Saturday, May 18Food Security Matters

ISA Brown Chicken Breed Profile and Characteristics

Are you looking to add a new type of chicken to your flock? Look no further than Isa Brown! Bred for egg production, the Isa Brown chicken is an ideal choice for farmers and hobbyists alike. Learn all about the Isa Brown chicken’s history, characteristics, behaviors, uses, and care in this comprehensive guide. Learn why you should consider the Isa Brown chicken for your backyard and why it has become one of the most popular chickens worldwide.

ISA  Brown History and Origin

The ISA Brown is a man-made cross-breed chicken created to lay eggs. It was first developed in France in 1978, and the acronym stands for Institut de Sélection Animale.

In 1997, the Institut combined with Merck and Co., causing the breed to become the Hubbard ISA. After that, the company has gone through multiple mergers and is now part of Group Grimaud La Corbière SA. The specific genetic components are kept secret, but it is speculated that the Rhode Island Red and White breeds were used, along with White Leghorns. What other breeds may be involved is unknown.

ISA brown

Characteristics of Isa Brown Chickens

The Isa Brown chicken is known for its hardy and friendly nature. They are easy to maintain, lay consistent eggs, and have an excellent feed conversion rate. Their feathers are golden-brown with some hints of red, making them a colorful addition to any flock.

The Isa Brown is a dual-purpose breed, meaning they are well-suited for both egg production as well as meat production. They are active and alert, with a lively personality. They are good foragers and require minimal housing requirements. They are a relatively docile breed and are less likely to cause havoc in the yard than some other breeds. In terms of egg production, the Isa Brown can lay up to 250 large, brown eggs per year and can be easily trained to come back to the coop at night.


The Isa Brown is a breed of chicken that is easily recognizable for its distinctive red-brown feathers. It has a larger body size than most hens and is extremely active, with a strong disposition for foraging. They are described as reliable layers of substantial-sized, deep brown eggs. Quite a few Isa Browns also possess a small white “bib” just under their beak. The breed is also known for its hardiness and good-naturedness-, making it an excellent choice for those new to keeping chickens.

Behavioral Characteristics

The Isa Brown chicken is known for its docile and friendly behavior. This attention-seeking breed is highly sociable, often forming a bond with its keeper and other chickens. Their activity level is moderate and they enjoy free-ranging and foraging in your backyard or garden. Isa Browns are also quite tolerant of other breeds and can easily be kept in mixed flocks. They are great egg layers and will often lay an egg a day. There are some reports that they can become aggressive when competing for food or nesting boxes, but generally, they are gentle, peaceful birds.

Uses of Isa Brown Chickens

In addition to their popularity as a pet and snowbirds, Isa Brown chickens are also widely utilized for commercial purposes. Isa Browns are well known for their excellent egg-laying abilities and are currently the top layer of choice for commercial egg production. The chickens produce more eggs than other breeds and due to their good feed conversion ratio, commercial farmers find them to be more cost-effective. As a result, Isa Browns are now the most widespread commercial layer in many parts of the world. They are also bred for their meat. The birds typically reach market weight at around 6–7 weeks, making them an ideal choice for meat production.

Egg Production

The Isa Brown chicken is known for its superior egg production. This breed is one of the most productive layers of large brown eggs, typically laying around 300 eggs each year. Isa Browns are an active breed, often wandering and foraging in the grass. The hens are quite tame and docile, allowing them to integrate with the other breeds in a flock. While they are not broody, they make excellent mothers when rearing chicks. With proper care, Isa Brown layers can be productive between 1 to 5 years and can lay eggs for up to 7 years.

Meat Production

The Isa Brown chicken is a hybrid breed of poultry developed in the 1970s in Australia. They are used mainly for meat production, as they are known for their rapid growth and voluminous meat production. They are also an excellent layer of eggs, laying up to 300 per year per hen. The Isa Brown chicken has a deep-chested and broad-bodied profile, with a deep reddish-brown feathered complexion. The males weigh six pounds and the females weigh 4.5 pounds. Isa Browns are active foragers, but generally peaceful and well-adapted to free-range or caged confinement. They can live for up to 7 years and are known for their hardiness and resistance to disease.

Care of Isa Brown Chickens

Isa Brown Chickens are a hardy breed and require little in the way of special care. They do best in a larger, open-air environment that is free from predators, such as a run or a fenced-in yard. Isa Browns should be provided with access to a high-quality feed that is supplemented with grit for their digestive needs. Regular check-ups for parasites and other health-related issues should be conducted, as should a periodic vaccination schedule. The birds should also have access to a constant supply of clean, fresh water. It is recommended that the birds also be provided with a variety of healthy treats to promote proper nutrition, such as occasional fresh greens, fruits, and vegetables. With the right care and attention, Isa Browns can live for more than 10 years in your backyard.

Questions Related to ISA Brown

Are ISA Browns friendly?

Isa Browns have a docile nature. They are super friendly and nonaggressive, making them a great backyard pet. Their affectionate and approachable nature make them family-friendly chickens and they are suitable for homes with children.

What problems do ISA Browns have?

ISA Brown’s (and a lot of other commercial hybrid chickens) are bred to continue laying most of the year. This means that they won’t have the opportunity to rest their reproductive systems and will therefore develop tumors, cancers, prolapses, and other health issues relating to their high egg production.

What are the characteristics of ISA Brown layers?

The ISA Brown is of a friendly, sweet, and docile nature. They are a fairly quiet hen and so suit backyard living well. They are known to be affectionate with their owners and enjoy being held and cuddled; often jumping into your lap unannounced to enjoy some affection and treats.

What does ISA Brown stand for?

ISA Brown is not a breed but actually a brand, much the same as Holden or Sony. The ‘ISA’ stands for “Institut de Selection Animale”, a French company that developed the breed in 1978 as a battery hen for optimum egg production of approximately 300 eggs per hen in the first year of laying.

At what age do Isa Browns stop laying eggs?

Isa Browns are cross-breed chickens that are non-broody and recommended for those who are looking to receive a continual supply of fresh eggs. They are tame, and hardy, and make great pets but their egg-laying capabilities are short-lived (about 3-5 years).

Are ISA Brown chickens good egg layers?

Isa Browns are a hybrid breed that really is in a league of its own. They are certainly up there with the Best Egg Laying Chickens. These hens can be expected to lay up to 300-350 eggs per year. That’s almost one each day of the year.

Are ISA Browns available in the Philippines?

ISA Brown is available in the Philippines. In fact, you can find these birds being sold through Facebook groups and communities. It’s not hard to find ISA Brown in the Philippines.

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