Any poultry that has been injected or brined is done largley to increase its weight at minimal cost to the producer. I've seen packages labled that the have used up to a 10% solution to "enhance flavor and juiciness". A crock of **** IMHO.
Essentially, the brineing or injection is one of the last things done before packaging and freezing. So, based on the weight of the solution, I would say that maybe 0.25 pounds on average is added to the "turkey". Multiplied by 100 Thousand turkeys is 25000 pounds added weight. At 0.69 per pound on sale is roughly $17,000 dollars added "profit" (minus cost of solution etc.)
In 2010, about 190 million turkeys were produced in the united states (Millions of Turkeys
Source: USDA/NASS 2008-2009 as posted on
Industry Economic Data, Consumption, Exports, Processing, Production: uspoultry.org)
For fun, lets say half of them fall into the "injected" category. 80 million multiplies by 0.25("ave" weight increase) = 20 million pounds "added"
Multiplied by 0.69 per pound is...........
$13million 8 hundred thousand dollars.... $13,800,000.00
Thats big money for "water and salt"
Why do they have to enhance flavor to begin with? Because the mass production process has changed the way meat tastes. Mind you, I still buy mass produced as well as raise my own.