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Chickens that are "pasture-raised" or "free range" will typically lay eggs with a darker, more orange-colored yolk, Steele said, "because their diet consists mainly of grasses, weeds and other ...
“For chickens that lay brown eggs, a pigment protein called protoporphyrin is added as the eggshell is built, thus adding the brown coloration,” says James K. Yarborough, extension agent of ...
Fibromelanosis is also found in some other black or blue-skinned chicken breeds, such as the Silkie. [6] [7] The roosters weigh 2–2.5 kg (4.4–5.5 lb) and the hens 1.5–2 kg (3.3–4.4 lb). The hens lay tinted or cream-colored eggs, although they are poor setters and rarely hatch their own brood. Eggs weigh an average of 45 g (1.6 oz).
[20] [21] Generally, chicken breeds with white ear lobes lay white eggs, whereas chickens with red ear lobes lay brown eggs. [22] Although there is no significant link between shell color and nutritional value, often there is a cultural preference for one color over another (see § Color of eggshell below). As candling is less effective with ...
All chickens lay eggs, have edible meat, and possess a unique appearance. However, distinct breeds are the result of selective breeding to emphasize certain traits. Any breed may be used for general agricultural purposes, and all breeds are shown to some degree. But each chicken breed is known for a primary use.
The New Hampshire Red was bred to be a dual-purpose breed, suitable for production of both meat and eggs. It adapts well to either intensive or extensive management, and yields a meaty carcass. [8]: 192 [10]: 97 Hens lay approximately 220 brown eggs per year, with an average weight of about 55 g; [12] they sit well, and are good mothers.
Although they are fair layers themselves, laying only about three eggs a week, they are commonly used to hatch eggs from other breeds and bird species due to their broody nature. Silkie chickens have been bred to have a wide variety of colors which include but are not limited to: Black, Blue, Buff, Partridge, Splash, White, Lavender, Paint and ...
Red shaver hens can lay from 305 to 315 eggs a year, [3] and are reported to be prolific producers of large brown eggs. One four-year-old Red Shaver chicken in Ottawa was credited with laying an egg with a mass of 143 grams, which is almost three times the size of a standard medium egg (Typically a medium egg is 49 g, a jumbo egg is 70 g).