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People may also eat the eggs of reptiles, amphibians, and fish. Fish eggs consumed as food are known as roe or caviar. Hens and other egg-laying creatures are raised throughout the world, and mass production of chicken eggs is a global industry. In 2009, an estimated 62.1 million metric tons of eggs were produced worldwide from a total laying ...
A dual-purpose chicken is a type of chicken that may be used in the production of both eggs and meat. [42] In the past, many chicken breeds were selected for both functions. However, since the advent of laying and meat hybrids, industrial chicken breeding has made a sharp distinction between chickens with either function, [ 43 ] so that certain ...
Poultry meat and eggs provide nutritionally beneficial food containing protein of high quality. This is accompanied by low levels of fat which have a favourable mix of fatty acids. [70] Chicken meat contains about two to three times as much polyunsaturated fat as most types of red meat when measured by weight. [71]
Most fish species spawn eggs that are fertilized externally, typically with the male inseminating the eggs after the female lays them. These eggs do not have a shell and would dry out in the air. Even air-breathing amphibians lay their eggs in water, or in protective foam as with the Coast foam-nest treefrog, Chiromantis xerampelina.
Most chickens are raised for food, providing meat and eggs; others are kept as pets [1] or for cockfighting. Chickens are common and widespread domestic animals, with a total population of 26.5 billion as of 2023, and an annual production of more than 50 billion birds. A hen bred for laying can produce over 300 eggs per year.
But while a darker egg yolk does not mean a chicken is eating a nutritious, organic or fresh diet, "it likely will correlate, since the foods with the pigment are also packed with other nutrients ...
Newly-drafted USDA regulations aimed at protecting public health may make poultry safer to eat, but there's a trade-off that puts worker health and safety on the line. The USDA's proposed ...
Plumped chicken commonly contains 15% of its total weight in saltwater, but in some cases can contain as much as 30%. [1] Since the price of chicken is based on weight, opponents of the practice estimate that shoppers could be paying up to an additional $1.70 per package for added saltwater, [1] with the total annual cost to U.S. families estimated to be $2 billion in added weight charges.