United Pet Club
Chicken

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
Key Traits
GentleCalmDocileGood-natured

Characteristics

Energy Level2
Trainability2
Good With Kids3
Good With Pets2
Grooming Needs3

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.

Plumage: rulings by club
Color or patternAPAPCGBEE
BlackStandard (“Black”)Standard (“The black”)Standard (“schwarz”)
WhiteStandard (“White”)Standard (“The white”)Standard (“weiß”)
BlueStandard (“Blue”)Standard (“The blue”)Standard (“blau-gesäumt”)
Patterns
SolidStandard (“Black; White”)Standard (“The black; The white”)Standard (“schwarz; weiß”)
LacedStandard (“Blue”)Standard (“The blue”)Standard (“blau-gesäumt”)
Skin and scales: rulings by club
Color or patternPCGB
WhiteStandard (“Skin nearly white”)
YellowNo ruling
Eyes: rulings by club
Color or patternPCGB
BlackStandard (“In both sexes and all colours... Eyes brown to black”)
BrownStandard (“In both sexes and all colours... Eyes brown to black”)
Beak: rulings by club
Color or patternPCGB
BlackStandard (“Beak black, shading to yellow towards the [tip]”)
YellowStandard (“Beak willow (some yellow permissible at present); Beak black, shading to yellow towards the [tip]”)
WillowStandard (“Beak willow (some yellow permissible at present)”)
Legs and feet: rulings by club
Color or patternPCGB
BlackStandard (“Legs and feet black, with a tendency towards willow in adult birds, the underpart of the feet being yellow”)
YellowStandard (“Legs and feet willow, i.e. dark greenish-yellow, soles yellow”)
WillowStandard (“Legs and feet willow, i.e. dark greenish-yellow, soles yellow”)
Comb and wattles: rulings by club
Color or patternPCGB
RedStandard (“Comb, face, wattles and ear-lobes red”)
Earlobes: rulings by club
Color or patternPCGB
RedStandard (“...ear-lobes red”)
Eggshell: rulings by club
Color or patternPCGB
BrownStandard (“Egg colour: Brown Tinted to brown”)
TintedStandard (“Egg colour: Brown Tinted to brown”)

Black

Plumage: rulings by club
Color or patternAPAPCGBEE
BlackStandard (“Black”)Standard (“The black”)Standard (“schwarz”)
Patterns
SolidStandard (“Black”)Standard (“The black”)Standard (“schwarz”)

Blue

Plumage: rulings by club
Color or patternAPAPCGBEE
BlueStandard (“Blue”)Standard (“The blue”)Standard (“blau-gesäumt”)
Patterns
LacedStandard (“Blue”)Standard (“The blue”)Standard (“blau-gesäumt”)

White

Plumage: rulings by club
Color or patternAPAPCGBEE
WhiteStandard (“White”)Standard (“The white”)Standard (“weiß”)
Patterns
SolidStandard (“White”)Standard (“The white”)Standard (“weiß”)

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.

Jersey Giant quick facts
AttributeDetail
OriginUnited States
SizeGiant (heaviest purebred chicken)
Lifespan6 to 10 years
Group / roleDual-purpose (meat and eggs)
Good withFamilies, 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.

Breed standard at a glance
TraitStandard
HeightUp to about 24 inches (60 cm) tall
WeightRoosters about 13 lb (5.9 kg); hens about 10 lb (4.5 kg)
CoatTight, glossy feathering
ColoursBlack, White, Blue
EyesDark 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 ratings (1 = low, 5 = high)
TraitRating
Affection3
Energy2
Trainability3
Vocalness2
Shedding3

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.

General feeding guide
Life stageAmount per dayMeals
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 henAbout 1/3 lb (150 g) layer feedFree-choice plus scraps
Adult rooster / maintenanceAbout 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.

Common conditions
ConditionSignsNote
BumblefootSwelling, scab, or limping on the foot padHeavy birds are prone; keep perches low and bedding clean
Leg and joint strainLimping, reluctance to move, splayed stanceLinked to weight and high perches
Frostbite (comb)Blackened comb tips in coldLarge single comb is vulnerable; keep housing dry
External parasitesMites, lice, feather loss, irritationRoutine inspection and dust baths help
ObesityExcess fat, reduced layingLimit 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.

Housing specifications
ParameterRecommendation
Coop floor spaceAt least 4 sq ft per bird
Run spaceAt least 10 to 15 sq ft per bird
Roost heightLow, around 18 inches (45 cm)
Roost widthFlat 2-by-4, wide side up
Nest boxesRoomy, about 14 x 14 inches, one per 3 to 4 hens
VentilationHigh, 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.

Incubation settings
ParameterSetting
Temperature99.5 F (37.5 C) forced air
Humidity45 to 55% days 1 to 18; 65 to 70% during lockdown
DaysAbout 21
TurningAt least 3 to 5 times daily until day 18, then stop

Hatching steps

  1. Choose large, clean, well-formed eggs from healthy parent stock
  2. Stabilize the incubator at temperature and humidity before setting eggs
  3. Turn eggs several times daily through day 18
  4. Stop turning and raise humidity for lockdown on day 18
  5. Let chicks hatch and dry in the incubator before moving them to a warm brooder
  6. 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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