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The egg-laying performance of Australorps attracted attention when in 1922–1923, a team of six hens set a world record by laying 1857 eggs for an average of 309.5 eggs per hen during a 365 consecutive day trial. These figures were achieved without the lighting regimens of the modern intensive shed.
It has been shown that Styrian Chickens lay the most eggs when bred traditionally (extensively), on the farm's backyard. [5] Relatively small [6] eggs are light, of ivory colour and usually weigh 55 grams. [3] The Altsteirer is a dual-purpose breed mostly used for obtaining eggs, but also slaughtered for its good quality meat, [3] especially of ...
In the early 20th century Croad Langshans became a popular utility breed, doing well in laying trials. The hens lay 140-150 eggs a year and are good winter layers; the eggs are dark brown with a plum-coloured bloom. The hens are excellent sitters and mothers. Croad Langshans are easily tamed and adapt well to both confinement and free range.
Selective breeding over the centuries has produced hens that lay more eggs than they can hatch. Some of this progress was ancient, but most occurred after 1900. In 1900, average egg production was 83 eggs per hen per year. In 2000, it was well over 300. In the United States, laying hens are butchered after their second egg laying season.
Hens lay between 5 and 17 eggs per clutch and the eggs take between 23 and 24 days to hatch. There are between five and 10 young per brood. [ 15 ] The young are raised by the female and fledge in one to four weeks, are completely independent by the tenth to twelfth week, and reach sexual maturity by age one (Ammann, 1957).
It is a calm and docile breed; the cocks are rarely aggressive. The hens lay very large brown eggs, and are fair layers overall, known particularly as good winter layers. The birds are robust and fairly cold-hardy. The breed's plumage comes in blue as well as black and white; legs are willow in hue. Jersey Giant hens will go broody. [2]
Hens lay a good number of small white or cream eggs. [1]: 116 They are not given to broodiness as pullets, but can be when they reach two or three years of age. The breed is fast to mature, with hens laying by four and half months, and cockerels crowing at five or six weeks. [6]: 54
Though they are slow-growing compared to the broilers used by the commercial chicken industry today, they produce a good carcass. Hens lay a respectable amount of large, brown eggs and will go broody. Javas are particularly known as good foragers, needing less supplementary feed than many breeds when allowed to free range. [12]