Well, I can't edit my comment, but I wrote it from estimates in my head, and there are some serious problems. The first is something I knew, and that you can't raise chickens on corn, but rather soy, which are substitutable, but soy has a much lower yield per acre. Feeding corn to animals just makes them fat, which is not what you want.
I have looked up some of this stuff, and doing the analysis a different way, gives a different answer.
According to wikipedia, a chicken is 33% efficient at turning food protein into meat protein. Soy is the protein used in all commercial animal feeds. So if the vegetarian food has a higher protein acreage yield than 1/3 of soy, then chicken is less efficient.
So soy give 40 bushels per acre, 60 pounds per bushel, and 36% protein. = 950 lbs of protein -> 316 pounds of chicken protein. A better yield for peanuts is probably 2500 lbs per acre, and 25% protein, so 625 lbs of protein. Peanuts and soy are both better than chicken for protein efficiency, though chicken is not all that bad.
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Well, I can't edit my comment, but I wrote it from estimates in my head, and there are some serious problems. The first is something I knew, and that you can't raise chickens on corn, but rather soy, which are substitutable, but soy has a much lower yield per acre. Feeding corn to animals just makes them fat, which is not what you want.
I have looked up some of this stuff, and doing the analysis a different way, gives a different answer.
According to wikipedia, a chicken is 33% efficient at turning food protein into meat protein. Soy is the protein used in all commercial animal feeds. So if the vegetarian food has a higher protein acreage yield than 1/3 of soy, then chicken is less efficient.
So soy give 40 bushels per acre, 60 pounds per bushel, and 36% protein. = 950 lbs of protein -> 316 pounds of chicken protein. A better yield for peanuts is probably 2500 lbs per acre, and 25% protein, so 625 lbs of protein. Peanuts and soy are both better than chicken for protein efficiency, though chicken is not all that bad.