersey Giant lives 6 to 10 years given good care, housing, and parasite control.
Do Jersey Giants suit beginners and families?
Yes, for keepers with the space to spare. The calm temperament and cold tolerance suit beginners and families, though the high feed cost and slow growth take some getting used to.
Do Jersey Giants lay well?
They count as a dual-purpose breed and lay a fair number of large brown eggs, though breeders developed them mainly for meat, so egg output trails dedicated laying breeds.
Where can I find Jersey Giants?
Heritage and backyard breeders keep most of the flock, and hatcheries and poultry keepers across Canada and the United States sell them, with the Black variety most common and White and Blue harder to track down.
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