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Re:SuperMeat raises $3M for lab-grown chicken by xexers on Tuesday January 02, 2018 @04:34PM (#16055938)
Compared to just eating the grains ourselves.

For cattle, it takes 100 calories of grains to produce 10 calories of beef.

Re:SuperMeat raises $3M for lab-grown chicken by emusan on Tuesday January 02, 2018 @04:42PM (#16056001)
I think it's important to point out though that cattle can digest and "convert" a significantly wider variety of plant sources into meat. Our bodies simply can't digest a lot of what they can.
Re:SuperMeat raises $3M for lab-grown chicken by xexers on Tuesday January 02, 2018 @08:15PM (#16057501)
Sure... but it's also important to point out that while cattle "should" eat grass and can eat silage... 78% of beef in America comes from feedlot cattle[1]. On feedlots, the cattle are fed grains, not grass/silage... grains that we humans can easily eat like soy, corn, and barley [2].

1. https://www.huffingtonpost.com/nil-zacharias/its-time-to-end...

2. http://www.goodfoodworld.com/2012/01/grass-fed-vs-feedlot-be...

Re:SuperMeat raises $3M for lab-grown chicken by jjeaff on Wednesday January 03, 2018 @05:20AM (#16059859)
None of those cows are raised on feedlots. Feedlots are used to fatten and "finish" the beef.

Most all cattle start their life being grass fed.