protein efficiencies, beef vs. soy

[dusmcj]

Not to make a pest of myself, but I started:

http://www.democraticunderground.com/discuss/duboard.php?az=show_topic&forum=105&topic_id=5289037

to get information on the resource use needed to provide a given quantity of protein to humans in the form of soy foods, vs. in the form of soy-fed beef.

I.e., if I want to create 'N' units of protein, then if I provide it with say tofu (someone pointed out that tempeh is complete while tofu is not; you pick the food), how much soy do I need to harvest, vs. if I provide those 'N' units via beef, how much soy do I need to harvest to feed the cows to make the beef to supply it ?

I.e., how many more acres does it take to feed a given amount of protein to humans in the form of soy-fed beef than in the form of soy foods ? I'll guess a lot...

Anyone who cares to contribute here, please do. I would have posted here to start except I didn't find the forum until now.

TIA

[mzteris]

1. here're some links for you

http://www.thegreenlife.org/eat_sustainable.html

http://www.emagazine.com/view/?142&printview

http://www.alternet.org/story/12162/


You'll have to sift through these for kernels of information...

http://home.cc.umanitoba.ca/~vsmil/pdf_pubs/enzme1.pdf

http://www.earth-policy.org/Books/PB2/PB2ch9_ss4.htm