[uncbob]

you ever heard of a rendering plant?

That is the waste products .
Pigs are raised for their protein
Steers are raised on corn and grains
You gonna tell me steers are raised for their fat
In addition deer have a very low fat% in their meat and all they eat are grains grass etc. What fat do they consume

[uncbob]

I should add so are bufalo
They are touted as being a healthy meat since there is a very low fat content
They are raised on grass grains etc not eggs and butter

[mamelukesabre]

Once you've cut out all the tastiest parts, it all goes to the rendering plant.....there the more fat the better.

But now I do see your point, sort of. The tastiest parts are what the farmer strives for, so in that sense, the animal is not "raised" for lard or beef fat.