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The Cobb 500 is a fast-growing broiler chicken breed. They can reach a 2 kg slaughter weight at 33 days old. [1] [2] They make up around half of all globally farmed chickens as of 2016. [3] The Cobb 500 is controversial due to their health problems. Animal rights and animal welfare groups such as Open Cages have called for the industry to stop ...
In the U.S., the average feed conversion ratio (FCR) of a broiler was 1.91 kilograms of feed per kilograms of liveweight in 2011, an improvement from 4.70 in 1925. [18] Canada has a typical FCR of 1.72. [19] New Zealand commercial broiler farms have recorded the world's best broiler chicken FCR at 1.38. [20]
Broiler breeder farms raise parent stock which produce fertilized eggs. A broiler hatching egg is never sold at stores and is not meant for human consumption. [9] The males and females are separate genetic lines or breeds, so that each line can be selected for optimal traits for productivity in either females or males, rather than a single line in which a compromise is reached between female ...
The WIMEX Group is an internationally active German company in the meat and agricultural industry, based in Köthen, Saxony-Anhalt.With an annual capacity of 435.455 million hatching eggs, it is the largest producer of day-old chicks for chicken fattening in Europe [3] and one of the world's largest suppliers of broiler chickens of the Cobb breed. [4]
Diseases can be avoided with proper maintenance of the feed and feeder. A feeder is the device that supplies the feed to the poultry. [8] For privately raised chickens, or chickens as pets, feed can be delivered through jar, trough or tube feeders. The use of poultry feed can also be supplemented with food found through foraging. [9]
One indication of the effect of broilers' rapid growth rate on welfare is a comparison of the usual mortality rate for standard broiler chickens (1% per week) with that for slower-growing broiler chickens (0.25% per week) and with young laying hens (0.14% per week); the mortality rate of the fast-growing broilers is seven times the rate of ...
Such "day-old chicks" are sometimes sold as food for captive and falconers birds of prey. [21] The old hens also have little commercial value. Thus, the main sources of poultry meat a hundred years ago (spring chickens and stewing hens) have both been entirely supplanted by meat-type broiler chickens.
Actual manure generation will be lower because it is only a fractional component of litter. This translates to an average of about 0.7 ounce per day per bird, varying considerably over the life of the bird. This means that a single broiler house, which can contain well over 20,000 birds can generate over 40,000 lb (18,000 kg) of litter per flock.