I'm not sure if this is really a good answer to the
question, but I suspect that it's more complex than
simply what they are fed. Cows have a completely
different type of digestive tract, i.e. four stomachs,
than do pigs, who like humans only have one. For cows
a lot of the digestive process is dependent on
bacteria in the gut, but not so much for pigs or
humans. So I think that even given the same diet, pigs
would end up with different nutrients than would cows.


--- Adrienne Smith <[log in to unmask]> wrote:
> If animals make saturated fat from the carbs they
> eat (ie grain fattened
> cattle, etc), how is it that pork in this country
> contains more polyunsatured fats
> than say corn-fattened beef?



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