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Supplanting tobacco as the state's most important agriculture product was poultry, which has dramatically increased in importance to the state's agricultural sector. Collectively, farm chickens, broiler chickens, and chicken eggs rose from 1% of the state's total farm receipts in 1990 to 18.6% in 2012. [9]
"The best in the world" White Plymouth Rocks, 1910. In the United States, chickens were raised primarily on family farms or in some cases, in poultry colonies, such as Judge Emery's Poultry Colony [1] until about 1960. Originally, the primary value in poultry keeping was eggs, and meat was considered a byproduct of egg production. [2]
The Romans used them in divination, and the Egyptians made a breakthrough when they learned the difficult technique of artificial incubation. [27] Since then, the keeping of chickens has spread around the world for the production of food with the domestic fowl being a valuable source of both eggs and meat. [28]
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 characteristics have been promoted to an extreme degree. Partly due to the discussion about male offspring ...
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Standards and laws for animal welfare have been created worldwide, broadly in line with the most widely held position in the western world, a form of utilitarianism: that it is morally acceptable for humans to use non-human animals, provided that no unnecessary suffering is caused, and that the benefits to humans outweigh the costs to the ...
The Boone County animal shelter can currently hold about 100 animals, which will be the same amount as the new shelter. But Bray said it will provide the animals with a greater "quality of life."
Equally important, embryologists can carry out experiments on such embryos, close the egg again and study the effects later in development. For instance, many important discoveries in limb development have been made using chicken embryos, such as the discovery of the apical ectodermal ridge and the zone of polarizing activity. [101]