A couple of Thanksgiving Explainers from the archives.

Answers to your questions about the news.
Nov. 25 2010 8:17 AM

How Do Farmers Produce So Many Turkeys for One Day?

Plus, how did turkey makes its way onto the holiday menu?

Where do all the turkeys come from?
Where do all the turkeys come from?

Slate first answered the following two "Explainer" questions in 2008 and 2007, respectively.

If last year's numbers are any indication, some 46 million turkeys across America will be trussed up for Thanksgiving dinner this Thursday. That's about 17 percent of all turkeys raised in the United States in a given year. How do turkey farmers meet the huge single-day demand for their birds?

They plan ahead. Major commercial turkey brands, like Butterball, Hormel, and Cargill, produce two kinds of whole bird: frozen and fresh. Turkeys destined for the freezer are produced year-round—once these birds reach the proper size and weight, they're slaughtered and blast-frozen at minus 30 degrees Fahrenheit, at which point they can be stored all year in preparation for the holiday poultry frenzy.

Producing fresh turkeys takes more planning. Market leader Butterball, for example—which growsabout one fresh bird for every nine frozen ones—has already begun the production cycle for next year's holiday season. Eggs for breeder birds have been purchased from one of the world's two major genetic suppliers, Hybrid and Nicholas. Those eggs will then be hatched and placed in turkey farms so that they can grow and become sexually mature during the winter. (Butterball needs roughly 28,000 laying hens and 1,700 "stud" toms each year to produce the right amount of fresh turkeys.) Come springtime, these birds will produce the eggs that are destined to become the turkeys we actually eat. Hens produce eggs in 25-weeklong cycles: The first five weeks' worth go toward fresh turkey production, the rest toward the frozen turkey market. Breeder hens are normally used for a single cycle before being slaughtered and processed themselves.

The eggs laid next spring will be incubated for 28 days and then, after they hatch, the resulting turkeys will spend about 10 to 18 weeks on a farm before they're brought into the processing plant in late October and November. The birds are slaughtered, quickly chilled to between 40 and 26 degrees Fahrenheit, and then shipped out to retailers, usually all in the same day. (Some fresh birds have to go to market a little early because the plants can't process all of them in mid-November, even working at full capacity.) Poultry companies can also shuffle their production to meet increased demand, routing some of the birds that were meant to be turned into lunch meats, fresh breasts and legs, or ground turkey back into whole bird processing.

On Thanksgiving, most of us will sit down to feast on a turkey dinner. The bird also shows up on the table at Christmas. How did we end up with the tradition of eating turkeys during the holidays?

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They were fresh, affordable, and big enough to feed a crowd. Americans have long preferred large poultry for celebrations because the birds could be slaughtered without a huge economic sacrifice. Cows were more useful alive than dead, and commercial beef wasn't widely available until the late 19th century. Chicken was more highly regarded than it is today, but rooster meat was tough, and hens were valuable as long as they laid eggs. Venison would have been another option, especially during the 17th and 18th centuries, though it would have required you to hunt for your Thanksgiving meal. There was plenty of ham or brined pork around, but it wasn't considered fit for special occasions. Eating turkey was also in keeping with British holiday customs that had been imported to the New World.

Among the big birds, turkey was ideal for a fall feast. Turkeys born in the spring would spend about seven months eating insects and worms on the farm, growing to about 10 pounds by Thanksgiving. They were cheaper than geese, which were more difficult to raise, and cheaper by the pound than chickens. Cost was an important factor for holiday shoppers, because people weren't necessarily preparing just one meal; Thanksgiving was the time to bake meat and other types of pies that could last through the winter. Harriet Beecher Stowe, in Old-Town Folks, described making fruit pies at Thanksgiving "by forties and fifties and hundreds, and made of everything on the earth and under the earth." (The British once served geese, swans, and even peacocks on special occasions, but they came to prefer turkey after it was first introduced to England in about 1540. Swans, because of their diet, would taste fishy unless they were fed wheat for weeks before slaughter.)

By 1863, when Lincoln proclaimed Thanksgiving a national holiday, turkeys had taken center stage at Thanksgiving. (Americans had started holding unofficial Thanksgiving dinners in the previous century.) And while the bird had already been associated with Christmas, the turkey also gained iconic status as a yuletide meal around the same time. The classic menu of turkey with gravy, stuffing, and plum pudding was popularized by Charles Dickens' A Christmas Carol, published in 1843 and widely read in the United States. Some culinary historians believe Scrooge's gift of a Christmas turkey to the Cratchit family helped cement the turkey's place at the center of the holiday meal for both modest and affluent households. Among the wealthy, however, this changed around the turn of the 20th century as the birds became associated with the working class and poor immigrants, who often received turkeys from charities during the holidays. Americans continued to serve Thanksgiving turkey, but at Christmas, those who could afford it turned to game and beef.

Got a question about today's news? Ask the Explainer.

Explainer thanks David Anderson and Kip Bodnar of Butterball, Michael Davis of Texas A&M University, Kathleen Fitzgerald, author of America's Founding Food: The Story of New England Cooking, Cathy Kaufman of the Institute for Culinary Education, and Andrew Smith, author of The Turkey: An American Story.

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Michelle Tsai is a Beijing-based writer working on a book about Chinatowns on six continents. She blogs at ChinatownStories.com.

Nina Shen Rastogi is a writer and editor, and is also the vice president for content at Figment.

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