California Gray
| File:California Gray chicken.jpg | |
| Other names | production black[1] |
|---|---|
| Country of origin | United States |
| Traits | |
| Weight | Male: 2.5 kg (5.5 lb)[2] |
| Female: 2.0 kg (4.4 lb)[2] | |
| Egg color | white |
| Classification | |
| APA | not listed[3] |
| Chicken Gallus gallus domesticus |
|
The California Gray is an American breed of domestic chicken developed in the U.S. state of California in the 1930s by James Dryden, a professor of poultry science at Oregon Agricultural College, now Oregon State University.[citation needed] The objective of the breed's creator was to produce a dual-purpose chicken that was both suitable for meat production and laid large white eggs. By crossing a Barred Plymouth Rock rooster and a White Leghorn hen, a naturally autosexing breed with gray barred plumage (as adults) was produced. Largely because the breed was never recognized officially for exhibition by the American Poultry Association, California Grays are a rare breed in the 21st century.[2] It is not listed on the conservation priority list of the Livestock Conservancy.[4]
The California Gray not sought by the commercial factory egg producers since it is too large for battery cages.[citation needed] California Gray cocks are crossed with White Leghorn hens to produce the autosexing California White commercial hybrid, and may be known as "production black".[1]
References
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- ↑ 1.0 1.1 Gail Damerow (2012). The Chicken Encyclopedia: An Illustrated Reference. North Adams, MA: Storey Publishing. ISBN 9781603425612. p. 47.
- ↑ 2.0 2.1 2.2 Carol Ekarius (2007). Storeys Illustrated Guide to Poultry Breeds. North Adams, MA: Storey Publishing. ISBN 9781580176682. p. 47.
- ↑ APA Recognized Breeds and Varieties as of January 1, 2012. American Poultry Association. Accessed August 2014.
- ↑ Conservation Priority List. The Livestock Conservancy. Accessed August 2014.
