ISA Brown

ISA Brown [1]
Other names Hubbard Brown, Brown, Red Sexlinks [2]
Country of origin United States/France
Use eggs layers
Traits
Weight Female: 2kg (4.40lb)
Egg color brown
Comb type single
Classification
Chicken
Gallus gallus domesticus

The ISA Brown is a hybrid type of Sex Link chicken,[3] Is thought to originally been the result of crossing Rhode Island Reds and Rhode Island Whites, but now contains genetics from a wide range of breeds.The list of which is a closely guarded secret.[4][5] The a ISA Brown is a hybrid, not a true breed, developed by breeding unrelated "dam" and "sire" lines together until the final ISA Brown result. It is known for its high egg production of approximately 300 eggs per hen in the first year of laying.[6]

Free range ISA Brown hens at CERES Community Environment Park. The hen in the foreground has no white in ruff or tail and may be a different breed.

History

ISA stands for Institut de Sélection Animale, the company which developed the hybrid in 1978 for egg production as a battery hen. In 1997, the ISA Group merged with Merck & Co., forming Hubbard ISA, [7] so the hybrid is sometimes called Hubbard Isa Brown. In 2005, Institut de Sélection Animale (ISA) and Hendrix Poultry Breeders (HPB) merged in ISA B.V., which also became part of the multi-species breeding company, Hendrix Genetics. In March 2005, Hubbard was purchased from Merial Ltd by Group Grimaud La Corbiere, SA.

Commercial Laying

ISA Browns are famous for being battery hens, due to their enormous egg production rate. In recent years, they have also successfully been applied in floor- and freerange systems in Europe.

References

  1. ↑ http://www.backyardchickens.com/a/isa-browns-chicken-breeds
  2. ↑ http://www.backyardpoultrymag.com/what-breed-is-it-understanding-sex-link-chickens/
  3. ↑ http://www.backyardpoultrymag.com/what-breed-is-it-understanding-sex-link-chickens/
  4. ↑ feathersite.com
  5. ↑ ISA Brown Commercial Stock & Parent Stock
  6. ↑ http://www.ces.ncsu.edu/depts/poulsci/tech_manuals/layer_reports/38_single_cycle_report.pdf
  7. ↑ http://www.hendrix-genetics.com/en/better_breeding/breeding/
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